identifier |
naming _system |
description |
parent _class |
source |
version |
status |
|
naming _system .identifier |
|
activity _class .identifier |
|
ref _version .identifier |
|
analytic reservoir analysis |
Epicentre subtype activity |
The evaluation of reservoir performance charasteristics based upon analytical or empirical descriptions of performance. These include API recovery correlations, Stiles waterflood calculations, Gomaa steamflood performance calculations, etc. |
|
POSC |
epicentre 2.2 |
current |
choke adjustment event |
Epicentre subtype activity |
The adjustment of a choke as an event. |
|
POSC |
epicentre 2.2 |
current |
compose document specification |
Epicentre subtype activity |
The developing of a document specification, including graphical and textual layout and formatting. |
|
POSC |
epicentre 2.2 |
current |
contract processing operation |
Epicentre subtype activity |
An activity that processes a contract. |
|
POSC |
epicentre 2.2 |
current |
coordinate transformation activity |
Epicentre subtype activity |
An activity that applies a specific coordinate transformation to coordinate information to create additional coordinate information. |
|
POSC |
epicentre 2.2 |
current |
curve fit activity |
Epicentre subtype activity |
The process of placing a best fit curve through a set of data. This activity may be graphical (hand drawn) or numerical (regression). |
|
POSC |
epicentre 2.2 |
current |
draw curve fit |
Epicentre subtype activity |
The process of placing a best fit curve to data by drawing the curve. |
curve fit activity |
POSC |
epicentre 2.2 |
current |
numerical curve fit |
Epicentre subtype activity |
The process of calculating a best fit curve to data using a numerical method, probably unspecified. |
curve fit activity |
POSC |
epicentre 2.2 |
current |
linear curve fit |
Epicentre subtype activity |
The process of calculating a best fit linear model to data: y = f(x) where f is a linear function of x, which may be a vector. |
numerical curve fit |
POSC |
epicentre 2.2 |
current |
digitize document |
Epicentre subtype activity |
A description of the method by which a document, such as a well log or map, is transformed into digital form. |
|
POSC |
epicentre 2.2 |
current |
directional survey analysis |
Epicentre subtype activity |
The activity of editing, processing, and synthesizing spatial coordinates as measured by a directional survey. |
|
POSC |
epicentre 2.2 |
current |
document circulation |
Epicentre subtype activity |
The activity of circulating, distributing, or sending a document to a business associate. |
|
POSC |
epicentre 2.2 |
current |
equipment calibration |
Epicentre subtype activity |
The activity of calibragin an item of measurment equipment. |
|
POSC |
epicentre 2.2 |
current |
equipment repair job |
Epicentre subtype activity |
The activity which describes the repair of equipment, such as occurs during well operations. |
|
POSC |
epicentre 2.2 |
current |
flow system analysis |
Epicentre subtype activity |
The estimation of the performance characteristic of a fluid flow system involving simultaneous solution of inflow performance, pressure drop in tubulars, and equipment (friction, gravity, etc.), and outflow constraints. |
|
POSC |
epicentre 2.2 |
current |
geoscience interpretation |
Epicentre subtype activity |
An activity performing a geological, geophysical, or other geoscience interpretation by a business associate. |
|
POSC |
epicentre 2.2 |
current |
seismic interpretation |
Epicentre subtype activity |
A geoscience interpretation activity, specifically involved with the interpretation of seismic information. |
geoscience interpretation |
POSC |
epicentre 3.0 |
current |
checkshot analysis |
Epicentre subtype activity |
An activity of analyzing wellbore checkshot data to determine the travel time to different depths and possibly also the velocities in the material surrounding the wellbore. |
seismic interpretation |
POSC |
epicentre 2.2 |
current |
incident investigation |
Epicentre subtype activity |
Examine and search for incidents of non-compliance. This can include searching for the causes of a hazardous occurrence, assessing the economic impact of an accident, or determining the scope of culpability for a violation. |
|
POSC |
epicentre 2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
lift system analysis |
Epicentre subtype activity |
The estimation of the performance characteristics of an artificial lift system such as those for gas lift, submersible, or sucker rod pumping. |
|
POSC |
epicentre 2.2 |
current |
log trace analysis |
Epicentre subtype activity |
The evaluation of well log trace data using log analysis process algorithms. |
|
POSC |
epicentre 2.2 |
current |
materials balance analysis |
Epicentre subtype activity |
The analysis of the behavior of a reservoir based upon a mass or volume balance which states that since the volume of a reservoir is (nearly) constant, the algebraic sum of the volume changes or the reservoir fluid phases must be zero. |
|
POSC |
epicentre 2.2 |
current |
materials characterization |
Epicentre subtype activity |
The activity of describing or measuring the physical, chemical, structural, and compositional properties of materials. |
|
POSC |
epicentre 2.2 |
current |
fluid analysis |
Epicentre subtype activity |
The activity of characterizing the quantitative characteristics of fluid materials. |
materials characterization |
POSC |
epicentre 2.2 |
current |
mud analysis |
Epicentre subtype activity |
The activity of characterizing the quantitative characteristics of the drilling fluid. |
fluid analysis |
POSC |
epicentre 2.2 |
current |
lithologic description |
Epicentre subtype activity |
The activity of characterizing the qualitative properties of a rock, such as the evaluation of hydrocarbon shows, sedimentary facies types, fossil abundance. |
geoscience interpretation |
POSC |
epicentre 2.2 |
current |
lithologic analysis |
Epicentre subtype activity |
The activity of characterizing the qualitative properties of rock, such as the evaluation of hydrocarbon shows, sedimentary facies types, fossil abundance, etc. |
materials characterization |
POSC |
epicentre 2.2.3 |
current |
rock analysis |
Epicentre subtype activity |
The activity of determining the physical and chemical characteristics of a rock material, typically throgh analytical techniques. |
materials characterization |
POSC |
epicentre 2.2 |
current |
materials processing |
Epicentre subtype activity |
The activity of changing the state of a material through physical and chemical processes. |
|
POSC |
epicentre 2.2 |
current |
fluid processing |
Epicentre subtype activity |
The activity of changing the characteristics of a fluid, through application of physical and chemical processes. Examples include: separation by distillation, chromatography, etc. |
materials processing |
POSC |
epicentre 2.2 |
current |
rock processing |
Epicentre subtype activity |
The activity of preserving and preparing rock material for storage or analysis, such as, extracting internal fluids, cleaning, drying, injecting a fluid into the pore space, coating in metal or carbon, staining for minerals, etc. |
materials processing |
POSC |
epicentre 2.2 |
current |
positioning measurement activity |
Epicentre subtype activity |
An activity (measurement, processing, or both) associated with the determination of the position of points. This may involve a simple measurement between tow points or it may involve a network of observations between points of known location and/or moving points with a known relative geometry between them (e.g., a marine seismic spread). The processing of the raw information may be performed as part of the measurement or may be another activity. |
|
POSC |
epicentre 2.2 |
current |
process application for permit |
Epicentre subtype activity |
The activity of processing an application for permit to create a permit specification. |
|
POSC |
epicentre 2.2 |
current |
production activity |
Epicentre subtype activity |
The activity that is performed for a producing object. |
|
POSC |
epicentre 2.2 |
current |
decline analysis |
Epicentre subtype activity |
The activity of analyzing the rate time behavior of the performance history for the purpose of evaluating reservoir characterisitcs, to estimate future recoverable reserves, and to study the rate of production decline from producing objects. |
production activity |
POSC |
epicentre 2.2 |
current |
production allocation |
Epicentre subtype activity |
The process of determining the allocation factors and prorated shares of production or injection based upon specified measurements in the field. |
production activity |
POSC |
epicentre 2.2 |
current |
production reporting |
Epicentre subtype activity |
The process of collecting production statistics of producing objects and providing them in a coherent form, such as a table or graph. |
production activity |
POSC |
epicentre 2.2 |
current |
render document |
Epicentre subtype activity |
The activity of translating the logical specifications of a document into printing or plotting instructions, and rendering those instructions as hardcopy or electronic documents. |
|
POSC |
epicentre 2.2 |
current |
hardcopy rendering |
Epicentre subtype activity |
The activity of rendering a document or document specification into a hardcopy form, such as on paper, film, book, etc. |
render document |
POSC |
epicentre 2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
electronic rendering |
Epicentre subtype activity |
The activity of translating the logical specifications of a document into printing or plotting instructions, and rendering into electronic form, such as a postscript file or a graphic metafile. |
render document |
POSC |
epicentre 2.2 |
current |
reserves category change |
Epicentre subtype activity |
Changes in the net quantities of proved reserves. These changes describe the re-classification of proved reserves from one category to another, possibly due to a change in the recovery process being utilized. |
|
POSC |
epicentre 2.2 |
current |
reserves evaluation |
Epicentre subtype activity |
The activity of developing an estimate or reserves. |
|
POSC |
epicentre 2.2 |
current |
reservoir simulation |
Epicentre subtype activity |
The process of simulating the behavior of fluid flow in underground reservoirs using finite difference or finite element algorithms. |
|
POSC |
epicentre 2.2 |
current |
reservoir simulation postprocessing |
Epicentre subtype activity |
The activity of filtering, interpreting, and presenting the results of a series of time step calculations from a reservoir simulation. |
reservoir simulation |
POSC |
epicentre 2.2 |
current |
reservoir simulation preprocessing |
Epicentre subtype activity |
The activity of setting up and initializing the properties and coefficients used in the series of time step calculations in a reservoir simulation. This includes data input and modification. |
reservoir simulation |
POSC |
epicentre 2.2 |
current |
reservoir simulation time step |
Epicentre subtype activity |
The activity of solving a set of reservoir simulation equations over a finite time interval. The series of time steps in a reservoir simulation comprise the calculational phase of the simulation activity. |
reservoir simulation |
POSC |
epicentre 2.2 |
current |
sample acquisition |
Epicentre subtype activity |
The activity which describes the acquisition or collection of an item of material. |
|
POSC |
epicentre 2.2 |
current |
