Measuring and testing – Borehole or drilling – Formation logging
Reexamination Certificate
2007-09-04
2007-09-04
Williams, Hezron (Department: 2856)
Measuring and testing
Borehole or drilling
Formation logging
C073S152510
Reexamination Certificate
active
10434923
ABSTRACT:
An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configured to selectively draw into the apparatus for measurement of one of formation fluid and mud. The method includes performing a first pretest to determine an estimated formation parameter; using the first pretest to design a second pretest and generate refined formation parameters whereby formation properties may be estimated.
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Follini Jean-Marc
Hache Jean-Michel
Pop Julian
Abrell Matthias
Echols Brigitte L.
Fitzgerald John
McEnaney Kevin P.
Schlumberger Technology Corporation
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