石油与天然气地质 ›› 1990, Vol. 11 ›› Issue (2): 187-194.doi: 10.11743/ogg19900207

• 论文 • 上一篇    下一篇

东濮凹陷马厂地区渐新统沙河街组沙三(3) 亚段的成岩作用与油气关系

寿建峰, 袁政文   

  1. 中原油田
  • 收稿日期:1989-04-17 修回日期:1989-09-15 出版日期:1990-06-25 发布日期:2012-01-16

DIAGENESIS OF OLIGOCENE SHA-3 (3) SUBMEMBER IN MACHANG REGION,DONGPU DEPRESSION AND ITS RELATION TO HYDROCARBON

Shou Jianfeng, Yuan Zhengwen   

  1. Zhongyuan Oilfield
  • Received:1989-04-17 Revised:1989-09-15 Online:1990-06-25 Published:2012-01-16

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摘要：

马厂地区渐新统沙河街组沙三(3)亚段为大型推进式三角洲沉积。在埋藏成岩过程中经历了以组份溶蚀作用和溶蚀-沉淀作用为主的成岩变化。一次溶蚀作用产生于生油高峰期前,形成的溶孔是油气聚集的有效储集空间;二次溶蚀作用发生于生油高峰期后,热裂解气形成之前,对深部和超深部天然气的聚集具有重要意义。

关键词: 成岩作用, 孔隙演化, 沙河街组, 东濮凹陷

Abstract:

The Oligocene Sha-3 (3) submember in Machang region,Dongpu Depression is a large progressive deltaic deposit.It mainly underwent component-dissolution and dissolved-precipitation during the process of burial diagenesis.The first dissolution oc-curred prior to the peak period of hydrocarbon generation,and the dissolved pores areavailable spaces for hydrocarbon accumulation;the second dissolution happened after thepeak period and prior to the formation of cracking gas,the pores formed may have consid-erable significance for gas accumulation in deep and superdeep strata.