fluid sample acquisition |
Epicentre subtype activity |
The activity by which a facility such as well is sampled for fluids. |
sample acquisition |
POSC |
epicentre 2.2 |
current |
bottomhole fluid sampling |
Epicentre subtype activity |
Capturing a sample of reservoir fluid at or near the producing formation under stabilized operating conditions. |
fluid sample acquisition |
POSC |
epicentre 2.2 |
current |
rock sample acquisition |
Epicentre subtype activity |
The activity of collecting a rock sample via extraction from an existing item of material. Examples include coring, core plugging, rock thin-sectioning, fluid sampling. |
sample acquisition |
POSC |
epicentre 2.2 |
current |
seismic acquisition activity |
Epicentre subtype activity |
An activity associated with acquiring seismic trace data, for example, permitting, shot hole drilling, surveying/positioning, recording, navigation processing, overseeing, etc. |
|
POSC |
epicentre 2.2 |
current |
seismic processing activity |
Epicentre subtype activity |
An activity associated with the processing of seismic data. |
|
POSC |
epicentre 2.2 |
current |
surface geologic survey |
Epicentre subtype activity |
An activity which systematically describes and evaluates the characteristics of materials, particularly rock materials, found at or near the earth surface. |
|
POSC |
epicentre 2.2 |
current |
surface geochemical survey |
Epicentre subtype activity |
A survey of surface soils and fluids for geochemical information. |
surface geologic survey |
POSC |
epicentre 2.2 |
current |
valve close event |
Epicentre subtype activity |
An activity during a well test in which the test valve is closed, thereby ending a flow period. This activity is practically instantaneous, but may occur over a significant enough duration to influence the pressure and rate measurements in some tests. |
|
POSC |
epicentre 2.2 |
current |
valve open event |
Epicentre subtype activity |
An activity during a well test in which the test valve is opened. thereby starting a flow period. This activity is practically instantaneous, but may occur over a significant enough duration to influence the pressure and rate measurements in some tests. |
|
POSC |
epicentre 2.2 |
current |
well activity |
Epicentre subtype activity |
An activity which utilizes a well facility. |
|
POSC |
epicentre 2.2 |
current |
spud well |
Epicentre subtype activity |
The activity of beginning the drilling. In particular, when the drilling bit penetrates the surface using a drilling rig capable of drilling the well to the authorized total depth. |
well activity |
POSC |
epicentre 2.2 |
current |
well log acquisition activity |
Epicentre subtype activity |
An activity associated with acquiring well log trace data. |
well activity |
POSC |
epicentre 2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
logging job |
Epicentre subtype activity |
The general activity of logging a well. This activity may correspond to the set of operations performed under a single contract or invoice. |
well log acquisition activity |
POSC |
epicentre 2.2 |
current |
well job |
Epicentre subtype activity |
Operations performed on a well by a business associate. Jobs may include numerous subsidiary activities, such as drilling, rig maintenance, well completion, wireline logging. |
well activity |
POSC |
epicentre 2.2 |
current |
well completion activity |
Epicentre subtype activity |
An activity conducted in or on a well completion. |
|
POSC |
epicentre 2.2 |
current |
well test activity |
Epicentre subtype activity |
The measurement of any factor or factors relating to production or injection of fluids from or into a well's wellbore for a given length of time for an established set of conditions to assist in prediction of production or injection capability. This is intended to cover the total well test activity and events and measurements during the activity. |
well completion activity |
POSC |
epicentre 3.0 |
current |
well completion stimulation |
Epicentre subtype activity |
An activity conducted through a well completion to improve the connectivity of the wellbore to the reservoir. |
well completion activity |
POSC |
epicentre 2.2 |
current |
well completion workover |
Epicentre subtype activity |
An activity of re-equipping or re-configuring a well completion. This may be remedial (to rectify a malfunction or design flaw) or an enhancement. |
well completion activity |
POSC |
epicentre 2.2 |
current |
well performance test |
Epicentre subtype activity |
A well test that is conducted for the primary purpose of determining the flow rates of fluid being produced from a well. These are the routine tests in which the fluids from a well are diverted into test separators or tanks so that the performance of the tested well can be isolated and measured. Typically, these tests are conducted for detailed monitoring before and after a workover, when rates from a well appear to be abnormal, or when gathering performance data to be used in production allocation. |
well test activity |
POSC |
epicentre 2.2 |
current |
well potential test |
Epicentre subtype activity |
A well test that indicates the maximum rate at which fluids may be injected into or produced from a well. A potential test may be conducted over a series of rates with the intention of extrapolating to a maximum rate, or conducted with all surface control valves wide open to measure the maximum rate. |
well test activity |
POSC |
epicentre 2.2 |
current |
well deliverability test |
Epicentre subtype activity |
A well test conducted to determine the ability of a well to flow at one or more bottomhole pressures, usually for the purpose of determining the maximum producing rate for the well. |
well test activity |
POSC |
epicentre 2.2 |
current |
well four point test |
Epicentre subtype activity |
A well deliverability test for gas wells in which the wellhead pressures and produced rates are measured at stabilized conditions, usually with a fixed choke. The test consists of four periods of monotonically increasing or decreasing flow rate. |
well deliverability test |
POSC |
epicentre 2.2 |
current |
well isochronal test |
Epicentre subtype activity |
A well deliverability test for gas wells in which a well is flowed at constant rate and shut-in until an (almost) unchanging pressure is obtained, then repeating the test at higher rates for the same period of flowing time. Each shut-in period is continued until the same pressure is reached. The final flow period is extended until stabilized conditions are obtained, if possible. |
well deliverability test |
POSC |
epicentre 2.2 |
current |
well modified isochronal test |
Epicentre subtype activity |
A well deliverability test for gas wells in which a well is alternately flowed and shut-in for fixed periods of time and increasing flow rates. The final flow rate period is extended until stabilized conditions are obtained, if possible. |
well deliverability test |
POSC |
epicentre 2.2 |
current |
well open flow test |
Epicentre subtype activity |
A well deliverability test in which a well is flowed at the maximum rate possible, i.e., all valves and chokes wide open. |
well deliverability test |
POSC |
epicentre 2.2 |
current |
well step rate test |
Epicentre subtype activity |
A well potential test for injection wells used to establish the formation fracture pressure. During this test, fluid is injected at a series of increasing rates, usually of a fixed time period, and the injection pressure at each rate measured. From a plot of injection rate versus injection pressure, a break in the trend defines the formation fracturing pressure. |
well potential test |
POSC |
epicentre 2.2 |
current |
well test open period |
Epicentre subtype activity |
An interval of time during a well test in which the flow of fluids is recorded. This period may be a part of the well test or prior to the well test. Also, it may be a real or calculated period of time. |
well test activity |
POSC |
epicentre 2.2 |
current |
well test flow period |
Epicentre subtype activity |
An interval of time during a well test when fluids are allowed to flow into collection chambers, drill pipe or to the surface. This does not include the period of time in which afterflow is observed in traditional buildup tests. |
well test activity |
POSC |
epicentre 2.2 |
current |
well test horner flow period |
Epicentre subtype activity |
An interval of time preceding a well test for which the average flow rate at the time of the well test is considered to be effective. Usually, this period is determined as the cumulative production of the current production period divided by the average flow rate prior to the test for the most significant fluid component for the well (oil for oil well, gas for gas well, injected water for water injection well, etc.) The current production period is the period of time since the last significant interruption of operations that would have allowed pressures in the drainage area of the well to stabilize. |
well test activity |
POSC |
epicentre 2.2 |
current |
well test injection period |
Epicentre subtype activity |
An interval of time during a well test during which fluids are injected into a well. |
well test activity |
POSC |
epicentre 2.2 |
current |
well test stabilized flow period |
Epicentre subtype activity |
An interval of time during a well test in which the flowing rate of fluids is more or less constant. Typically, this flow is controlled by a choke of constant size or against a fixed back pressure. |
well test activity |
POSC |
epicentre 2.2 |
current |
well test shut in period |
Epicentre subtype activity |
An interval of time during a well test in which the flow of fluids has been terminated. Based upon the equipment used to terminate the flow, this can be at either the surface or bottomhole. This does not include the period of time in which fluid is allowed to accumulate within the drill pipe during a closed chamber DST or in the collection chambers of a wireline formation test. This does include the period of time in which "afterflow" is observed in traditional buildup tests. |
well completion activity |
POSC |
epicentre 2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
well transient pressure test |
Epicentre subtype activity |
A procedure carried out in a well for the purpose of deriving information about the characteristics of the earth surrounding the interval being tested. During this procedure, measurements are made relating to the production or injection of fluids from or into a well for a given length of time for an established set of conditions. These measurements are made to assist in the estimation or prediction of production or injection capability. A well transient pressure test usually consists of causing rate stabilizations and fluctuations in a controlled manner, including terminating flow, and monitoring the variation in pressures that result. These activities may occur in a single well or in multiple wells simultaneously. |
well test activity |
POSC |
epicentre 2.2 |
current |
multi well transient pressure test |
Epicentre subtype activity |
A well transient pressure test utilizing multiple wells. During this test, rate fluctuations and stabilizations are typically conducted on one well and measurements of pressure and rate (as appropriate) are made in the first well and at one or more nearby wells. The purpose of multi-well transient pressure tests is to establish and quantify characteristics governing flow of fluids between wells. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
