富县探区上三叠统延长组长3油藏储集因素  

Oil accumulation factors of Chang3 oil reservoir of Yanchang formation of upper triassic in Fuxian exploration area

作　　者：郭艳琴[1] 刘昊伟[2] 李宽亮[3] 吉朝辉[3] 杨华[3] 冯辉[3] 刘艳[3] 

机构地区：[1]西安石油大学油气资源学院,陕西西安710065 [2]中国石油勘探开发研究院,北京10083 [3]延长油田股份有限公司,陕西延安717111

出　　处：《西安科技大学学报》2009年第1期73-77,共5页Journal of Xi’an University of Science and Technology

基　　金：国家重点基础研究发展规划项目(2003CB214602);陕西省自然科学基础研究计划项目(2006z02)

摘　　要：富县探区长3油层组储层砂体累计厚度较大,粒度细,沉积相变快,储层物性纵、横向具有明显的非均质性;影响石油富集成藏的储集因素包括岩石学组分、沉积相、砂体展布、成岩作用及物性等;沉积相是最主要的因素,三角洲平原分流河道和前缘水下分流河道砂体是主要的储集体。富县探区下一步勘探重点应在分流河道和水下分流河道砂体带上寻找次生孔隙发育区。The oil-beating sand of Chang 3 reservoir in Fuxian exploration area is thick bed, fine grain, faster change of sedimentary facies, and reservoir physical property has obvious heterogeneity from both the vertical and horizontal. Further research showed that reservoir factors that affect oil accumulation include petrological component, sedimentary facies, sand body distribution, diagenesis, and physical property, etc, among which sedimentary facies are the most important one. Major reservoir is sand bodies of distributary channels in delta plain and subaquatic distributary channels in delta fronts. With the above research, it has indicated that the next exploration point is looking for the reach where secondary pore growthing in the sand bodies of distributary channels in delta plain and subaquatic distributary channels.

关 键 词：富县探区 延长组长3油藏 储集因素 沉积相 

分 类 号：TE122.24[石油与天然气工程—油气勘探]