AN EXPERIMENTAL STUDY ON STRESS SENSITIVITY OF GAS RESERVOIR ROCK WITH IRREDUCIBLE WATER
杨满平;李允;李治平; . 气藏含束缚水储层岩石应力敏感性实验研究[J]. 天然气地球科学, 2004 , 15(3) : 227 -229 . DOI: 10.11764/j.issn.1672-1926.2004.03.227
By the experiment study, the stress-sensitivity of low-permeability gas reservoirs is being existed objectively. And the hurt for reservoir’s permeability can’t be ignored. The permeability descend by the effective stress ascend, and descend range in earlier period is most significantly and gently in later period. But the permeability can not restore by descend the effective stress, so the hurt for permeability is permanence. Compare to the dry rock samples, the samples with irreducible water have more sign.
Key words: Key words:Stress sensitivity; Gas reservoir; Irreducible water; Permeability; Rock.
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