摘要
低孔、低渗储层背景下发育的油藏往往具有复杂的控制因素,经常出现油水同产的现象,白豹油田延长组长4+5段油藏即属此类油藏。基于长4+5段储层的沉积相、物性、非均质性和构造等发育特征,分析了油藏类型及其在剖面和平面上的展布。研究认为:本区油藏属典型的岩性油藏,长4+511为主力产油层段,油藏分布尽管存在非均质性,但连片性较好。储层非均质性和鼻状构造对油藏的控制作用较为明显。
The reservoir with low porosity and permeability has complicated control factors,resulting in oil and water producing simultaneously.And Chang 4+5 member of Yanchang Formation in Baibao oilfield is typical.Its reservoir type and distribution in section and plane has been analyzed based on the member chanracteristics such as sedimentary facies,physical property,heterogeneity and structure.The research indicates that the reservoir belongs to a typical lithologic reservoir and its main oil producing interval is in Chang 4+511.The reservoir distribution shows some heterogeneity but flaky very well.In conclusion,the heterogeneity and nosing structure control the reservoir obviously.
出处
《天然气勘探与开发》
2009年第1期13-17,共5页
Natural Gas Exploration and Development
基金
国家重点基础研究发展规划项目(编号2003CB214603)
教育部"长江学者和创新团队发展计划"资助项目"能源盆地油气地质"(批准号:IRT0559)
中国石油长庆油田分公司项目联合资助
关键词
鄂尔多斯盆地
白豹油田
低孔
低渗
油藏分布特征
储层非均质性
Baibao oilfield,low porosity,low permeability,reservoir distribution feature,reservoir heterogeneity
