Improved technique for estimating permeability, fracture length, and fracture conductivity from pressure-buildup tests in low-permeability gas wells

Journal Article · Sun May 01 00:00:00 EDT 1983 · J. Pet. Technol.; (United States)

DOI:https://doi.org/10.2118/9885-PA· OSTI ID:6193310

Holditch, S A; Lee, W J; Gist, S R

The proposed iterative method analyzes postfracture pressure data in an unambiguous manner to determine the parameters (length and conductivity of the fracture and the permeability of the formation) required to improve fracture design in a given stratigraphic interval. Three detailed examples demonstrate the applicability of the proposed approach to pressure-buildup tests in which the semilogarithmic straight line is not reached. The method may not be applicable to low-conductivity fractures and unusually short tests; however, all available techniques should be tried on postfracture buildup tests since none of the techniques is completely reliable.

• Research Organization: Texas A and M Univ., College Station
• OSTI ID: 6193310
• Journal Information: J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 35; ISSN JPTJA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030200* -- Natural Gas-- Reserves
Geology
& Exploration
030300 -- Natural Gas-- Drilling
Production
& Processing
COMMINUTION
FRACTURING
GEOLOGIC DEPOSITS
ITERATIVE METHODS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS WELLS
PERMEABILITY
PRESSURE MEASUREMENT
RESOURCES
WELLS