杏子川油田长6低渗透储层有效厚度下限研究  

Research on the Minimum Net Pay Thickness for Chang-6 Oil Reservoirs with Low Permeability in Xingzichuan Oilfield

作　　者：王媛媛[1] 王桂成[1] 徐勇强[1] 周婷婷[1] 肖转[1] 

机构地区：[1]西安石油大学地球科学与工程学院,西安710065

出　　处：《地质科技情报》2013年第3期113-117,共5页Geological Science and Technology Information

基　　金：国家重点基础研究发展计划项目(2010CB214608)

摘　　要：从低渗透储层的地质特点出发,通过对储层"四性"关系的研究,建立了本区储层岩性、物性、含油性和电性的关系,以试油资料为依据,以岩心分析资料为基础,进行地质、录井、地球物理测井等资料的综合研究,并充分研究储层中不同岩性夹层的特征,采用钙质、泥质夹层测井曲线定量统计分析来确定夹层并加以扣除,确定出杏子川油田长6有效储层岩性下限为细砂岩,含油性下限为油斑,物性下限为孔隙度8%、渗透率0.15×10-3μm2,电性下限为R0.5大于21Ω.m,含水饱和度下限为60%。据此标准,综合利用多参数解释储层的有效厚度,提高了解释精度,为该油田的进一步开发提供了依据。In order to improve the calculation accuracy of oil reserves by volumetric method,it is necessary to do meticulous research on reservoir effective thickness in calculating oil and gas reserves.Xingzichuan Oilfield is a typical low permeability porosity lithologic oil reservoir.From the low permeability reservoir geological characteristics,this paper is based on the reservoir ＂four properties＂ relation and establishes the relationships among lithological property,physical property,oil-bearing property and the electrical property of reservoir.With the oil test and core analysis data as the basis,this paper also studies geological logging,geophysical well logging,and full of reservoir different lithologic dissection of the characteristics by using quantitative statistical analysis of the calcareous,muddy intercalations logging to determine the dissection.Through this standard,comprehensive utilization of multi-parameter interpretation and reservoir effective thickness is used to improve the precision of interpretation and lay a base for the further oilfield development.

关 键 词：低渗透储层 “四性”关系 有效厚度 杏子川油田 

分 类 号：P618.130.21[天文地球—矿床学]