东营凹陷沙河街组三段地层特征及典型成岩矿物组合研究RESEARCH ON THE STRATIGRAPHIC FEATURES AND THE TYPICAL DIAGENETIC MINERALS OF THE MEMBER 3 OF SHAHEJIE FORMATION,DONGYING DEPRESSION
刘宁,张守鹏,王伟庆,郝运轻
摘要(Abstract):
在对东营凹陷沙河街组三段地层特征、成岩矿物在不同构造带分布研究基础上,探讨了自生黄铁矿、含铁碳酸盐等典型成岩矿物的形成及其与油气的关系。针对自生黄铁矿-碳酸盐矿物-自生石英矿物组合,提出了示烃球的新认识并将其分为两大类,I型示烃球主要分布于含油性较好层段,II型示烃球主要分布于烃类活动相对较弱的非含油层段。烃类活动导致自生黄铁矿的形成,这是形成示烃球的重要原因。
关键词(KeyWords): 黄铁矿;碳酸盐矿物;示烃球;沙河街组;古近系;东营凹陷;山东
基金项目(Foundation): 中国石化胜利油田分公司科技重点攻关项目《示烃成岩矿物与油气成藏关系研究》(NoYKK0511)
作者(Author): 刘宁,张守鹏,王伟庆,郝运轻
DOI: 10.19839/j.cnki.dcxzz.2007.s2.022
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