Masters Theses

Alternative Title

A comparison of the effect of pressure-volume-temperature data application methods on predicted depletion drive reservoir performance


"It is generally agreed that the evolution of gas from oil within a reservoir is most closely approximated by the differential liberation process, while gas liberation in the flow string, surface separator, and stock tank is most nearly represented by flash liberation. To conform with this assumed physical behavior, appropriate application of both flash and differential liberation data in the computation of reservoir performance by material balance methods is indicated.

In this work, simple depletion-drive oil and gas recoveries were calculated (1) using differential liberation data only, and (2) using differential liberation data adjusted to incorporate the results of flash separation tests. A comparison of the results obtained indicates that while the differences in depletion-drive recoveries so predicted may sometimes be unimportant from a practical standpoint, they can be appreciable where considerable differences exist between the flash and differential formation-volume-factors.

Utilization of differential liberation data which has been converted from a “residual oil" to a "stock tank oil" basis throughout the material-balance equations appears to be a simple, appropriate method of incorporating the effects of both liberation processes. This conversion may be accomplished by multiplying differential solubility and shrinkage values by the ratio of flash to differential bubble-point formation-volume-factor"--Abstract, page 1.


Vaughn, George E., Jr., 1925-1997

Committee Member(s)

Govier, John P., 1913-1998
James, William Joseph
Kerr, Richard H., 1907-1980


Mining Engineering

Degree Name

M.S. in Mining Engineering


Master of Science, Mining Engineering - Petroleum Engineering Option


Missouri School of Mines and Metallurgy

Publication Date



v, 44 pages

Note about bibliography

Includes bibliographical references (page 43).


© 1959 Frederick A. Klein, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Petroleum reserves -- Mathematical models
Petroleum -- Geology -- Mathematical models
Oil reservoir engineering

Thesis Number

T 1232

Print OCLC #


Electronic OCLC #