multi well pulse test |
Epicentre subtype activity |
A well transient pressure test in which a rapid, controlled pattern of flow (injection or production) and shut-in periods are repeated at an active well and the pressure response measured at one or more observation wells. The purpose of the test is to determine if two or more wells are in hydraulic communication and, if so, to estimate formation properties in the vicinity of the tested wells. |
multi well transient pressure test |
POSC |
epicentre 2.2 |
current |
well interference test |
Epicentre subtype activity |
A well transient presure test in which flow rate fluctuations and stabilizations in one or more active wells attempt to create pressure responses measured in one or more observation wells. The purpose of the test is to determine if two or more wells are in hydraulic communication and, if so, to estimate formation properties in the vicinity of the tested wells. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
single well transient pressure test |
Epicentre subtype activity |
A well transient pressure test conducted in a single well. During this test, rate fluctuations and stabilizations and the measurements of rates and pressures all take place within a single well. Also, tests are typically conducted for a single well completion in a well, but multiple well completions in a well may be tested as part of a single well transient pressure test. The purpose of single well transient pressure tests is to establish and quantify characteristics governing the flow of fluid in the immediate vicinity of the tested well or within its particular drainage radius. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
reservoir limits test |
Epicentre subtype activity |
A well transient pressure test conducted specifically to determine the volume of the reservoir drainage region connected to the tested well. Typically, it involves of an extended flow period during which pseudo-steady state flow conditions are established, that is, no-flow boundary effects are strongly felt. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
well buildup test |
Epicentre subtype activity |
A well transient pressure test in which, following a period of stabilized flow, a producing well is shut-in and measurements of pressure response to the termination of flow are made. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
well drawdown test |
Epicentre subtype activity |
A well transient pressure test in which a shut-in well is opened to flow at a near constant rate and during which measurements of pressure response to the flow are made. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
well falloff test |
Epicentre subtype activity |
A well transient pressure test in which, following a period of fluid injection at a stabilized rate, an injection well is shut in and the response of pressure to the flow rate change is measured. This is analogous to a well buildup test excepting fluids are being injected into the well rather than produced from the well prior to shut-in. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
well injection buildup test |
Epicentre subtype activity |
A well transient pressure test in which, after a period of no injection, fluids are injected into a well at a constant rate and measurements of the response in pressure are made. This test is analogous to a well drawdown test excepting that fluids are injected rather than produced at a constant rate. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
well multi rate test |
Epicentre subtype activity |
A well transient pressure test in which the pressure response is measured to changes in flowing fluid rate. One or more rate changes may be made during this test, as required. Typically, the results of this test is analyzed using a more rigorous algorithm based upon the principle of superposition. |
well transient pressure test |
POSC |
epicentre 2.2 |
current |
well pattern analysis |
Epicentre subtype activity |
The activity of evaluating the performance of well patterns, including the determination of completion participation factors, calculating fluid in - fluid out rations, and pattern balancing. |
|
POSC |
epicentre 2.2 |
current |
well test analysis |
Epicentre subtype activity |
The activity of interpreting the data acquired during a well test. This activity generally results in the generation of characteristics for the well, well completion or well completion segment and/or characteristics of the region within the radius of investigation of the well test. |
|
POSC |
epicentre 2.2 |
current |
well test measurement |
Epicentre subtype activity |
An activity, usually part of a well test, in which measurements are made. These measurements include flow rates and pressures. |
|
POSC |
epicentre 2.2 |
current |
well test pressure measurement |
Epicentre subtype activity |
An activity in which pressures are measured during a well test. These measurements may result in single values of pressure or pressure histories. Based upon the equipment used for the measurements, these pressures may be surface or downhole, etc. |
well test measurement |
POSC |
epicentre 2.2 |
current |
well test rate measurement |
Epicentre subtype activity |
An activity in which the flow rate of fluids are measured during a well test. These measurements may result in cumulative volumes produced, average rates or rate histories. |
well test measurement |
POSC |
epicentre 2.2 |
current |
well test temperature measurement |
Epicentre subtype activity |
An activity in which temperatures are measured during a well test. These measurements may result in single values of temperature, in temperature profiles, or temperature histories. |
well test measurement |
POSC |
epicentre 2.2 |
current |
wellbore activity |
Epicentre subtype activity |
An activity which utilizes a wellbore facility. |
|
POSC |
epicentre 2.2 |
current |
borehole generation run |
Epicentre subtype activity |
A borehole creating activity corresponding to a single trip of the bottom hole assembly. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
cement casing string |
Epicentre subtype activity |
The activity of introducing cement slurry within a wellbore for the purpose of installation of steel casing. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
drill borehole |
Epicentre subtype activity |
The activity of boring a hole in the earth. The product of this work is the construction of a wellbore. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
complete a well |
Epicentre subtype activity |
For an oil or gas well, the installation of permanent equipment for the production of oil or gas. For a dry hole, the abandonment of thw well. For a service well, equiping the well to perform the sevice for which it is intended. |
well activity |
POSC |
epicentre 2.2 |
current |
drillstem test |
Epicentre subtype activity |
A test through the drillstem taken by means of special testing equipment attached to the drillstem to determine if fluid components in commercial quantities have been encountered in a wellbore. Although the drillstem test is a temporary well completion, it is not necessary to set casing or to remove the drilling fluid from the wellbore to conduct the test. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
install gravel pack |
Epicentre subtype activity |
The activity of placing a uniform, graded, commercial silica sand in a wellbore and perforation tunnels for the purpose of mechanically retaining formation sands. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
install plug |
Epicentre subtype activity |
Setting of a mechanical plug across an interval of a wellbore. A plug may be permanent or temporary. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
production logging |
Epicentre subtype activity |
The activity of running a well log in a wellbore under dynamic or static conditions to measure the flow characteristics over depth intervals. Production logs are run to look for casing, tubing or packer leaks, evaluate contributions of different zones, map where injected fluids are going, etc. Services and devices include continuous flowmeter, packer flowmeter, gradiomanometer, manometer, densimeter, water cut meter, thermometer, radioactive tracer logs, temperature logs, calipers, casing collar locator, fluid sampler, water entry survey, etc. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
remove plug |
Epicentre subtype activity |
The activity of de-installing a plug from a wellbore. This may involve detaching a retrievable bridge plug or milling a permanent plug. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
set packer |
Epicentre subtype activity |
Installing a packer in a wellbore. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
shoot perforation |
Epicentre subtype activity |
An activity that manufactures holes in the tubulars, cement sheath, and rock material lining a borehole. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
squeeze wellbore interval |
Epicentre subtype activity |
The activity of squeezing cement or another material into open perforations or leaks in a wellbore, thereby closing fluid communication between the wellbore and rock formation. The activity of forcing cement or other plugging materials into leaks or perforations in a wellbore for the purpose of shutting off fluid flow. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
well static pressure test |
Epicentre subtype activity |
A procedure carried out in a well at static, non-flowing conditions for the purpose of determining the producing and static bottom hole pressures and the producing rate efficiency of the well. In this type of well testing, measurements are made of the fluid column and the pressure at the well completion or a datum is then calculated or interpolated. Common measurement devices include surface pressure gauges and acoustic liquid level instrument, or a pressure gauge lowered into the well on a wireline. |
|
POSC |
epicentre 2.2 |
current |
wellbore directional survey |
Epicentre subtype activity |
A location survey in a wellbore. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
wellbore trip |
Epicentre subtype activity |
The activity of utilizing equipment within a wellbore. Trips may represent bit trips, well logging trips, fishing trips, etc. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
wireline formation test |
Epicentre subtype activity |
A well testing activity in which the testing tools are deployed in a well using a wireline or cable. Repeat formation test tools are used to conduct well tests of this type. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
hydrostatic pressure measurement |
Epicentre subtype activity |
A wireline formation test that measures the hydrostatic pressure at the appropriate depth. The hydrostatic pressure is usually considered to be the pressure due to the drilling fluid. |
wireline formation test |
POSC |
epicentre 2.2 |
current |
formation pressure measurement |
Epicentre subtype activity |
A wireline formation test that measure the pressure of the formation at the appropriate depth. |
wireline formation test |
POSC |
epicentre 2.2 |
current |
wireline logging pass |
Epicentre subtype activity |
The activity of recording petrophysical properties along a length of a wellbore path using wireline logging equipment. |
wellbore activity |
POSC |
epicentre 2.2 |
current |
well test period |
Epicentre subtype activity |
