Identifying zones of origin of annular gas pressure

Details Identifying zones of origin of annular gas pressure Identifying zones of origin of annular gas pressure

2005-05-04

2008-10-21

Gay, Jennifer H (Department: 3676)

Wells

Processes

With indicating, testing, measuring or locating

C166S250070, C166S264000, C073S152190, C073S152220, C073S152230, C073S152270, C175S050000, C702S009000

Reexamination Certificate

active

07438128

ABSTRACT:
A method for identifying annular gas sources in a wellbore is disclosed. In one embodiment, the method comprises providing a set of parameters, wherein the set of parameters corresponds to depths in the wellbore. In addition, the method comprises analyzing annular gas in the wellbore to provide isotopic data of the annular gas. The method further comprises correlating the isotopic data to the set of parameters to identify the annular gas source.

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“annular gas flow” Schlumberger Oilfield Glossary, retrieved from http://www.glossary.oilfield.slb.com/search.cfm.
Schlumberger Oilfield Glossary, “annulus,” retrieved from http://www.glossary.oilfield.slb.com/search.cfm.

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