天然气地质学

气藏含束缚水储层岩石应力敏感性实验研究

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  • 西南石油学院; 四川成都;

网络出版日期: 2004-06-20

AN EXPERIMENTAL STUDY ON STRESS SENSITIVITY OF GAS RESERVOIR ROCK WITH IRREDUCIBLE WATER

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  • South-West Petroleum Institute, Chengdu 610500, China

Online published: 2004-06-20

摘要

实验研究表明,不管是干燥岩石还是含束缚水岩石,低渗透砂岩储层的应力敏感性是客观存在的,而且这种应力敏感性对储层渗透率造成的伤害不可忽视。随着有效压力的升高,渗透率是逐渐降低的,并且在有效压力升高的早期降低的幅度最明显,在后期则趋于平缓。而在有效压力恢复过程中,渗透率不能恢复到原来大小,即应力敏感对渗透率的伤害具有永久性。通过干燥样品与含束缚水样品的对照实验数据及分析表明,含束缚水样品的应力敏感性更明显,即应力造成含束缚水样品的渗透率降低幅度更大、伤害程度更大。

本文引用格式

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

Abstract

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.

参考文献

[1]戈尔布洛夫 A T.异常油田开发[M]北京:石油工业出版社,1987.
[2]吴凡,孙黎娟,何江.孔隙度、渗透率与净覆压的规律研究和应用[J].西南石油学院学报,1999,21(4):23-25.
[3-]刘建军,刘先贵.有效压力对低渗透多孔介质孔隙度、渗透率的影响[J].地质力学学报,2001,7(1):41-44.
[4]严恕荪,张淑琴.三轴压力下气体在岩石中渗透率的测定\[J\].天然气工业,2000,20(4):100-101.
[5]Jin M, Somerville J, Smart B G D.Coupled Reservoir Simulation Applied to the Management of Production Induced Stress-Sensitivity[R]. SPE 64790, presented at the 2000 SPE International Oil and Gas Conference and Exhibition, China,2000.
[6]张琰,崔迎春.低渗气藏应力敏感性及评价方法的研究\[J\].现代地质,2001,15(4):453-457
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