Part of a single or multi well transient pressure test, or well deliverability test. |
well transient pressure test |
POSC |
epicentre 2.2.3 |
current |
incident of noncompliance |
Epicentre subtype activity |
An event, such as an accident or violation, that has been noted as being noncompliant with active regulations. |
|
POSC |
epicentre 2.2.3 |
current |
other activity |
Epicentre subtype activity |
An activity which is not defined by any other specific activity subtype. An activity is something happening that brings about a change in state to the perceived environment. |
|
POSC |
epicentre 2.2.3 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
reservoir simulation case |
Epicentre subtype activity |
This activity is the execution of a reservoir simulation application that attempts to progress the reservoir simulation through time (also known as a run). |
reservoir simulation |
POSC |
epicentre 2.2.3 |
current |
drilling kick |
Epicentre subtype activity |
The event which results in the unplanned entry of fluids from a formation entering a wellbore during drilling operations. |
wellbore activity |
POSC |
epicentre 2.2.3 |
current |
other wellbore activity |
Epicentre subtype activity |
A non-specific activity that takes place in a wellbore. |
wellbore activity |
POSC |
epicentre 2.2.3 |
current |
wellbore integrity test |
Epicentre subtype activity |
A test to establish the integrity of the mechanical wellbore components or subsurface rock segments under pressure. During this test, well operation fluids are pumped at a series of increasing rates, usually over a fixed period of time, and the resulting pressures at each rate are measured. Examples of wellbore integrity tests include formation integrity tests, leak-off tests, casing shoe tests and cement integrity tests. |
wellbore activity |
POSC |
epicentre 2.2.3 |
current |
exploration |
field life cycle |
The portion before a discovery. |
|
POSC |
epicentre 2.1 |
current |
exploitation |
field life cycle |
The portion after a discovery, but before the prospect has been declared productive. |
|
POSC |
epicentre 2.1 |
current |
production |
field life cycle |
The portion after a field has been declared economic until the field is ready for abandonment. |
|
POSC |
epicentre 2.1 |
current |
abandonment |
field life cycle |
The portion after a field has been declared unproductive, and is ready to be closed down or sold. |
|
POSC |
epicentre 2.1 |
current |
acceleration method |
Epicentre subtype activity |
utilizes the angles at the top and bottom of the course length and from these generates a curve on the assumption that the measured angles change smoothly from top to bottom of the measured course as though under the influence of a constant force of an acceleration. The results are the same as balanced tangential, trapezoidal, and vector averaging. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
average angle method |
Epicentre subtype activity |
Uses the angles measured at both the top and bottom of the course length in such a fashion that the average of the two sets of measured angles is the assumed inclination and direction. The borehole survey is then calculated tangentially using these averaged angles over the course length. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
balanced tangential method |
Epicentre subtype activity |
Uses the inclination and direction angles at the top and bottom of the course length in a manner so as to tangentially balance the two sets of measured angles over the course length. Results obtained are the same as the acceleration, trapezoidal, and vector averaging methods. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
circular arc method |
Epicentre subtype activity |
Uses both sets of measured angles associated with each course length to recreate the borehole path as a sequence of small circular arcs constrained by the measured angles to pass through the end points with inclination and direction angles as measured. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
mercury method |
Epicentre subtype activity |
A combination of the tangential and balanced tangential methods so as to treat that portion of the measured course defined by the length of the measuring toos as a straight line (tangentially) and the remainder of the measured course trapezoidally. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
minimum curvature method |
Epicentre subtype activity |
Uses the sets of angles measured at the top and bottom of the course length to establish coordinate velocities through which a space curve (which represents the calculated path of the borehole) passes in a manner that minimizes its total curvature. |
|
POSC |
epicentre 2.2.1 |
current |
mud resistivity calculation |
Epicentre subtype activity |
The estimation of the resistivity of the drilling mud at a given temperature based on known, measurable properties. |
mud analysis |
POSC |
epicentre 2.2.1 |
current |
mud resistivity measurement |
Epicentre subtype activity |
The activity of measuring the resistivity of the drilling mud at a given temperature. This is usually done using a mud cup; an electrically insulated cylinder of know dimensions having embedded electrodes and filled with the mud sample. A current is passed between the electrodes allowing the resistivity of the mud to be determined. |
mud analysis |
POSC |
epicentre 2.2.1 |
current |
mud cake resistivity calculation |
Epicentre subtype activity |
The estimation of the resistivity of the drilling mud cake (sometimes known as the filter cake) at a given temperature based on known, measurable properties. |
mud analysis |
POSC |
epicentre 2.2.1 |
current |
mud cake resistivity measurement |
Epicentre subtype activity |
The activity of measuring the resistivity of the drilling mud cake (sometimes known as the filter cake) at a given temperature. |
mud analysis |
POSC |
epicentre 2.2.1 |
current |
mud filtrate resistivity calculation |
Epicentre subtype activity |
The estimation of the resistivity of the filtrate portion of the drilling mud at a given temperature based on known, measurable properties. |
mud analysis |
POSC |
epicentre 2.2.1 |
current |
mud filtrate resistivity measurement |
Epicentre subtype activity |
The activity of measuring the resistivity of the filtrate portion of the drilling mud at a given temperature. |
mud analysis |
POSC |
epicentre 2.2.1 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
quadratic method |
Epicentre subtype activity |
A method in math modeling considering the borehole as a curve; the projections into three orthogonal planes are quadratic functions |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
radius of curvature method |
Epicentre subtype activity |
Uses the sets of angles measured at the top and bottom of the course length to generate a space curve (representing the borehole path) that has the shape of a spherical arc passing through the measured angles at both the upper and lower ends of the measured course. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
Simpsons rule method |
Epicentre subtype activity |
Uses as many measured angle values as are available (a minimum of three sets) to recreate the borehole path through Simpsons Rule for numeric integration, which approximates by passing a parabola through three points. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
tangential method |
Epicentre subtype activity |
Uses only the inclination and direction angles measured at the lower end of the course length. The borehole path is assumed to be tangent to these angles through the course. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
trapezoidal method |
Epicentre subtype activity |
Uses the measured inclination and direction angles at both ends of the measured course in a fashion that recreates the borehole path. This is done by a sequence of trapezoidal integraion segments using the measured angles as constraints on the integral over the measured course. Results obtained are essentially the same as acceleration, balanced tangential, and vector averaging methods. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
vector averaging method |
Epicentre subtype activity |
Uses inclination and direction measurements at both ends of the measured course to establish vector space direction. It is then assumed that each of these two vectors is projected for one-half the course length in creating the borehole path. Each half course length segment can be treated tangentially. Results obtained are essentially the same as the acceleration, balanced tangential, and trapezoidal methods. |
directional survey analysis |
POSC |
epicentre 2.2.1 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
|
naming _system .identifier |
|
activity _class .identifier |
|
ref _version .identifier |
|
activity type |
WIME 1.0 |
Superclass of all activity types. |
|
POSC |
epicentre 2.2.2 |
current |
adjust anchor tension |
WIME 1.0 |
Adjust anchor cables or chains. |
activity type |
POSC |
epicentre 2.2.2 |
current |
assemble equipment |
WIME 1.0 |
Put together pieces of equipment required for a task. |
activity type |
POSC |
epicentre 2.2.2 |
current |
assembly job |
WIME 1.0 |
Rig up and down surface equipment, and execute one or more assembly run jobs. |
activity type |
POSC |
epicentre 2.2.2 |
current |
assembly run job |
WIME 1.0 |
Activities involving tripping in a downhole assembly (including bottom hole assemblies) and returning it to the surface. Includes time to pick up and lay down assembly. |
activity type |
POSC |
epicentre 2.2.2 |
current |
avoidable wait |
WIME 1.0 |
Unable to proceed as desired because of avoidable circumstance It can occur at any time - i.e., it can be a normal part of any activity type. |
activity type |
POSC |
epicentre 2.2.2 |
current |
back off pipe |
WIME 1.0 |
Separate a string of equipment (normally drillpipe or bottom hole assembly), at a connection, into two parts by torsion, one of which is left in wellbore. Raise pipe with tension and left hand (back-off) torque. The connection threads are not destroyed Note distinction between this activity and "cut tubular downhole" Categorise into - Blind back off with no explosives to release threaded joint - Controlled back off, with explosives and torsion. |
activity type |
POSC |
epicentre 2.2.2 |
current |
backream |
WIME 1.0 |
Move equipment along wellbore path towards surface, while circulating with rotation. It is not deemed necessary to record when rotating occurs Backreaming can significantly increase the ECD (equivalent circulating density). |
activity type |
POSC |
epicentre 2.2.2 |
current |
bail |
WIME 1.0 |
Remove sand, debris, deposits or other material from wellbore with a bailer. |
activity type |
POSC |
epicentre 2.2.2 |
current |
ballast rig |
WIME 1.0 |
Ballast and adjust rig. Flood or pump out air filled compartments on a floating rig/platform. |
activity type |
POSC |
epicentre 2.2.2 |
current |
break and lay down tubular |
WIME 1.0 |
Pick up stand, break up into singles and lay down. Includes drill pipe and snubbing. Includes heavyweight drill pipe and collars. Excludes casing, production tubing, coiled tubing, wireline. Includes BHA if the BHA is racked back in derrick and then laid down. |
activity type |
POSC |
epicentre 2.2.2 |
current |
broach |
WIME 1.0 |
Run a broach through a restriction in the wellbore repeatedly Restriction could be a scaled up nipple, a ceramic disc, etc. |
activity type |
POSC |
epicentre 2.2.2 |
current |
brush |
WIME 1.0 |
