Cased hole formation tester

Details Cased hole formation tester Cased hole formation tester

G - Physics

01

L

73/115

G01L 7/00 (2006.01) E21B 47/06 (2006.01) E21B 49/00 (2006.01) E21B 49/10 (2006.01)

Patent

CA 2035974

A method an apparatus for fluid pressure testing of a formation behind casing is set forth. In one method, a formation testing tool is lowered into the well to a specified depth opposite a formation of interest behind a casing. A test probe is extended and a perforation is formed from the test probe into the formation to obtain fluid communication with the formation. Utilizing a storage container in the testing tool, fluid is pumped from the formation into the test tool, or from the test tool into the formation and formation pressures are measured at selected intervals.

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