Method for measuring formation properties with a...

Measuring and testing – Borehole or drilling – Formation logging

Reexamination Certificate

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C073S152380, C166S250010

Reexamination Certificate

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07024930

ABSTRACT:
An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and 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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