Masters Theses

Abstract

"A generalized digital approach to pressure transient (well-test) analysis is developed. The model is rigorously applicable to flow tests (pressure drawdown or injectivity of Newtonian liquids), and to pressure buildup or falloff tests provided the f low time prior to shut-in is large compared to the total shut-in time. However, buildup or falloff data may s till be analyzed if the above conditions are not satisfied, using the principles of superposition/desuperposition.

When plotted on logarithmic coordinates, pressure transient data generally assume a characteristic shape, indicative of flow behavior. Accurate computer analysis of this data requires its representation in concise mathematical form. The Method of Least Squares is frequently used in this accord, and a new nonlinear model is developed to serve this purpose. The nonlinear model applies to automatic pressure transient analysis; in fact, it is in no way restricted to pressure transient applications. Indeed, any data which, when plotted on the appropriate coordinate axes yield the aforementioned shape can be represented by this nonlinear model. The diagnostic ability of the generalized digital model is demonstrated by several case studies"-- Abstract, p. ii

Advisor(s)

Koederitz, Leonard

Committee Member(s)

Govier, John P., 1913-1998
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

Fall 1982

Pagination

viii, 86 pages

Note about bibliography

Includes bibliographical references (pages 52-57)

Rights

© 1982 Jeffrey Allan Joseph, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 4892

Print OCLC #

9308370

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