Run a brush through the wellbore to a specified depth repeatedly Most often used to clean tubing nipples. Run on wireline. |
activity type |
POSC |
epicentre 2.2.2 |
current |
build up test job |
WIME 1.0 |
Test in conjunction with Production logging. Transient pressure monitoring downhole after well has been shut in. |
activity type |
POSC |
epicentre 2.2.2 |
current |
catch fish |
WIME 1.0 |
Attempting to engage fish using fishing tools including circulate with junk basket to recover junk in hole. |
activity type |
POSC |
epicentre 2.2.2 |
current |
cement plug assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
cement plug job |
WIME 1.0 |
Circulate, mix and pump spacer and slurry. Displace cement as a cement plug in casing, liner and/or open hole. Alternatively dump cement using cement dump bailer. |
activity type |
POSC |
epicentre 2.2.2 |
current |
cement stage assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
cement stage job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
cement top job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
cement top job assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
cement tubular job |
WIME 1.0 |
Cement tubular in the wellbore. |
activity type |
POSC |
epicentre 2.2.2 |
current |
cementing assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
cementing job |
WIME 1.0 |
Pumping cement into the well, generally classified into primary cementing and secondary cementing. In primary cementing, cement is pumped between a casing and either the open hole or another casing (liner, tie back), to achieve zonal isolation. Secondary cementing includes cement plug and squeeze cementing, where cement is pumped under pressure at some point of the well to cause seals at the point of the squeeze, e.g. to isolate a producing formation, seal off water (perforation squeeze) or repair casing leaks (remedial cementing). Includes time to test casing to assure seal, if done in connection with bumping plug. Top job on surface casing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
change out BOP ram |
WIME 1.0 |
Change rams in BOP prior to or after running/pulling tubular. The BOP is the main equipment being acted on - the ram is the component being replaced. |
activity type |
POSC |
epicentre 2.2.2 |
current |
check |
WIME 1.0 |
Perform an inspection or test and record results of superficial analysis which may alter the critical path and subsequent operations Other sub-types may be - CO2 check - gas leak check - diesel leak check - pollution check - electrical system check - structural condition check |
activity type |
POSC |
epicentre 2.2.2 |
current |
check for wellbore influx or loss |
WIME 1.0 |
Check for wellbore influx or losses. Monitor pressure and/or volume produced/lost over time, and evaluate stability of well. |
activity type |
POSC |
epicentre 2.2.2 |
current |
chemical treatment job |
WIME 1.0 |
Pump appropriate fluid into wellbore or formation without fracturing the formation. Includes acid wash, scale/H2S inhibition, lubrication etc. |
activity type |
POSC |
epicentre 2.2.2 |
current |
circulate |
WIME 1.0 |
Pump around a wellbore with returns downhole or on surface. Includes circulation after a drilling break. Does not include any time e.g. evaluating samples This activity typically occurs in parallel with others Particularly interested in measuring time variant properties of the circulated fluid eg. Density, sand content, turbidity. |
activity type |
POSC |
epicentre 2.2.2 |
current |
clean equipment |
WIME 1.0 |
Remove contamination from a piece of equipment. Takes place on the surface. Includes cleaning surface equipment on the surface, or cleaning bottom hole assembly on the surface. Does not including washing over equipment in the wellbore Note this is distinct from repair or maintain equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
clean rig circulating system |
WIME 1.0 |
Clean fluid circulating system, remove gumbo and/or fluid. Clean surface equipment prior to change out active fluid system. Clean tanks or pits, generally those used as temporary bulk storage of a fluid prior to pumping down hole. |
activity type |
POSC |
epicentre 2.2.2 |
current |
clean wellbore |
WIME 1.0 |
Remove sand, debris, deposits or other material from wellbore. Uses jets The subsequent operation may include "production" Categories may include - broaching - bailing - brushing - junk basket - sand washing - scale milling - cement scraping |
activity type |
POSC |
epicentre 2.2.2 |
current |
coring assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
coring job |
WIME 1.0 |
Cover the activities from start picking up tubular for coring assembly. Cut the core, recover and handle core at surface. Assembly is racked back or laid down. |
activity type |
POSC |
epicentre 2.2.2 |
current |
cure lost circulation |
WIME 1.0 |
Condition fluid and wellbore to regain circulation, i.e. work pipe, pump pills, circulate. |
activity type |
POSC |
epicentre 2.2.2 |
current |
cut core |
WIME 1.0 |
Cut core of formation material. This is not sidewall coring. |
activity type |
POSC |
epicentre 2.2.2 |
current |
cut tubular downhole |
WIME 1.0 |
Cut tubular in wellbore. There is no torsion, but there may be some pulling. The cut is not normally at a connection - if it is performed at a connection, the connection is destroyed Categorise by method - mechanical - explosive - chemical When cutting, measure - min, max, average and variance of hookload, torque, rpm, flow rate, pressure - total mass recovered - top/bottom depth recovered |
activity type |
POSC |
epicentre 2.2.2 |
current |
cut tubular on surface |
WIME 1.0 |
Includes preparation needed to cut and/or machine tubular on surface. Clear rig floor for next operation. This does not include downhole casing cuts using a BHA. |
activity type |
POSC |
epicentre 2.2.2 |
current |
demobilize rig job |
WIME 1.0 |
Rig down operation and movement of mobile platform to a specified location. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
deploy in hole |
WIME 1.0 |
Pick up bottom hole assembly components and assemble against shut in well head pressure This method is most often used for guns. |
activity type |
POSC |
epicentre 2.2.2 |
current |
disassemble equipment |
WIME 1.0 |
Take apart pieces of equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
displace |
WIME 1.0 |
Displace fluid system to a predetermined position. Either partial or entire wellbore displaced Material involved: pill, slug, wash, sweep, new fluid (e.g. new mud, acid, diesel etc.) |
activity type |
POSC |
epicentre 2.2.2 |
current |
displace slurry |
WIME 1.0 |
Displace a fluid system to a predetermined position. |
activity type |
POSC |
epicentre 2.2.2 |
current |
diving job |
WIME 1.0 |
Use manned or unmanned subsea equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
draw down test job |
WIME 1.0 |
To do with checking the casing. Test in conjunction with Production logging. Pressure monitoring downhole while well is producing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
dress tubular downhole |
WIME 1.0 |
Put a finish on a tubular, including tie back sleeves. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drill |
WIME 1.0 |
Generate new hole. Includes make and break connection. In parallel may be other activities covering MWD/LWD logging and surveying. Excludes coring, hole opening, underreaming, milling, reaming, washing, jetting. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drill cement |
WIME 1.0 |
Drill, wash or ream excess cement in casing/liner or open hole. Does not include drill shoe track. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drill section job |
WIME 1.0 |
A collection of activities and jobs associated with extending a wellbore section. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drill shoe track |
WIME 1.0 |
Shoe track comprises the casing shoe, cement between casing shoe and landing collar/float. May include some cement above the plug/float. May include cleaning out rat hole. May include going into the formation sufficient to perform formation integrity test. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drill wellbore job |
WIME 1.0 |
Covers all activities for all sections of the drilling phase for a well. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drilling assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
drilling job |
WIME 1.0 |
types of drilling: overbalanced (default underbalance - mist - foam with gas - foam - air or gas - aerated liquid - liquid |
activity type |
POSC |
epicentre 2.2.2 |
current |
drillstem test assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
drillstem test job |
WIME 1.0 |
A test through the drillstem taken by means of special testing equipment attached to the drillstem to determine if oil or gas in commercial quantities has been encountered in the wellbore. Because the drillstem test is a temporary well completion, it is not necessary to set casing or to remove drilling fluid from the wellbore to conduct the test. |
activity type |
POSC |
epicentre 2.2.2 |
current |
drive conductor |
WIME 1.0 |
Pick up conductor joints, make it up to a sting and hammer the string in the ground. |
activity type |
POSC |
epicentre 2.2.2 |
current |
dump cement |
WIME 1.0 |
Dump cement on top of a plug or packer with a cement dump bailer, run on wireline, or cement dumped by use of cement stinger. |
activity type |
POSC |
epicentre 2.2.2 |
current |
enlarge hole |
WIME 1.0 |
Mechanically increase diameter of wellbore. |
activity type |
POSC |
epicentre 2.2.2 |
current |
equalise pressure |
WIME 1.0 |
Increase or decrease pressure on one side of a valve or system. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
evaluate |
WIME 1.0 |
Extract or deduce useful information from raw data or other information by an analytical or other process. Includes analysing raw core data, analysing raw wireline or MWD logs, analysing raw deviation survey data, analysing general situation May be caused by some unwanted event, or may be planned. |
activity type |
POSC |
epicentre 2.2.2 |
current |
extend leg |
WIME 1.0 |
Extend a single leg. |
activity type |
POSC |
epicentre 2.2.2 |
current |
extended leak off test job |
WIME 1.0 |
Determine the fracture propagation and annealing pressures for the weakest formation in the exposed section, beyond point of leak off. Continue to inject fluids in a controlled manner beyond leak off. Includes any fluid conditioning The exposed formation (assumed to be a shale) is subjected to surface imposed pressure past the point of initial plastic deformation. Normally a low injection rate is sustained (approximately 0.5 bbl/hr or less) until a fracture is induced and fracture extension is perceived by a return to constant pressure responding to a constant volume rate. The test is not only used to determine the ability of the formation to withstand pressure, but also to determine in-situ minimum and maximum horizontal stresses for well bore stability analysis. |
activity type |
POSC |
epicentre 2.2.2 |
current |
fall off test job |
WIME 1.0 |
Test in conjunction with Production logging. Transient pressure monitoring downhole after the well has been injected. |
activity type |
POSC |
epicentre 2.2.2 |
current |
fill tank or pits |
WIME 1.0 |
Transfers fluid from reserve to active tanks or pits. |
activity type |
POSC |
epicentre 2.2.2 |
current |
fishing assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
fishing job |
WIME 1.0 |
