石油学报 ›› 1996, Vol. 17 ›› Issue (2): 41-46.DOI: 10.7623/syxb199602007

• 油田开发 • 上一篇    下一篇

泥岩盖层烃类垂向分布规律和气藏追索

王振平, 王子文   

  1. 大庆石油学院
  • 收稿日期:1995-07-04 修回日期:1995-12-11 出版日期:1996-04-25 发布日期:2013-07-08
  • 作者简介:王振平.1984年毕业于长存地质学院岩矿测试及地球化学系现任大庆石油学院勘探系讲师.通讯处:黑龙江省安达市.邮政编码:151400
  • 基金资助:
    中国石油天然气总公司资助

VERTICAL DISTRIBUTION REGULARITIES OF HYDROCARBON IN SHALE CAP ROCK IN RELATION TO SEARCHING FOR GAS RESERVOIRS

Wang Zhenping, Wang Ziwen   

  1. Daqing Petroleum Institute
  • Received:1995-07-04 Revised:1995-12-11 Online:1996-04-25 Published:2013-07-08

摘要: 在总结盖层烃类分布特征的基础上,用油气地球化学理论和盖层封油气理论,分析了盖层内烃类垂向分布的成因机制.盖层内烃类由“残留烃”和“滞留烃”叠加而成,残留烃主要分布于盖层中部,其组成变化受盖层排烃效应的控制,滞留烃主要分布于盖层的下部,其组成变化受烃类垂向迁移效应的控制.建立了盖层烃类垂向分布成因模式.并探讨了盖层烃类垂向分布规律在盖层研究和气藏追索中的作用.

关键词: 盖层, 烃, 分布, 模式, 气臧

Abstract: On the basis of summing up the features of hydrocarbon distribution in cap rock,the genetic mechanism of hydrocarbon vertical distribution in cap rock is analyzed by applying hydrocarbon geochemistry theories and also theories regarding hydrocarbons sealed by cap rock. The hydrocarbons in cap rock are composed of "residual hydrocarbons"and "occluded hydrocarbons", which stack each other.The residual hydrocarbons mainly distribute in the middle part of cap rock with hydrocarbon composition variation controlled by the effect of cap rocks to expell hydrocarbons;while the occluded hydrocarbons mainly distribute in the lower part of cap rock with hydrocarbon composition variation controlled by the effect of vertical migration of hydrocarbons.The genetic model of hydrocarbon vertical distribution in caprock is established.Also discussed is the role which can be played by the regularities of hydrocarbon vertical distribution in cap rock in studies on cap rock and searching of gas reservoirs.

Key words: cap rock, hydracarbans, distributian, model, gas reservozra