Lithologic Reservoirs ›› 2009, Vol. 21 ›› Issue (4): 120-123.doi: 10.3969/j.issn.1673-8926.2009.04.025

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Equivalent depth method is not equivalent

LI Chuanliang   

  1. State Key Lab of Oil and Gas Reservoir Geology and Exploitation， Southwest Petroleum University， Chengdu 610500， China
  • Online:2009-12-16 Published:2009-12-16

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Abstract:

Based on the theory of rock mechanics, the deformation mechanismof rock was studied. The porosity of rock depends on the arrangements and the size distribution of grains, not the size of grains. The porosity curve can be divided into the compaction portion and the compression portion. Porosity in the compaction portion changes with stress, while the porosity in compression portion keeps constant and does not change with stress. However the theory of petroleum geology takes the compression portion as the undercompaction portion, and the constant porosity as the result of increased pore pressure. The equivalent depth method is used to calculate the pore pressure. Actually the equivalent depth method is not equivalent. The dependence of porosity on the pressure is lack of theoretical basis. The abnormal pressures in the compression portion by the equivalent depth method are not consistent with practice. Prediction of pressure by the equivalent depth method is meaningless in practice which maymislead the relative researches.

Key words: VSP, vertical seismic profile, Putaohua oil layer, Nanshanwan area

［1］ 李明诚.石油与天然气运移（第三版）［M］.北京：石油工业出版社，2004：53-54.
［2］ 丁次乾.矿场地球物理［M］.东营：石油大学出版社，1992：341-344.
［3］ 刘向君，刘堂宴，刘诗琼.测井原理及工程应用［M］.北京：石油工业出版社，2006：114-117.
［4］ 李传亮.油藏工程原理［M］.北京：石油工业出版社，2005：41-44.
［5］ 李传亮，孔祥言，徐献芝，等.多孔介质的双重有效应力［J］.自然杂志，1999，21（5）：288-292.
［6］ 李传亮.岩石欠压实概念质疑［J］.新疆石油地质，2005，26（4）：450-452.
［7］ 张厚福，方朝亮，高先志，等.石油地质学［M］.北京：石油工业出版社，1999：134-135.
［8］ 真柄钦次.石油圈闭的地质模型［M］.武汉：中国地质大学出版社，1991：1-14.
［9］ 李传亮，张景廉，杜志敏.油气初次运移理论新探［J］.地学前缘，2007，14（4）：132-142.
［10］ 李传亮.油气倒灌不可能发生［J］.岩性油气藏，2009，21（1）：6-10.
［11］ 李传亮.有效应力概念的误用［J］.天然气工业，2008，28（10）：130-132.
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