All activities performed to remove undesired foreign object from the wellbore. Includes rigging up and down surface equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
flow test downhole choke job |
WIME 1.0 |
Flow well through downhole choke while monitoring flowing well head pressure and flow rate DHC is normally installed to decrease flowing well head pressure in high gas/oil ratio wells. |
activity type |
POSC |
epicentre 2.2.2 |
current |
flow well |
WIME 1.0 |
Bring under controlled conditions fluids from reservoir to surface. |
activity type |
POSC |
epicentre 2.2.2 |
current |
flush equipment |
WIME 1.0 |
Flush downhole equipment and/or riser with an appropriate fluid using a pump Common fluids used are water or glycol. |
activity type |
POSC |
epicentre 2.2.2 |
current |
formation integrity test job |
WIME 1.0 |
Pressure up casing and open hole to predetermined pressure. Job includes any fluid conditioning The exposed formation (assumed to be a shale) is subjected to surface imposed pressure until a predetermined pressure is reached, or until initial plastic deformation takes place. This is usually performed not to find the limits of the ability to withstand pressure, but only to ensure that the formation will withstand pressures expected. |
activity type |
POSC |
epicentre 2.2.2 |
current |
formation leak off test job |
WIME 1.0 |
Increase pressure in the wellbore and record pressure when fluid loss into formation commences/observed. Job includes any fluid conditioning The exposed formation (assumed to be a shale) is subjected to surface imposed pressure until initial plastic deformation of the formation takes place, as indicated by a non-linear pressure response to injected volume of fluid. |
activity type |
POSC |
epicentre 2.2.2 |
current |
fracturing job |
WIME 1.0 |
Pump appropriate fluid into the formation, with or without proppants, at a downhole pressure higher than the formation fracture pressure. |
activity type |
POSC |
epicentre 2.2.2 |
current |
generate hole |
WIME 1.0 |
Create new or modify existing wellbore. |
activity type |
POSC |
epicentre 2.2.2 |
current |
grease Xmas tree valve |
WIME 1.0 |
Clean and lubricate Xmas tree valves while cycling open/shut. |
activity type |
POSC |
epicentre 2.2.2 |
current |
H2S check |
WIME 1.0 |
Inspect, locate and record H2S concentration of fluid. |
activity type |
POSC |
epicentre 2.2.2 |
current |
handle anchor |
WIME 1.0 |
Activities associated with lowering, adjusting and raising anchors. |
activity type |
POSC |
epicentre 2.2.2 |
current |
handle equipment |
WIME 1.0 |
Activities associated with handling tangible items such as tubulars, downhole tools etc. |
activity type |
POSC |
epicentre 2.2.2 |
current |
handle material |
WIME 1.0 |
Activities associated with handling material items such as fluids, slurries, chemicals, cement. |
activity type |
POSC |
epicentre 2.2.2 |
current |
inject |
WIME 1.0 |
Pump into a wellbore/formation with no returns. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
injection assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
injection build up test job |
WIME 1.0 |
Test in conjunction with Production logging. Transient pressure monitoring downhole during injection of a well. |
activity type |
POSC |
epicentre 2.2.2 |
current |
injection job |
WIME 1.0 |
Rig up surface equipment and pump fluid/slurry into formation. |
activity type |
POSC |
epicentre 2.2.2 |
current |
injectivity test job |
WIME 1.0 |
Determine optimal injection rates for waste and/or water in the weakest formations in the exposed section. |
activity type |
POSC |
epicentre 2.2.2 |
current |
inspect area |
WIME 1.0 |
Inspect working area visually Categories - safety inspection |
activity type |
POSC |
epicentre 2.2.2 |
current |
inspect equipment |
WIME 1.0 |
Visually ascertain the state of equipment. For example check odour, pitting of spark plug is "inspect". Checking gap with feeler gauge is "test". |
activity type |
POSC |
epicentre 2.2.2 |
current |
install blow out preventer |
WIME 1.0 |
Nippling up surface blow out preventer (BOP) or running subsea BOP. Includes time to rig up and down handling equipment. Includes nippling up diverter. Does not include testing BOP Categories of BOP are drilling, wireline, coiled tubing, snubbing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install corrosion cap |
WIME 1.0 |
Install corrosion cap from wellhead. Includes filling with fluids. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install downhole equipment |
WIME 1.0 |
To activate and set downhole equipment in the wellbore and to pull out of the equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install downhole equipment assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
install downhole equipment job |
WIME 1.0 |
Rig up surface equipment. Make up downhole equipment and running tool, run and set equipment, and pull out of hole. Rig down surface equipment. Installation of physical equipment in the wellbore. It could be removable equipment. Includes testing of equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install equipment |
WIME 1.0 |
Install equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install rig equipment |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
install rig equipment job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
install seal assembly |
WIME 1.0 |
Pick up running tool, emplace, set and lock, seal assembly. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install subsea equipment |
WIME 1.0 |
Install equipment on seabed or template. |
activity type |
POSC |
epicentre 2.2.2 |
current |
install subsea equipment job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
install template job |
WIME 1.0 |
Installation of template and related equipment. Includes testing of equipment Parts: adjust anchor tension, adjust ballast, assemble equipment, assembly run job, cementing job, check, clean equipment, disassemble equipment, equalise pressure, evaluate, flush equipment, generate hole, handle anchor, handle equipment, handle material, inject, inspect area, inspect equipment, install equipment, install rig equipment, maintain equipment, modify equipment, move equipment, move material, orientated downhole equipment, pick up and make up BHA, pick up and make up tubular, planned wait, position rig, pull out and lay down BHA, pull out of hole, remote operated vehicle job, repair equipment, run tubular casing/liner, safety meeting, scaffolding, subsea job, test equipment, transfer equipment or material, install subsea equipment, remove subsea equipment |
activity type |
POSC |
epicentre 2.2.2 |
current |
install wellbore material |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
install wellhead equipment |
WIME 1.0 |
Nipple up wellhead section and equipment. Includes preparation and safety work, which may be concurrent. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
install wellhead equipment job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
jack down rig |
WIME 1.0 |
Lower rig from start elevation by reducing the air gap. |
activity type |
POSC |
epicentre 2.2.2 |
current |
jack up rig |
WIME 1.0 |
Raise rig by increasing air gap. Includes testing the legs. Leg preloading is part of the activity. Includes lock/unlock legs. Could be done to qualify a location for later use. |
activity type |
POSC |
epicentre 2.2.2 |
current |
jar |
WIME 1.0 |
Hammer up/down with a jar/bumper sub on equipment installed/lost/stuck in wellbore. |
activity type |
POSC |
epicentre 2.2.2 |
current |
locate stuck point of tubular |
WIME 1.0 |
Locate stuck point by working tubular. Note - running a free point indicator is a logging job. |
activity type |
POSC |
epicentre 2.2.2 |
current |
logging assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
logging job |
WIME 1.0 |
Make up, run in hole, run data acquisition equipment or other appropriate equipment, pull out of hole and lay down equipment. Includes testing of logging tool and wiper trips done in connection with logging. Logging tool can be run on wire line, coiled tubing or drill pipe. Includes rigging up and down of surface equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
logging task |
WIME 1.0 |
Record information or acquire material from a certain depth or depths in the well. Logging tool can be run on either wireline, coiled tubing, drillpipe. Can be at a single position, or multiple positions (a pass). Fine tuning or confirmation of position is included. Includes measurement while drilling (MWD) - the measurement is an activity in parallel with the drilling. |
activity type |
POSC |
epicentre 2.2.2 |
current |
lubricate out of hole |
WIME 1.0 |
Pull out and lay down/rack back BHA. Components against shut in well head pressure. |
activity type |
POSC |
epicentre 2.2.2 |
current |
maintain equipment |
WIME 1.0 |
Maintenance and modification of rig equipment to keep in good working order, as opposed to repairs after failure Categories: - routine - preventative - expected - planed Preventative and routine are not lost time. |
activity type |
POSC |
epicentre 2.2.2 |
current |
mechanical plug job |
WIME 1.0 |
Installation of physical barrier in wellbore. It could be a removable barrier. |
activity type |
POSC |
epicentre 2.2.2 |
current |
mill |
WIME 1.0 |
Remove obstruction or equipment from wellbore (including casing/liner) through abrasion. Includes milling window. Includes milling off stub pipe end of cemented multilateral completion. Includes drilling cement deviation equipment, drilling cementing stage plugs Does not include threading to attach to fish (that is part of "Catch fish"). |
activity type |
POSC |
epicentre 2.2.2 |
current |
milling assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
milling job |
WIME 1.0 |
Make up milling assembly, run to depth, circulate, mill, circulate, remove and lay down milling assembly. |
activity type |
POSC |
epicentre 2.2.2 |
current |
mini-frac test job |
WIME 1.0 |
Close in well and pressure up, record information. Used to design fracture jobs. |
activity type |
POSC |
epicentre 2.2.2 |
current |
mix and pump slurry |
WIME 1.0 |
Make up cement slurry to specs and pump into wellbore and drop a plug on top. There may be two or more mix and pump cement activities, whereby slurry is pumped on top of previous plugs. |
activity type |
POSC |
epicentre 2.2.2 |
current |
mix fluid |
WIME 1.0 |
Mix fluid components into tanks or pits, monitor fluid properties, store mixed fluid in pit or tank. |
activity type |
POSC |
epicentre 2.2.2 |
current |
mobilize rig job |
WIME 1.0 |
Commission rig for operational use, sometimes including moving to site and preparing site. |
activity type |
POSC |
epicentre 2.2.2 |
current |
modify equipment |
WIME 1.0 |
Upgrade equipment or replace it with equipment of different specification. |
activity type |
POSC |
epicentre 2.2.2 |
current |
move equipment |
WIME 1.0 |
Move or spot equipment from one place to another on the wellsite, for example from one shaft to another. Part of all or most jobs. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
move leg |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
move material |
WIME 1.0 |
Move material between locations. Generally this is a mechanical move using process equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
move wellbore equipment |
WIME 1.0 |
Move equipment from one depth to another depth in wellbore in preparation for some activity. |
activity type |
POSC |
epicentre 2.2.2 |
current |
