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Downhole Geochemical Analysis of Gas Content and Critical Desorption Pressure for Carbonaceous Reservoirs

Pope, John1, Daniel Buttry1, Robert Lamarre1, Bret Noecker1, Steven MacDonald1, Brian LaReau1, Patrick Malone1, Neil Van Lieu1, Daniel Petroski1, Matthew Accurso1, David Harak1, Richard Kutz1, Stephen Luker1, Raymond Martin1, Charles Mones1, Curtis Smith1 (1) WellDog, Inc, Laramie, WY

 

This paper describes research directed at developing a new method to determine critical desorption pressure and gas content. This method is facilitated by development of a Raman-spectroscopy based sensor capable of detecting and quantifying trace amounts of solution gas. In this report, we describe the reservoir physics that makes the method possible, we share laboratory results that illustrate and confirm the underlying physics, and we show some representative field surveys. 

 

AAPG Search and Discovery Article #90055©2006 AAPG Rocky Mountain Section Meeting, Billings, Montana