STG盆地碳酸盐岩潜山储层特征及成藏模式

发布时间：2018-01-13 00:05

本文关键词：STG盆地碳酸盐岩潜山储层特征及成藏模式　出处：《特种油气藏》2017年04期 　论文类型：期刊论文

【摘要】：针对STG盆地碳酸盐岩潜山分布范围不清、储集空间类型多样、油气成藏规律认识不清等问题,综合运用地震地层学及储层地质学研究方法,结合三维地震资料,利用岩心及薄片观察、测井岩性等手段进行识别。结果表明:研究区碳酸盐岩潜山平面上主要发育在盆地西北部,储层岩石类型有灰岩、生物灰岩、白云质灰岩、泥质灰岩、灰质泥岩5种,储层具有裂缝-溶蚀孔洞复合储集空间特征。在此研究基础上,结合勘探实践,建立了研究区潜山油气成藏模式,对该区的潜山勘探实践具有一定的指导意义。
[Abstract]:Aiming at the problems of unclear distribution range of carbonate buried hill in STG basin, various types of reservoir space and unclear understanding of oil and gas accumulation law, seismic stratigraphy and reservoir geology research methods are used synthetically. Combined with 3D seismic data, core and thin slice observation, logging lithology and other means are used to identify. The results show that the carbonate buried hill plane in the study area is mainly developed in the northwest of the basin, and the reservoir rock type is limestone. There are five types of biolimestone, dolomite, argillaceous limestone and lime-mudstone. The reservoir has the characteristics of fracture-dissolution pore complex reservoir space. On the basis of this study, combined with exploration practice. The oil and gas accumulation model of buried hill in the study area is established, which is of certain guiding significance to the exploration practice of buried hill in this area.
【作者单位】：中国石油辽河油田分公司;
【基金】：国家科技重大专项“海外重点风险项目勘探综合配套技术”(2011ZX05029) 中国石油国际竞标项目子课题“STG盆地潜山综合地质研究及勘探目标优选项目”(BGPYJY2013-724)
【分类号】：P618.13
【正文快照】： 0引言STG盆地位于哈萨克斯坦国中部,乌拉尔山脉东麓,为近南北向展布的大型长轴盆地,盆地总面积约为80 000 km2,属于海西基底之上的中生代沉积坳陷,自西向东发育4个北西—南东向展布的凹陷,即:西部的阿雷斯库姆凹陷、中央的阿克沙布拉克凹陷、东部的鲍金根凹陷及东北部萨雷兰凹

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