基于数理推导的砂岩地层渗透率计算新模型  

New Calculation Model of Permeability in Sandstone Formation by the Mathematical Derivation

作　　者：谢伟彪[1] 周凤鸣[1] 司兆伟[1] 李颖[1] 殷秋丽 

机构地区：[1]冀东油田勘探开发研究院,河北唐山063004 [2]冀东油田工程监督中心,河北唐山063004

出　　处：《测井技术》2014年第5期553-557,共5页Well Logging Technology

基　　金：国家重大专项大型油气田及煤层气开发(No.2011ZX05006-006)资助

摘　　要：为提高砂岩油气藏渗透率测井计算精度,降低渗透率解释模型区域局限性,基于薄膜孔隙模型,通过数理推导,建立了砂岩储层渗透率计算新模型。该模型揭示了渗透率和单位体积与束缚水饱和度之差的平方成正比的新认识。基于岩心资料,通过与Timur模型及区域拟合模型计算结果的对比分析,验证了新模型具有精度高、适用性强的特点。该研究为砂岩油气藏渗透率测井计算提供了新途径。To improve the calculating accuracy and decrease the regional limitation of permeability by log interpretation model in sandstone reservoir, according to the membrane pore model, this article theoretically derives a new calculation model of permeability in sand shale reservoir from mathematical derivation, the model shows permeability and the square of the difference between unit volume and irreducible water saturation is proportional, and verifies rationality and applicability of the new model by the core data. In contrast with porosity fitting formula and Timur formula, the result of formula in this paper has higher accuracy. This study provides a new thought for permeability in sand reservoir evaluation.

关 键 词：测井解释 砂岩油气藏 渗透率计算模型 数理推导 束缚水饱和度 

分 类 号：P631.84[天文地球—地质矿产勘探]