Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (2): 124-126.doi: 10.3969/j.issn.1673-8926.2008.02.022

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Can uplift r esult in abnormal high pr essur e in formation?

LI Chuanliang   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
  • Online:2008-06-15 Published:2008-06-15

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Abstract:

In order to make clear the cause of abnormal high pressure in formation, a study is carried out on the probability that uplift of formation can result in abnormal high pressure. The result shows that due to the high ratio of thermal expansion coefficient to compressibility of water, uplift can not cause abnormal high pressure in formation.The abnormal high pressure in oil and gas reservoirs requires a large height of uplift, which is unpractical generally.So the main cause of abnormal high pressures is still the invasion of external liquid into closed formations.

Key words: category of practice, level of practice, positive practice, practice motivation, first principle of practice

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