费尔干纳盆地M区块碎屑岩储层四性关系特征

Study on four property relationship of clastic reservoir in M block Fergana basin

费尔干纳盆地M区块Ⅳ号储层属于特低渗透储层,测井解释难度大,因此摸清储层"四性"关系,对正确评价储层含油性至为关键。通过录井、测井、岩心分析化验、水分析和试油等资料的收集、整理、校正、分析,明确了该区储层岩性、物性、含油性和电性特征及其相互关系,建立测井解释参数模型,确定Ⅳ号储层油水层电性划分标准和有效厚度下限标准,为该区剩余油评价和开发方案的制定奠定了坚实的基础。

The Ⅳ layer in M block belongs to ultra low permeability reservoir,which is difficult to explain in logging. It can＇t correctly evaluate oil-bearing until find out four property relationship of reservoir. Through collecting,collating,calibrating and analyzing of data from well logging,core analysis,water analysis and formation test,the features and correlations are identified between four reservoir characteristics（ lithology,physical property,oil-bearing characteristics and electronic properties）. The models of log interpretation parameters are established by researching. In addition,the criteria of both electronics identification and lower limit of thickness in oil/water Ⅳ layer are determined on the basis on these studies. As result,these lay a solid foundation for evaluating oil remaining and planning development program in M block.