Measuring and testing – Borehole or drilling – Formation logging
Reexamination Certificate
2007-06-19
2007-06-19
Raevis, Robert (Department: 2856)
Measuring and testing
Borehole or drilling
Formation logging
Reexamination Certificate
active
11014422
ABSTRACT:
In one method, the permeabilities are obtained by correcting the geometric factor derived from combining the FRA analysis and buildup analysis. In a second method, the permeabilities are obtained by combining the spherical permeability estimated from buildup analysis and the geometric skin factor obtained from history matching the probe-pressure data. In another method, horizontal and vertical permeabilities are determined by analysis of pressure drawdown made with a single probe of circular aperture in a substantially horizontal borehole at two different walls of the borehole.
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Georgi Daniel T.
Sheng James J.
Baker Hughes Incorporated
Madan Mossman & Sriram P.C.
Raevis Robert
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