STRESS SENSITIVITY ANALYSIS OF RESERVOIR ROCK WITH PRIMITIVE EFFECTIVE STRESS

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  • 1. Yanshan University, Qinhuangdao 066004, China; 2.Southwest Petroleum Institude, Chengdu 610500, China

Received date: 2004-06-25

  Revised date: 2004-10-10

  Online published: 2004-12-20

Abstract

Reservoirs are  influenced by incumbency rock pressure, sideways pressure and porosity pressure at primitive stratum. This stress state is called primitive effective-stress. After the primitive effective-stress be considered, the law of stress sensitivity still follow the negative exponential attenuation. Compare to no consideration of primitive effective-stress, the descend degree of permeability is more little, so the stress sensitivity is weaker. But the law can suit to the fact, and have practical meaning for actual production.

Cite this article

YANG Man-ping,LI Yun . STRESS SENSITIVITY ANALYSIS OF RESERVOIR ROCK WITH PRIMITIVE EFFECTIVE STRESS[J]. Natural Gas Geoscience, 2004 , 15(6) : 601 -603 . DOI: 10.11764/j.issn.1672-1926.2004.06.601

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