西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (2): 182-184.DOI: 10.3863/j.issn.1674-5086.2010.02.036

• 探讨与争鸣 • 上一篇    

油藏工程该使用哪个岩石压缩系数

李传亮1 姚淑影1 李冬梅2   

  1. 1.“油气藏地质及开发工程”国家重点实验室•西南石油大学,四川 成都 610500;2.中国石化西北油田分公司工程技术研究院,新疆 乌鲁木齐 830011
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-04-20 发布日期:2010-04-20

WHICH ROCK COMPRESSIBILITY SHOULD BE USED IN RESERVOIR ENGINEERING

LI Chuan-liang1 YAO Shu-ying1 LI Dong-mei2

  

  1. 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu Sichuan 610500,China;2.Research Institute of Engineering and Technology,Northwest Oilfield Company,SINOPEC,Urumqi Xinjiang 830011,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-20 Published:2010-04-20

摘要:

岩石有3个体积,也有3个应力,因此,岩石有9个压缩系数,其中4个是独立的。油藏工程中使用的岩石压缩系数,实际上是岩石孔隙体积的压缩系数。岩石压缩系数与地层流体的压缩系数之和,为总压缩系数。总压缩系数折算到地层原油体积之上,为有效压缩系数。综合压缩系数概念模糊,不宜继续使用。地层压缩系数不伦不类,既不能实测,也无处使用,不宜继续给学生讲授,建议从油藏工程教科书中删除。

关键词: 油藏工程, 岩石, 压缩系数, 有效压缩系数, 物质平衡, 试井分析

Abstract:

There are three volumes and three stresses used to describe rock,nine compressibilities are determined accordingly,of which only four are independent.The rock compressibility used in reservoir engineering is actually the one of pore volume of rock.Rock compressibility plus the compressibility of reservoir liquids is called the total compressibility,which can be converted to the effective compressibility by oil saturation.The comprehensive compressibility used conventionally is obscure conceptually,which is not suggested to be used any more.Formation compressibility is easily confused,which can neither be measured nor be used in engineering,so is not suggested to be lectured in school for students any more,and had better be immediately eliminated from textbooks.

Key words: reservoir engineering, rock, compressibility, effective compressibility, material balance, welltest analysis

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