分形测井解释方法研究  

Simple explanation on fractal well-log interpretation

作　　者：文环明[1] 李瑞[2] 马东辉[3] 杨光惠[2] 

机构地区：[1]河北科技大学,河北石家庄050054 [2]成都理工大学,四川成都610059 [3]河南油田通信公司,河南南阳473132

出　　处：《石油物探》2005年第2期124-127,5,共4页Geophysical Prospecting For Petroleum

摘　　要：将欧氏空间的体积概念在分形空间作适当推广,提出了岩石分形体积模型,并在此基础上推导了岩石分形 体积模型的测井响应方程,给出了非均质地层孔隙度的计算方法。同时,利用分形理论的幂定律,对泥质含量、 含水饱和度和渗透率等参数的计算公式作了改进,可以更好地适应非均质地层参数的计算。实际测井资料处理 结果表明,用分形测井解释方法计算的地层参数精度比常规方法的高。The volume concept in Euclidean space is reasonably extended to the fractal space, and the rock fractal volume model is described. Based on this model, the well-log response equation is deduced and the calculation of inhomoge-neous formation porosity. In addition, the important forms used to calculate the formation parameters, such as shale volume, water saturation and permeability, are improved to be more suitable for the calculation of inhomogeneous formation parameters according to the power law of fractals. It indicates that the precisions of formation parameters through the fractal well-log interpretation are highly according to the well-log data processing and the comparison among the core, fractal-calculated and normal-calculated porosities. The prospective view of this technique would be presented in the future well-log interpretation of inhomogeneous formation.

关 键 词：测井解释方法 体积模型 地层参数 地层孔隙度 含水饱和度 欧氏空间 响应方程 计算方法 分形理论 泥质含量 计算公式 处理结果 测井资料 常规方法 非均质 幂定律 等参数 渗透率 岩石 

分 类 号：P618.13[天文地球—矿床学] TQ028.8[天文地球—地质学]