multi stage cement tubular assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
multi stage cement tubular job |
WIME 1.0 |
Install and cement sheath around an installed tubular across different wellbore intervals. |
activity type |
POSC |
epicentre 2.2.2 |
current |
multi well pulse test job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
multi well transient pressure test job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
opening hole |
WIME 1.0 |
Increase diameter of existing wellbore interval using hole opener. |
activity type |
POSC |
epicentre 2.2.2 |
current |
orientated downhole equipment |
WIME 1.0 |
Rotate equipment, including downhole tools. Includes determining orientation. For running wellhead, template or for directional drilling. |
activity type |
POSC |
epicentre 2.2.2 |
current |
perforate |
WIME 1.0 |
Create openings in wellbore and/or tubular by means of explosive charges Types of firing mechanism - electrical - pressure - drop ball - pulse - ball Measure - perforation interval - shut in WHP before/after - flowing WHP before/after Types of guns - hollow carrier - strip gun Types of charge - Deep Penetration - Big Hole - tubing punch |
activity type |
POSC |
epicentre 2.2.2 |
current |
perforate assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
perforate job |
WIME 1.0 |
Rigging up surface equipment for perforation, make up and run in hole with perforation guns. Create openings in wellbore and/or tubular by means of explosive charges. Detonate guns. Pull out of hole and lay down perforating gun. Rig down equipment used for perforation. Measure summary of: perforation intervals, shut in WHPs before/after, flowing WHPs before/after. Includes clean up after perforation. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pick up and make up BHA |
WIME 1.0 |
Pick up and make up bottom hole assembly, for all drilling and well operations phases. Surface testing of bottom hole assembly not included. Redress bottom hole assembly between run. Includes running a previously racked back bottom hole assembly. Includes make up running tool. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pick up and make up tubular |
WIME 1.0 |
Pick up single lengths of tubular, join 2 or 3 lengths into a stand and rack back in derrick. |
activity type |
POSC |
epicentre 2.2.2 |
current |
planned wait |
WIME 1.0 |
Expected unavoidable wait, for cement to set, effect of chemical treatment, orders, data evaluation, diving. It may be that the waiting is in parallel with some other activity (e.g. data evaluation). |
activity type |
POSC |
epicentre 2.2.2 |
current |
plug and abandon job |
WIME 1.0 |
Render all or part of wellbore safe for cessation of operations for indefinite period, or for sidetracking to capture new objective. Could result from drilling a dry hole (logs run), or after a well test. Could result from drilling problems that are cheaper to redrill than fix. |
activity type |
POSC |
epicentre 2.2.2 |
current |
position rig |
WIME 1.0 |
Place rig at proper location and elevation for intended well operation. Final adjustments of position. Includes drill ship. Cf. "Transit rig" |
activity type |
POSC |
epicentre 2.2.2 |
current |
position string at depth |
WIME 1.0 |
Find correct depth for assembly, equipment or string before it is activated. The correct depth is found by correlation with wireline log, radioactive tags. It specifically includes aligning wireline guns. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pressure bleed off |
WIME 1.0 |
Reduce pressure in a closed system of wellbore and/or surface systems. Measure volume and bleed back if required. The closed system is a mixture of wellbore and surface facilities. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull anchor |
WIME 1.0 |
Recover anchor from sea bed. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
pull out and lay down BHA |
WIME 1.0 |
Pull out and lay down/rack back bottom hole assembly or any bottom hole assembly tools, including heavy weight drill pipe. Does not include breaking down BHA after it has been racked back. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull out of hole |
WIME 1.0 |
Move equipment (drillpipe, coiled tubing, snubbing or wireline) along wellbore path towards surface. Break out drill pipe in singles and lay down while pulling out of hole. For rigs which do not have top drive, involves detaching mud pump connection for each single Categorise according to method - stand - single - coiled tubing - wireline - service break - inspection Categorise according to how it moves - pulling - pumping slug |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull riser |
WIME 1.0 |
Pull surface or subsea riser Categories: as run riser. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull seal assembly |
WIME 1.0 |
Pick up running tool and pull seal assembly. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull tubular |
WIME 1.0 |
Pull tubular (casing, liner, production tubing or tie back string) out of hole and lay down joints A tubular normally includes drillstring, but drillstring is not included in this activity, nor coiled tubing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull wearbushing |
WIME 1.0 |
Pick up running tool and retrieve wearbushing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pull whipstock |
WIME 1.0 |
Pick up running tool and retrieve whipstock |
activity type |
POSC |
epicentre 2.2.2 |
current |
pump down equipment |
WIME 1.0 |
Pump down equipment inside tubular, equipment with or without cable Part of: fishing job, install downhole equipment job, logging job, milling job, remove downhole equipment job, coring job |
activity type |
POSC |
epicentre 2.2.2 |
current |
pump slurry |
WIME 1.0 |
Pump a previously mixed slurry |
activity type |
POSC |
epicentre 2.2.2 |
current |
pump spacer |
WIME 1.0 |
Pump a previously prepared fluid between two dissimilar fluids/slurry. |
activity type |
POSC |
epicentre 2.2.2 |
current |
pumping fluid |
WIME 1.0 |
Pressurise a fluid within a system by means of an external, mechanical device (called a pump). |
activity type |
POSC |
epicentre 2.2.2 |
current |
ream |
WIME 1.0 |
Move equipment along wellbore path towards TD while pumping, with rotating of the drill string. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remote operated vehicle job |
WIME 1.0 |
Carry out subsea operation without divers, using subsea vehicle controlled from surface. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove blow out preventer |
WIME 1.0 |
Nipple down surface blow out preventer (BOP), pull subsurface BOP, and nipple down diverter. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove corrosion cap |
WIME 1.0 |
Pull corrosion cap from wellhead |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove downhole equipment |
WIME 1.0 |
Engage and release downhole equipment |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove downhole equipment assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
remove downhole equipment job |
WIME 1.0 |
Rig up surface equipment. Pick up running/retrieving tool, run and retrieve equipment, and pull out of hole. Rig down surface equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove equipment |
WIME 1.0 |
Remove equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove rig equipment |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
remove rig equipment job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
remove subsea equipment |
WIME 1.0 |
Remove equipment from sea bed or template. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove subsea equipment job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
remove template job |
WIME 1.0 |
Removal of template and related equipment. Includes testing of equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove wellhead equipment |
WIME 1.0 |
Nipple down wellhead section and equipment. Includes preparation and safety work, which may be concurrent. |
activity type |
POSC |
epicentre 2.2.2 |
current |
remove wellhead equipment job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
repair equipment |
WIME 1.0 |
Restore failed equipment to good working order, including trouble shooting and testing Repair is sometimes called corrective maintenance. In WIME 1.0, "Maintain equipment" explicitly excludes repair. Epicentre name is equipment_repair_job. |
activity type |
POSC |
epicentre 2.2.2 |
current |
reservoir performance test job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
retract leg |
WIME 1.0 |
Retract a single rig leg. |
activity type |
POSC |
epicentre 2.2.2 |
current |
retrieve packer |
WIME 1.0 |
Engage and release packer from wellbore. |
activity type |
POSC |
epicentre 2.2.2 |
current |
reverse circulate |
WIME 1.0 |
Pump fluid down annulus and take returns through the tubular. |
activity type |
POSC |
epicentre 2.2.2 |
current |
rig down land rig |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
rig down surface equipment |
WIME 1.0 |
Synonym nipple down. Remove surface equipment that was used for the operation, e.g. casing handling tools, scaffolding. |
activity type |
POSC |
epicentre 2.2.2 |
current |
rig up land rig |
WIME 1.0 |
Assemble or configure rig and associated equipment to an operational state. |
activity type |
POSC |
epicentre 2.2.2 |
current |
rig up surface equipment |
WIME 1.0 |
Rig up surface equipment |
activity type |
POSC |
epicentre 2.2.2 |
current |
rock mechanics test job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
run anchor |
WIME 1.0 |
Place anchors on sea floor. Test anchor. |
activity type |
POSC |
epicentre 2.2.2 |
current |
run in hole |
WIME 1.0 |
Move equipment along wellbore path towards TD with a workstring. Pick up pipe in stands and run in hole with bottom hole assembly. Run in hole with drillpipe, wire line, coiled tubing, or snubbing workstring. Includes run in hole in singles Does not include casing or production tubing Workstring = drill pipes plus BHAs Categorise according to surface equipment method/unit - stand - single - coiled tubing - wireline - slick line - bride - electric. Categorise according to how it moves - gravity (heavy - pushing (hydraulic) (light - pulling (tractor - pumping - stripping). With a tractor, need to record depth at which tractor starts after gravity period. |
activity type |
POSC |
epicentre 2.2.2 |
current |
run riser |
WIME 1.0 |
Run surface or subsea riser Need to distinguish high pressure riser used with tension leg platform (TLP) and marine riser from normal riser For completion of production riser on TLP, necessary to run one riser for each well. Categorise -HP drilling rise -HP drilling riser TL -LP drilling rise -Main rise -Production riser |
activity type |
POSC |
epicentre 2.2.2 |
current |
run tubular |
WIME 1.0 |
Pick up casing/liner joints, make it up to a string and run in hole. Includes casing, liner, tie back string, centre pillar and production tubing Does not include drillstring or coiled tubing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
run wearbushing |
WIME 1.0 |
Pick up running tool, run and set wearbushing. |
activity type |
POSC |
epicentre 2.2.2 |
current |
safety drill |
WIME 1.0 |
Perform safety drill Categories BOP drill, pit drill, fire drill, evacuation drill. |
activity type |
POSC |
epicentre 2.2.2 |
current |
safety meeting |
WIME 1.0 |
Educate and inform personnel concerning standing operational practices or forthcoming activities. |
activity type |
POSC |
epicentre 2.2.2 |
current |
sand control job |
WIME 1.0 |
