石油与天然气地质 ›› 1995, Vol. 16 ›› Issue (2): 148-154.doi: 10.11743/ogg19950208

• 论文 • 上一篇    下一篇

东濮凹陷沙河街组碎屑岩成岩作用与有机质演化的关系

纪友亮, 赵澄林, 刘孟慧   

  1. 石油大学, 山东东营, 257062
  • 收稿日期:1992-01-18 修回日期:1994-07-14 出版日期:1995-06-25 发布日期:2012-01-16
  • 基金项目:

    “85”国家科技攻关项目阶段成果

DIAGENESIS OF CLASTIC ROCKS IN SHAHEJIE FORMATION, DONGPU DEPRESSION AND ITS RELATION TO ORGANIC MATTER EVOLUTION

Ji Youliang, Zhao Chenglin, Liu Menghui   

  1. University of Petroleum, Dongying, Shandong
  • Received:1992-01-18 Revised:1994-07-14 Online:1995-06-25 Published:2012-01-16

PDF (PC)

850

被引次数

46

摘要：

东濮凹陷下第三系沙河街组储层在纵向上有三个高碳酸盐含量带和4个次生孔隙发育带。有机质演化产生的CO2和有机酸造成浅部储层长石骨架颗粒和碳酸盐胶结物的溶解,产生第一个次生孔隙带；中、深部长石的溶蚀作用形成第2、第3个次生孔隙发育带；深部碳酸盐胶结物的溶蚀构成第4个次生孔隙发育带。

关键词: 东濮凹陷, 沙河街组, 成岩作用, 有机质演化, 次生孔隙带

Abstract:

Three high carbonate belts and four secondary pore belts developed vertically in the reservoir rocks of the Eogene Shahejie Formation in Dongpu Depression.CO2 and organic acid generated from organic matter evolution dissolved feldspar grains and carbonate cements in shallow beds and formed the first secondary pore belt;the dissolution of feldspar grains in median depth resulted in the second and third secondary pore belts;the dissolution of carbonate cement in deep beds formed the fourth secondary pore belt.