WHICH ROCK COMPRESSIBILITY SHOULD BE USED IN RESERVOIR ENGINEERING

doi:10.3863/j.issn.1674-5086.2010.02.036

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 • Previous Articles

WHICH ROCK COMPRESSIBILITY SHOULD BE USED IN RESERVOIR ENGINEERING

LI Chuan-liang¹YAO Shu-ying¹LI Dong-mei²

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

Abstract

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

CLC Number:

TE311

LI Chuan-liang YAO Shu-ying LI Dong-mei. WHICH ROCK COMPRESSIBILITY SHOULD BE USED IN RESERVOIR ENGINEERING[J]. 西南石油大学学报(自然科学版), 2010, 32(2): 182-184.

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WHICH ROCK COMPRESSIBILITY SHOULD BE USED IN RESERVOIR ENGINEERING

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