Activities to install equipment to retain sand. Includes pumping gravel and installing isolation sleeve. |
activity type |
POSC |
epicentre 2.2.2 |
current |
scaffolding |
WIME 1.0 |
Build scaffolding. |
activity type |
POSC |
epicentre 2.2.2 |
current |
secure well job |
WIME 1.0 |
All activities to leave well in secure state, or attempt to do so, and activities to return or attempt to return well to condition immediately prior to beginning of this activity. Not temporary abandonment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
secure wellbore section job |
WIME 1.0 |
To cover the activities that are necessary to run and test casing. Includes any repair joints on wellbore if required after leak off test or formation integrity test. Also includes testing of liner and linerlap, any clean up run in liner, polish run, casing scraper run, logging run, survey run etc. |
activity type |
POSC |
epicentre 2.2.2 |
current |
set chemical plug |
WIME 1.0 |
Mix and pump chemical (barite) plug. Displace chemical plug in place. Pull bottom hole assembly out of chemical plug. |
activity type |
POSC |
epicentre 2.2.2 |
current |
set packer |
WIME 1.0 |
Set packer. Pull out of packer and ready to start circulation or pull out of hole. Includes mechanical packer or inflatable packer (using mud or cement) or external casing packer (ECP). |
activity type |
POSC |
epicentre 2.2.2 |
current |
set whipstock |
WIME 1.0 |
Actuate whipstock to fix it at specified depth. |
activity type |
POSC |
epicentre 2.2.2 |
current |
sidetrack job |
WIME 1.0 |
Everything from just initiating a sidetrack (after milling), to initiating, drilling and completing a sidetrack wellbore section. "Technical sidetrack job", a subtype, is more specific, and it both initiates a sidetrack and drills formation to specified depth. A technical sidetrack occurs normally because of some technical problem, such as an unrecoverable stuck pipe. Normal sidetracks are either intended, or else arise because the geology is different to what was expected. |
activity type |
POSC |
epicentre 2.2.2 |
current |
single stage cement assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
single stage cement tubular job |
WIME 1.0 |
Install a single cement sheath around an installed tubular string by pumping through the entire length of tubular string. |
activity type |
POSC |
epicentre 2.2.2 |
current |
site preparation |
WIME 1.0 |
Prepare environment suitable for accepting rig equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
site reclamation |
WIME 1.0 |
Return environment and rig site to best possible or regulated state. |
activity type |
POSC |
epicentre 2.2.2 |
current |
skid drilling tower |
WIME 1.0 |
Position drilling tower/derrick/mast structure on mechanical skid. |
activity type |
POSC |
epicentre 2.2.2 |
current |
spotting and preparing of equipment |
WIME 1.0 |
Prepare and check equipment prior to rig up. Place equipment in position. Check and place equipment in moonpool Part of:injection buildup test job, template work job, well completion job |
activity type |
POSC |
epicentre 2.2.2 |
current |
squeeze cement assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
squeeze cement job |
WIME 1.0 |
Squeeze cement into formation in open hole, at casing/liner shoe or through casing/liner. Hold squeeze pressure if required. Dump cement on top of cement retainer/packer if required. |
activity type |
POSC |
epicentre 2.2.2 |
current |
squeeze slurry |
WIME 1.0 |
Inject slurry via hydraulic pressure. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
step rate test job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
stripover wireline |
WIME 1.0 |
Recovery of stuck wireline tool with wire line intact to surface. Drillstring is run over wireline from the surface, and used to push the stuck wireline equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
subsea job |
WIME 1.0 |
An operation that takes place below the waters surface, and in the water. |
activity type |
POSC |
epicentre 2.2.2 |
current |
technical sidetrack job |
WIME 1.0 |
Covers all activities that are necessary to plug and abandon part of wellbore. Includes the necessary preparartion for kicking off. To kick off and drill new hole. |
activity type |
POSC |
epicentre 2.2.2 |
current |
temporary abandonment job |
WIME 1.0 |
Abandon a well with explicit intent to allow a subsequent return to wellbore operations. Usually includes demobilising and mobilising rig and a break in reporting. Well is not in productive use. Note this is different to secure well job. |
activity type |
POSC |
epicentre 2.2.2 |
current |
test equipment |
WIME 1.0 |
By measurement, ascertain the state of equipment. Function and/or pressure testing of surface and downhole equipment This does not include testing of wellbore formation or formation fluid This includes (see Epicentre -pressure testing (inflow and leak), -acceptance testing, -function testing, -calibration testing |
activity type |
POSC |
epicentre 2.2.2 |
current |
tie back facility slot job |
WIME 1.0 |
Physically connect temporarily abandoned wells, from a previous facility to a production facility. |
activity type |
POSC |
epicentre 2.2.2 |
current |
tow rig |
WIME 1.0 |
Transit rig under external power across water. |
activity type |
POSC |
epicentre 2.2.2 |
current |
transfer equipment or material |
WIME 1.0 |
Backload equipment or material to contractor or operator transportation facility. Transfer onto/off well site. Load or unload vessel/rig. |
activity type |
POSC |
epicentre 2.2.2 |
current |
transit rig |
WIME 1.0 |
Any activity to move a rig to or from a well or location. Does not include jack up/down rig. |
activity type |
POSC |
epicentre 2.2.2 |
current |
tubular installation assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
tubular installation job |
WIME 1.0 |
Includes all tasks to install a wellbore tubular, but excluding cementing. Inlcudes rigging up surface equipment |
activity type |
POSC |
epicentre 2.2.2 |
current |
tubular removal job |
WIME 1.0 |
Includes all tasks to remove a wellbore tubular. But excluding cementing. Includes rigging up surface equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
unavoidable wait |
WIME 1.0 |
Stop current operations due to waiting. Included time to suspend operations or resume operations. Unwilling to proceed due to unavoidable (hazardous) condition. |
activity type |
POSC |
epicentre 2.2.2 |
current |
underream |
WIME 1.0 |
Enlarge diameter of hole below a section of smaller diameter. Does not include any circulating. |
activity type |
POSC |
epicentre 2.2.2 |
current |
wait |
WIME 1.0 |
Break in well operations, following an event or some other planned activity. Include immediate response to stop current activity (such as pull out of hole), and time to prepare for resumption (such as run in hole again). |
activity type |
POSC |
epicentre 2.2.2 |
current |
wash in hole |
WIME 1.0 |
Move equipment towards total depth (TD) along wellbore path while pumping with no rotation on the work string. |
activity type |
POSC |
epicentre 2.2.2 |
current |
wash out of hole |
WIME 1.0 |
Move equipment along wellbore path towards surface while pumping with no rotation on the work string Categorise according to method - stand - single - coiled tubing |
activity type |
POSC |
epicentre 2.2.2 |
current |
wash over fish |
WIME 1.0 |
Move equipment over fish with pumps on. |
activity type |
POSC |
epicentre 2.2.2 |
current |
wash wellbore |
WIME 1.0 |
Circulate appropriate fluid with returns to test separator or burner while running in hole with workstring Includes chemical wash (acid) Both jetsub and open-ended workstring can be used. |
activity type |
POSC |
epicentre 2.2.2 |
current |
identifier |
naming _system |
description |
parent _class |
source |
version |
status |
well completion job |
WIME 1.0 |
Completion types - sandfrac - open hole - - barefoot - - slotted perforation line - - sand screen - cased hole - - cased and cemented - - perforation type - - isolation type |
activity type |
POSC |
epicentre 2.2.2 |
current |
well control assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
well control equipment assembly run job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
well control equipment job |
WIME 1.0 |
Nippling up or down, run, pull BOP, diverter and riser. Change rams in BOP. Install BOP. Function and pressure test BOP after installation and also during routine operations. |
activity type |
POSC |
epicentre 2.2.2 |
current |
well control job |
WIME 1.0 |
Establish sufficient barriers. |
activity type |
POSC |
epicentre 2.2.2 |
current |
well interference test job |
WIME 1.0 |
Pressure monitoring in one or several wells while producing/injecting in some other well. |
activity type |
POSC |
epicentre 2.2.2 |
current |
well performance test job |
WIME 1.0 |
Observe transient or steady state production/injection rate, pressure and temperature vs. time. Test can be done with or without logging tool in the wellbore. Includes rigging up/down surface equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
well test job |
WIME 1.0 |
|
activity type |
POSC |
epicentre 2.2.2 |
current |
wellbore inflow test job |
WIME 1.0 |
Bleed down (reduce) wellhead pressure and monitor pressure for significant changes. |
activity type |
POSC |
epicentre 2.2.2 |
current |
wellbore task |
WIME 1.0 |
Activities that involve the wellbore and downhole equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
wellbore tubular task |
WIME 1.0 |
A wellbore task involving a tubular. This abstract activity type gathers activities for which the type of tubular and size of tubular is of interest. |
activity type |
POSC |
epicentre 2.2.2 |
current |
wipertrip job |
WIME 1.0 |
Perform trip out and in or in and out of hole. Trip is from bottom to some depth and back, eg. to casing shoe. Generally there is no rotating or pumping, but there may be some minor rotating or pumping. |
activity type |
POSC |
epicentre 2.2.2 |
current |
work on Xmas tree job |
WIME 1.0 |
Rig up/down surface equipment and testing of equipment. Install and test barriers. Install/repair/change Xmas tree. Test Xmas tree. Remove barriers Parts: Adjust ballast, Assemble equipment, Assembly job, Assembly run job, Equalise pressure, Evaluate, Flush equipment, Grease Xmas tree valve, H2S check, Handle equipment, Handle material, Inspect area, Inspect equipment, Install wellhead equipment, Maintain equipment, Modify equipment, Move equipment, Move wellbore equipment, Planned wait, Position rig, Pressure bleed off, Pull riser, Ream, Remove rig equipment, Remove wellhead equipment, Repair equipment, Rig down surface equipment, Rig up surface equipment, Run riser, Safety meeting, Scaffolding, Subsea job, Test equipment, Transfer equipment or material |
activity type |
POSC |
epicentre 2.2.2 |
current |
work over job |
WIME 1.0 |
Maintenance or data acquisition on a well during the production phase. Includes any relevant job which can be done while the well is shut in. This includes many jobs which are part of the drilling phase as well. Includes spotting and preparation of equipment. |
activity type |
POSC |
epicentre 2.2.2 |
current |
work stuck fish |
WIME 1.0 |
Free stuck fish (equipment or tubular) downhole. |
activity type |
POSC |
epicentre 2.2.2 |
current |
work stuck pipe |
WIME 1.0 |
Work or jar stuck pipe until pipe is free. Includes pulling or pushing hard, twisting hard, and jarring up or down. |
activity type |
POSC |
epicentre 2.2.2 |
current |