Masters Theses

Abstract

"This study presents an investigation to automatically evaluate reservoir parameters using pressure transient theory. Methods will be introduced to numerically fit the well test data in the real (time) domain (specifically the pressure change as a function of test time). The numerical fit and known fluid, rock and well properties will be used to evaluate the dimensionless storage coefficient. The theoretical dimensionless pressure (being a function of skin factor, permeability, and dimensionless storage coefficient) is obtained by Laplace Inversion. The ability to evaluate the dimensionless storage coefficient thus reduces the parameters of the pressure equation by one. Varying the skin factor yields an estimate of the permeability by use of the least squares method. Convergence is determined through the comparison of porosity -compressibility products.

The proposed method is applicable to pressure drawdown and injectivity tests and to pressure buildup or falloff tests, provided the flowtime prior to shut-in is large compared to the total shut-in time. The well test should show evidence of wellbore storage effects and wellbore damage. Case studies will be used to demonstrate the use of the proposed computer algorithm in well test analysis"-- Abstract, p. ii

Advisor(s)

Koederitz, Leonard

Committee Member(s)

Numbere, Daopu Thompson, 1951-
Gillett, Billy E.

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Petroleum Engineering

Publisher

University of Missouri--Rolla

Publication Date

Spring 1985

Pagination

viii, 74 pages

Note about bibliography

Includes bibliographical references (pages 58-64)

Rights

© 1985 Steven Robert Homoky, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 5179

Print OCLC #

12242195

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