Practical Well Log Standards

Index

Executive Summary
Project Information:

Progress Report (June 2002)
Progress Report (Nov. 2001)
Project description as PowerPoint slide presentations
Organizational meeting information for Phases I and II
Phase I reference information

Version 1.0 Release

Practical Well Log Standards

Executive Summary

This project is working to establish standards for the creation of clearly labeled well log data sets that are accessible to a wide range of E&P professionals. This project leverages previous work, including other POSC standards.

Project Description

Log data consumers are overwhelmed with the amount of data they are receiving. Currently there are over 50,000 different types of well log curves (or traces); yet, most will agree that the number of useful types of well log curves is somewhere in the neighborhood of 500. Additionally, well log curve names are complex and are changing at an ever-increasing rate; even the petrophysicists can get confused!

This presents several problems for data loading and acquisition, including these:

How do you sort "useful data" from ancillary data?
How do you maintain consistent lists of 'load-lists' through your organization?
How do you know which data to load and which to archive?

The result of this confusion can be lost data, lost information, lost time, and lost revenue.

The establishment of practical well log standards can save companies money through:

Improved understanding of well log data,
Improved data access,
Increased confidence in processed data and
Improved understanding and access to well log data by non-petrophysicists.

Project Status

Version 1.0, representing the results of Phase I of the project, was released by POSC on February 22, 2001. About 100 logging tools of the following types were addressed: Nuclear, Resistivity, Acoustic, Electromagnetic Propagation, and Magnetic Resonance.

Version 2.0 will be the designation of the combined results of Phases I and II. About 100 logging tools of the types addressed in Phase I and these additional types will be covered: Collar Location, Geometry, Fluid Density, Flow Meter, Pressure / Temperature, Element Analysis, Neutron Decay, Cement Evaluation, Spectral Gamma Ray, Directional, and Magnetic

Preparatory Phase II meetings

London (January 31, 2001)
Houston (February 15, 2001)

Original Phase II fact sheet information

A project meeting in June 2001 in Houston

A progress report was published in November 2001

Regional Special Interest group meetings were held in the spring of 2002 in Stavanger, Aberdeen, and Houston

A progress report was published in June 2002

The next set meetings are tentatively scheduled for the fall of 2002 in at least the same three locations as in the spring. These meeting are intended to cover the following items:

Phase IId material and industry review [composited and interpreted curves]
Phase IIa progress [old technology tools covering Phase I scope]
Phase III progress [naming standards for log / tool level usage]
Phases IIb and IIc [new and old technology tools covering Phase II scope] - will not begin until after IIa, IId, and III have been completed.
Web Application - release of general user, query oriented Web application coupled with ongoing data loading and maintenance procedure.
Phase I curve naming and classification issue - review proposed resolution

Earlier Project Results

Version 1.0 Release (February 2001)
View information about the Phase I Organizational Meetings:
- Houston (November 5, 1999)
- Rijswijk (November 12, 1999)
Phase I reference information:
- a list of the Phase I Technical Committee Members.
- a list of the Phase I sponsor companies.
- the proposal fact sheet.

Classification system reconsideration

Industry Value

The anticipated industry benefits from this project include the following:

Reduced costs through process improvement
Increased data knowledge
Improved data access
Improved data loading efficiency
Faster data preparation and acceptance for data exchange/sale
Increased accessibility and understanding of logging data by non-petrophysicists.

Related Work

POSC Reference Data

Call for Participation

Participants and interested parties are asked to review the Phase IId working materials from June 2002 describing the current proposal for classifying composited and interpreted curves. Please send comments and suggestions to POSC at info@posc.org.

Last modified: October 8, 2002. Send questions and comments to webmaster@posc.org