石油与天然气地质 ›› 1994, Vol. 15 ›› Issue (3): 208-215.doi: 10.11743/ogg19940304

• 论文 • 上一篇    下一篇

冀中饶阳凹陷下第三系沙河街组第三段砂岩次生孔隙形成机制

张以明1, 侯方浩1, 方少仙1, 朱连儒2, 陶洪兴2   

  1. 1. 西南石油学院, 四川南充637001;
    2. 华北石油管理局, 河北任丘062552
  • 收稿日期:1991-06-05 修回日期:1994-07-20 出版日期:1994-09-25 发布日期:2012-01-16

SECONDARY PORE FORMATION MECHANISM OF THIRD MEMBER OF SHAIJEJIE FORMATION,RAOYANG DEPRESSION

Zhang Yiming1, Hou Fanghao1, Fang Shaoxian1, Zhu Lianru2, Tao Hongxing2   

  1. 1. Southcest Petroleum Institute, Nanchang, Sichuan;
    2. North China Petroleum Administration, Renqiu, Hebei
  • Received:1991-06-05 Revised:1994-07-20 Online:1994-09-25 Published:2012-01-16

PDF (PC)

461

被引次数

29

摘要：

沙河街组第三段砂岩在纵向上存在三个次生孔除发育带,借集空间均以长石的次生溶孔为主.有机质脱羧产生的酸性组分、特定成岩环境中矿物相之间的平衡反应和局部有利的孔隙保存条件,是研究区次生孔除发育和保存的主要原因.结合区域沉积环境、构造特点、埋藏成岩史,预测划分出三个有利地带.

关键词: 饶阳凹陷, 沙河街组, 长石砂岩, 次生孔隙, 形成机制

Abstract:

Three developmental zones of secondary pores could be recognized vertically in the 3rd member feldspathic sandstone of the Shahejie Formation.The pore spaces are primarily feldspathic dissolution pores.The acidic composition resulted from organic matter decarboxylation,balance-reactinons between mineral phrases in special diagenetic environment and favourable conservation conditions in local places are the main cause for the development and preservation of the secondary pores in study area.three favourable zones have been divided in prediction according to their depositional environment, structural feature and burial diagenetic history.