杨悦舒;刘洛夫;徐正建;邵明礼;贾可心;窦文超;万青青;刘晓翔;宋兴沛;郭楚媛;

• 1:中国石油大学(北京)油气资源与探测国家重点实验室

• 2:中国石油大学(北京)盆地与油藏研究中心

• 3:中国石油吉林油田分公司勘探开发研究院

摘要(Abstract)：

松辽盆地德惠断陷下白垩统营城组地层埋藏深度较大、成岩作用与非均质性强,致密化程度高,勘探风险大。采用普通薄片、铸体薄片、扫描电镜、X线衍射等测试分析方法,分析碎屑岩储层的岩石学特征、物性和成岩作用,根据影响储层物性的主控成岩作用类型和物性特征,结合沉积相(微相)划分成岩相。结果表明:德惠断陷营城组碎屑岩储层主要经历机械压实作用,硅质、碳酸盐(方解石)、黏土矿物和浊沸石胶结作用,以及长石和岩屑溶蚀作用。营城组碎屑岩储层成岩相划分为3种类型:压实致密相、碳酸盐胶结相、不稳定矿物溶蚀相。其中不稳定矿物溶蚀相含气性最好,广泛分布在水下分支河道和水上分支河道微相砂体中,属于建设性成岩相。压实致密相和碳酸盐胶结相导致储层致密,属于不利于储层发育的成岩相。研究结果可为研究区储层分类和评价提供依据。

关键词(KeyWords)：成岩作用;成岩相;储层物性;德惠断陷;下白垩统;营城组;松辽盆地

Abstract:

Keywords:

基金项目(Foundation):中国石油吉林油田分公司项目(JS2016-W-13-JZ-9-18)

作者(Author):杨悦舒;刘洛夫;徐正建;邵明礼;贾可心;窦文超;万青青;刘晓翔;宋兴沛;郭楚媛;

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