Pressure transient analysis for naturally fractured reservoirs

Conference · Wed Sep 01 04:00:00 EDT 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5326387

Cinco-ley, H; Samaniego, F V

New ideas are presented for the interpretation of pressure transient tests for wells in naturally fractured reservoirs. This work is based on the transient matrix flow model formulated by de Swaan. The differences between this model and the Warren and Root model occur during the transition flow period. It is demonstrated that the behavior of a naturally fractured reservoir can be correlated by using three dimensionless parameters. It is established that regardless of matrix geometry the transition period might exhibit a straight line whose slope is equal to half the slope of the classical parallel semilog straight lines, provided the transient matrix linear flow is present. In addition, information is provided on the estimation of fracture area per unit matrix volume or matrix parameters from the transition period semilog straight line. It is shown that matrix geometry might be identified when pressure data are smooth. Field examples are included to illustrate the application and the validity of the theoretical results of this study.

• Research Organization: Univ. of Mexico-Pemex
• OSTI ID: 5326387
• Report Number(s): CONF-820927-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE11026
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CALCULATION METHODS
DATA
FLOW MODELS
FLUID FLOW
FRACTURED RESERVOIRS
GEOPRESSURE ANOMALIES
INFORMATION
MATHEMATICAL MODELS
MATRICES
MATRIX ELEMENTS
NATURAL GAS WELLS
NUMERICAL DATA
OIL WELLS
RESERVOIR PRESSURE
RESERVOIR ROCK
RESOLUTION
THEORETICAL DATA
TIME RESOLUTION
TIMING PROPERTIES
TRANSIENTS
WELL PRESSURE
WELLS