Numerical simulation of oil production with simultaneous ground subsidence

Thesis/Dissertation · Mon Jan 01 04:00:00 EST 1973

OSTI ID:6636097

Parra, A F

A 2-phase, 2-dimensional black oil simulator was developed for simulating reservoir production behavior with simultaneously occurring reservoir formation compaction and ground subsidence of the surface. Computer runs were used to generate a variety of data. The average reservoir pressure increased with the compaction coefficient, for a given cumulative oil production, which means that the recovery increases with the degree of compaction. The model was employed for generating the reservoir formation profiles, as well as the ground subsidence bowls for a variety of conditions. The subsidence behavior strongly depends on the depth of burial and the areal extent of the reservoir. The model also was used for studying the possible effect of compaction on the response of the reservoir to pressure buildup tests, taking into account the variation of permeability with compaction. Another phase of the study was the effect of gas injection on reservoir compaction performance. The model was employed for simulating the reported oil production and subsidence history of one of the Bolivar Coast oil fields in W. Venezuela, where extensive ground subsidence has been in evidence for many years.

• OSTI ID: 6636097
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
COMPUTERIZED SIMULATION
DEVELOPING COUNTRIES
ENHANCED RECOVERY
FLUID INJECTION
GAS INJECTION
GEOLOGIC DEPOSITS
GROUND SUBSIDENCE
LATIN AMERICA
MINERAL RESOURCES
OIL FIELDS
PETROLEUM DEPOSITS
PRIMARY RECOVERY
PRODUCTION
RECOVERY
RESERVOIR ROCK
RESOURCES
SIMULATION
SOUTH AMERICA
VENEZUELA