鄂尔多斯盆地W102井区长6储层成岩作用研究  

Diagenesis of Chang 6 Reservoir in Well W102 Area,Ordos Basin

作　　者：黄瑞丽 王桂成 黄英 胡晨辉 HUANG Ruili;WANG Guicheng;HUANG Ying;HU Chenhui(School of Earth Sciences and Engineering Shaanxi Key Laboratory of Petroleum Accumulation Geology,Xi′an Shiyou University,Xi′an 710065,China)

机构地区：[1]西安石油大学地球科学与工程学院陕西省油气成藏地质学重点实验室,西安710065

出　　处：《重庆科技学院学报（自然科学版）》2024年第1期1-6,共6页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：陕西省自然科学基金项目“鄂尔多斯盆地南缘三叠系延长组优质烃源岩中碳酸岩的发现及其成因研究”(2017JQ4007)。

摘　　要：通过铸体薄片观察和电镜扫描等检验方法,对鄂尔多斯盆地劳山地区W102井区长6储层的储层特征及成岩作用作了研究。研究结果表明:W102井区长6储层的岩石类型主要为灰色细粒长石砂岩,储层为典型的低孔—超低孔、特低渗—超低渗储层。此外,主要成岩作用包括压实作用、胶结作用和溶蚀作用:成岩期间的压实作用为破坏性成岩作用,对储层物性的影响不具主导性;胶结作用复杂,对孔隙度的影响较大;溶蚀作用表现为建设性成岩作用,溶蚀率增大对储层孔隙度和渗透率的改善具有积极作用。The reservoir characteristics and diageness of Chang 6 reservoir in well W102 area in Laoshan area of Ordos Basin were studied based on casting thin section and scanning electron microscope.The research results show that the rock type of Chang 6 reservoir in well W102 is mainly gray fine-grained arkose,and the reservoir is a typical low porosity-ultra low porosity,ultra low permeability-ultra low permeability reservoir.In addition,compaction during diagenesis is destructive diagenesis and has no dominant influence on reservoir physical properties;The cementation is complex and has great influence on porosity;The dissolution is constructive diagenesis,and the increase of dissolution rate has a positive effect on the improvement of reservoir porosity and permeability.

关 键 词：长6储层 储层空间 储层物性 孔隙结构 成岩作用 压实作用 胶结作用 溶蚀作用 

分 类 号：P618[天文地球—矿床学]