邢恩浩;田景春;林小兵;肖玮绮;陈威振;邢浩婷;

• 1:成都理工大学油气藏地质及开发工程国家重点实验室

• 2:成都理工大学沉积地质研究院

• 3:中国石油青海油田分公司勘探开发研究院

摘要(Abstract)：

利用钻井岩心、铸体薄片、扫描电镜、物性分析、包裹体测温等资料,结合盆地埋藏演化史,研究东营凹陷胜坨地区沙四上亚段浊积扇致密砂砾岩储层成岩作用及孔隙度演化过程。结果表明:研究区沙四上亚段浊积扇致密砂砾岩储层现今孔隙度为8.75%,发育压实作用、胶结作用、溶蚀作用及两期油气充注;典型成岩—油气充注序列表现为早期绿泥石胶结—早期油气充注—早期溶蚀作用—石英次生加大/自生石英—压实作用—黏土胶结—方解石胶结—白云石胶结—晚期油气充注—石英溶蚀—晚期溶蚀作用—晚期黄铁矿胶结,储层成岩阶段达到中成岩B期;恢复储层原始孔隙度为34.53%,压实作用减孔率达到72%,各期胶结作用持续降低孔隙度,溶蚀作用调整和保存孔隙,浊积扇砂砾岩储层经历早期成藏—致密—边成藏边致密的过程。该研究结果可为东营凹陷致密储层的研究提供参考。

关键词(KeyWords)：致密砂砾岩储层;浊积扇;成岩作用;孔隙演化;沙四上亚段;东营凹陷

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2016X05007-004-002);; 中国石油化工股份有限公司科技攻关项目(30200018-15-ZC0613-0075);; 成都理工大学沉积地质学科研创新团队项目(KYTD201703)

作者(Author):邢恩浩;田景春;林小兵;肖玮绮;陈威振;邢浩婷;

Email:

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