志丹油田F190井区延长组长4+5油藏储层特征研究  

Research on Reservoir Characteristics of Yanchang Formation Chang 4+5 Reservoir in F190 Well Block of Zhidan Oilfield

作　　者：冯紫娟 王成龙 谭虹 Feng Zijuan;Wang Chenglong;Tan Hong(ZhiDan oil production plant of YanChang Oilfield Co.,Ltd.,Yan'an 717500,China)

机构地区：[1]延长油田股份有限公司志丹采油厂,陕西延安717500

出　　处：《云南化工》2023年第4期107-109,共3页Yunnan Chemical Technology

基　　金：延长石油集团公司2020年科技计划基金项目(ycsy2020ky-C-13-2-2)。

摘　　要：利用研究区岩石镜下薄片、录井、压汞实验、扫描电镜、物性数据等资料,对志丹油田F190井区延长组长4+5储层特征及储层的成岩作用进行了分析。结果表明:研究区长4+5储层岩石类型主要以长石砂岩为主,孔隙类型主要是残余粒间孔隙和溶蚀孔隙,孔喉结构为细孔-细喉类型,孔隙度平均值10.77%,渗透率平均值1.03 mD,属于低孔隙度、特低渗透率储层。The characteristics of Chang 4+5 reservoir and diagenesis of Yanchang Formation in F190 well block of Zhidan Oilfield are analyzed by using microscopic thin section,logging data,mercury injection experiment,scanning electron microscope,physical property data and other data in the study area.The results show that the rock types of Chang 4+5 reservoir in the study area are mainly arkose,and the pore types are mainly residual intergranular pores and dissolution pores.The pore throat structure is fine pore fine throat type,with the average porosity of 10.77%and the average permeability of 1.03mD,belonging to low porosity and ultra-low permeability reservoir.

关 键 词：志丹油田 长4+5 储层特征 

分 类 号：TE122.23[石油与天然气工程—油气勘探]