一种同时反演地层水电阻率和含水饱和度的方法  

AN INVERSION METHOD TO DETERMINE FORMATION WATER RESISTIVITY AND WATER SATURATIONS SIMULTANEOUSLY

作　　者：贺国芬[1] 袁洪林[1] 路涛 陈开运[1] 宋佳瑶[1] 

机构地区：[1]西北大学大陆动力学国家重点实验室,陕西西安710069 [2]中油测井有限公司技术中心,陕西西安710021

出　　处：《国外测井技术》2010年第1期37-39,42,共4页World Well Logging Technology

基　　金：中石油部属基金:柴达木盆地地球物理勘探技术方法攻关(项目编号:07-01Z-01-01)资助

摘　　要：对于低孔低渗、泥质含量较高的泥质砂岩储层，我们提出了一种新的模型来反演地层水电阻率和含水饱和度。它首先对阿尔奇公式进行了泥质校正和粘土附加导电校正，同时采用变m指数部分补偿了低孔低渗的影响，然后利用得到的模型通过规划求解的方法同时反演得到了含水饱和度和地层水电阻率。计算结果与试油资料的对比证实了该方法的可行性。A new model is proposed to determine the formation water resistivity and water saturation of shaly sandstone reservoirs with low porosity, low permeability an d high shale content.It introduces shale calibration to Archie equation,involves additional conductivity of clay,and adopts alterable m parameter to diminish the influence of low porosity and low permeability in some extent.Then formation water resistivity and water saturation can be obtained by applying program solving method to this model.It is proved by comparing the calculation with well testing results that this method is feasible.

关 键 词：地层水电阻率 含水饱和度 阿尔奇公式 规划求解 泥质砂岩 泥质校正 粘土附加导电校正 

分 类 号：TE311[石油与天然气工程—油气田开发工程]