MISUNDERSTANDING THE PERFORMANCE OF ABNORMAL PRESSURE GAS RESERVOIR

doi:10.3863/j.issn.1000-2634.2007.02.046

西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (2): 166-169.DOI: 10.3863/j.issn.1000-2634.2007.02.046

• 探讨与争鸣 • Previous Articles Next Articles

MISUNDERSTANDING THE PERFORMANCE OF ABNORMAL PRESSURE GAS RESERVOIR

LI Chuan-liang.

（State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu Sichuan 610500，China）

Received:2007-01-17 Revised:1900-01-01 Online:2007-04-20 Published:2007-04-20
Contact: LI Chuan-liang

Abstract

Abstract:

Abnormal pressure gas reservoirs are similar to normal pressure gas reservoirs, only the former is at higher pressure. The production index curves of all gas reservoirs, not only abnormal pressure ones, are curved downward. The production index curve of abnormal pressure gas reservoir is a smooth curve, not a tortuous line as conventionally plotted. Rock compressibility of abnormal pressure gas reservoir is similar to that of conventional reservoirs with a very small value. The rock compressibility of abnormal pressure gas reservoir is not related to the depth of reservoirs, but the porosity of reservoir rocks and the rigidity of rock frame.

Key words: gas reservoir, abnormal pressure, production index curve, pseudo pressure, rock compressibility, gas reservoir engineering

CLC Number:

TE112.12

LI Chuan-liang.. MISUNDERSTANDING THE PERFORMANCE OF ABNORMAL PRESSURE GAS RESERVOIR[J]. 西南石油大学学报(自然科学版), 2007, 29(2): 166-169.

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MISUNDERSTANDING THE PERFORMANCE OF ABNORMAL PRESSURE GAS RESERVOIR

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