Use of pressure transient testing to evaluate fractured reservoirs in Western Venezuela

Conference · Sat Sep 01 04:00:00 EDT 1984 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6142571

Da Prat, G; Manucci, J

For a naturally fractured reservoir the existence of two semi-log straight lines when analysing real pressure transient data is seldom observed and some existing models for interpretation of fractured systems have always been subjected to controversy. In this study an analysis of pressure transient data taken in wells completed in fractured reservoirs in Western Venezuela has shown the existence of two well-defined parallel semilog straight lines which confirms the Warren and Root model from a practical viewpoint. The data was analysed using the typecurve corresponding to the solutions for a well with wellbore storage and skin in a reservoir with double porosity (pseudo-steady state flow). The analysis provides values for the dimensionless fractured storage parameter, ..omega.. and the dimensionless matrixfracture permeability ratio, lambda which are considered to be representative of a two-porosity system. Finally, a production forecast analysis is made for the reservoir using the obtained values of ..omega.. and lambda.

• Research Organization: INTEVEP S.A.
• OSTI ID: 6142571
• Report Number(s): CONF-8409104-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE 13054
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
DATA ANALYSIS
DEVELOPING COUNTRIES
FORECASTING
FRACTURED RESERVOIRS
GEOLOGIC DEPOSITS
LATIN AMERICA
MATHEMATICAL MODELS
MINERAL RESOURCES
OIL FIELDS
OIL WELLS
PETROLEUM DEPOSITS
PRESSURE MEASUREMENT
PRODUCTION
RESERVOIR PRESSURE
RESOURCES
SOUTH AMERICA
TRANSIENTS
VENEZUELA
WELL LOGGING
WELL PRESSURE
WELLS