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Unified treatment of the effects of wellbore storage and variable sandface flowrate on gas well drawdown and buildup analysis

Conference ·
OSTI ID:7109007
; ;

A unified method for analyzing drawdown and buildup data for permeability, non-Darcy coefficient, and skin factor is presented. The method accounts for wellbore storage and variable sandface flow rate. Drawdown/buildup data for two rates from an experimental reservoir are analyzed with this method. The parameters obtained from that analysis were used in a mathematical reservoir simulator to generate a pressure-time history which matched the experimental history within 3 psi over the test period, thereby demonstrating the compliance of the experimental reservoir with accepted principles of compressible fluid flow in porous media.

OSTI ID:
7109007
Report Number(s):
CONF-761008-134
Country of Publication:
United States
Language:
English

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Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
FLUID FLOW
GAS FLOW
GEOLOGIC DEPOSITS
MATERIALS
NATURAL GAS DEPOSITS
NATURAL GAS FIELDS
NATURAL GAS WELLS
PERMEABILITY
POROUS MATERIALS
PRESSURE GRADIENTS
RESERVOIR ROCK
RESOURCES
ROCKS
SIMULATION
SKIN EFFECT
TIME DEPENDENCE
WELLS