准噶尔盆地阜北地区下侏罗统三工河组二段成岩作用及成岩相

发布时间：2018-01-11 08:12

本文关键词：准噶尔盆地阜北地区下侏罗统三工河组二段成岩作用及成岩相　出处：《地质通报》2017年04期 　论文类型：期刊论文

【摘要】：利用铸体薄片、扫描电镜、X-衍射、物性、压汞等分析化验资料,对阜北地区下侏罗统三工河组二段储层岩石学特征、物性及孔隙结构特征、成岩作用、成岩矿物、成岩环境、所处成岩阶段、成岩演化序列、成岩相等进行研究。结果表明,阜北地区三工河组二段储层砂岩现今已进入中成岩B期,主要发育压实压溶、胶结、溶蚀等成岩作用,压实作用和胶结作用是孔隙度降低的主要原因,溶蚀作用形成的次生孔隙在一定程度上改善了储层物性。根据成岩作用类型和强度、成岩矿物及其对储层物性的影响,划分出3种成岩相:中等压实弱胶结弱溶蚀相、中等压实中等胶结中等溶蚀相、中等压实强胶结中等溶蚀相,其中,中等压实弱胶结弱溶蚀相和中等压实中等胶结中等溶蚀相为有利成岩相带。
[Abstract]:The petrological characteristics, physical properties and pore structure characteristics, diagenesis and diagenesis of the reservoir of the second member of the Lower Jurassic Sangonghe formation in Fubei area were studied by using the thin cast, scanning electron microscope (SEM), X-ray diffraction, physical properties, mercury injection and other analytical data. Diagenetic minerals, diagenetic environment, diagenetic stage, diagenetic evolution sequence and diagenetic facies are studied. Compaction, cementation, dissolution and other diagenesis are mainly developed. Compaction and cementation are the main reasons for the decrease of porosity. Secondary pores formed by dissolution improve reservoir physical properties to some extent. According to diagenesis type and strength diagenetic minerals and their effects on reservoir physical properties are discussed. There are three diagenetic facies: medium compacted weak cemented weak dissolution medium compacted medium cemented medium dissolved and medium compacted cemented medium dissolved. The medium compacted weak cemented weak dissolution and medium compacted medium cemented intermediate dissolution facies are favorable diagenetic facies zones.
【作者单位】：成都理工大学沉积地质研究院;油气藏地质及开发工程国家重点实验室(成都理工大学);中国石油新疆油田公司实验检测研究院;中国石油大学(北京)克拉玛依校区;
【基金】：国家自然科学基金项目《准噶尔盆地乌尔禾地区二叠纪咸化湖盆热液喷流活动的比较沉积学研究》(批准号:4157021099)
【分类号】：P618.13
【正文快照】： 1.成都理工大学沉积地质研究院,四川成都610059;2.油气藏地质及开发工程国家重点实验室(成都理工大学),四川成都610059;3.中国石油新疆油田公司实验检测研究院,新疆克拉玛依834000;4.中国石油大学(北京)克拉玛依校区,新疆克拉玛依8340001.Institute of Sedimentary Geology,Ch

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