Pressure Testing Confirms Suspected Geologic Boundaries in a Small Gas Field


John F. Evers,
The University of Wyoming

6th Formation Evaluation Symposium of the
Canadian Well Logging Society in Calgary, October 24, 25 & 26, 1977



It has been stated that pressure test analysis is nonunique until supported by nonpressure test evidence. This paper presents two case histories of extended pressure tests which demonstrate both the nonuniqueness of the pressure information and the analysis that is possible by using all supporting evidence. The two test wells were shown to have limited and noncommercial reserves, but important conclusions were reached concerning a nearby fault and the effectiveness of completion procedures.