04555934 is referenced by 35 patents and cites 14 patents.

The permeability of a core sample is measured during nonsteady state flow of fluid therethrough. A predetermined test pressure is supplied to an upstream end of the core sample while that sample is disposed in a fixed, closed volume and is subjected to a constant, predetermined confining pressure. The change in pressure across the core sample, with the passage of time, is measured; and the permeability of the core sample is determined as a function of the time-related measure of pressure change.

Title
Method and apparatus for nonsteady state testing of permeability
Application Number
6/426798
Publication Number
4555934
Application Date
September 29, 1982
Publication Date
December 3, 1985
Inventor
Darrell C Bush
Colleyville
TX, US
David L Freeman
Garland
TX, US
Agent
Lee C Robinson Jr
Assignee
Core Laboratories
TX, US
IPC
G01N 15/08
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