Fracture evaluation with pressure transient tests in low-permeability gas reservoirs. Part 1. Theoretical background

Conference · Mon Jan 01 00:00:00 EST 1979 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5809098

Holditch, S A; Lee, W J

The purpose of this study is to summarize the theoretical background of methods which have been used to determine formation permeability, fracture length, and fracture conductivity in low-permeability, hydraulically fractured gas reservoirs. This summary is intended to emphasize the major strengths and weakness of the methods studied. These characteristics have not always been emphasized in the original literature and have, in some cases, remained obscure to the practicing engineer. This preprint is a companion work to SPE-7930, in which the experience in application of these techniques to problems arising in practice is discussed. Test analysis methods discussed include: (1) a method applicable only after a pseudo-radial flow pattern is developed in the reservoir, (2) a method applicable when linear flow dominates in the reservoir, (3) published type curves, with emphasis on those which include finite-conductivity fractures, (4) a modification of linear-flow techniques useful for finite-conductivity fractures, and (5) use of finite-difference reservoir simulators in a history matching mode. 10 references.

• OSTI ID: 5809098
• Report Number(s): CONF-790514-
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE-7929; Conference: Symposium on low-permeability gas reservoirs, Denver, CO, USA, 20 May 1979
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
FRACTURED RESERVOIRS
MEASURING METHODS
NATURAL GAS WELLS
HYDRAULIC FRACTURING
EVALUATION
FRACTURES
LENGTH
PERMEABILITY
RESERVOIR ENGINEERING
TECHNOLOGY ASSESSMENT
WELL STIMULATION
COMMINUTION
DIMENSIONS
ENGINEERING
FAILURES
FRACTURING
STIMULATION
WELLS
030900* - Natural Gas- Artificial Stimulation
Plowshare- (-1989)