POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
This change adds the concept of effective tubing volume. This characteristic is used in transient pressure test analysis to estimate and correct for the effects of after-flow during shut-in tests and unloading during flow tests.
CHANGE ESM_effective_tubing_volume (*<REMARK>CHANGE ESM_effective_tubing_volume CONTEXT Epicentre_2_2;*) (*<CHANGE> This change adds the concept of effective tubing volume. This characteristic is used in transient pressure test analysis to estimate and correct for the effects of after-flow during shut-in tests and unloading during flow tests. *) ADD ENTITY pty_tubing_volume (*<desc> This is the effective or apparent volume of a tubing string. This represents the volume of the string capable of containing fluid under normal operating conditions.*) SUBTYPE OF (pty_transient_property); tubing_string : OPTIONAL tubing_string (*<desc> This is the tubing string for which this effective volume is being described.*) (*<verb>be a property of*); data_value : ndt_volume (*<desc> This is the effective volume.*); UNIQUE si: tubing_string, end_time, ref_transient_period, start_time, activity; END_ENTITY; ALTER ENTITY tubing_string; INVERSE ADD effective_volume : SET[0:?] OF pty_tubing_volume FOR tubing_string (*<desc> This is the effective volume of the tubing string, used to estimate and correct for the effects of after-flow during shut-in tests and unloading during flow tests.*) (*<verb>have a property of*); END_ENTITY; END_CHANGE;