Reservoir analysis and recovery prediction for cycling gas-condensate reservoirs

Conference · Thu Dec 31 23:00:00 EST 1964

OSTI ID:6714946

Butterfield, O R; Clark, J D; Brauer, E B

This paper demonstrates techniques for determining gas reserves and for predicting performance of gas- condensate reservoirs where cycling is employed. Calculation of original gas in place is accomplished through the application of a simple transient gas energy balance equation. The volumetric gas balance utilizes past production data and bottomhole pressures taken over the life of the project. Reservoir and fluid data are derived from other sources. Flow potential is obtained from pressure buildup and drawdown tests. Conformance of the reservoir is predicted through the use of a relaxation technique. The use of the procedure is here applied to a gas-cycling project to predict condensate recovery based on future volumetric sweep of the reservoir by cycled gas. The procedure is equally adaptable to water-drive or waterflooded oil reservoirs. An actual reservoir is studied using field data. Results are graphically presented. These data are then used as the basis for economic analysis of the gas-cycling project. (12 refs.)

• OSTI ID: 6714946
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
CONDENSATES
ECONOMICS
ENERGY SOURCES
ENGINEERING
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS CONDENSATES
GAS FUELS
GASES
LIQUIDS
NATURAL GAS
NATURAL GAS LIQUIDS
PETROLEUM
PRODUCTION
RECOVERY
RESERVES
RESERVOIR ENGINEERING
RESOURCES