利用传播电阻率测井仪器提取薄交互储层参数  

Picking Parameters of Thin Interbed Formation with the Multiple Propagation Resistivity Logging Tool

作　　者：康俊佐[1] 王翠[1] 关立强[1] 

机构地区：[1]青岛科技大学物理系,山东青岛266042

出　　处：《延边大学学报（自然科学版）》2008年第1期31-34,共4页Journal of Yanbian University（Natural Science Edition）

基　　金：青岛科技大学引进人才科研启动资金资助项目

摘　　要：多传播电阻率测井仪器可提供多条相位差和多条幅度比测井曲线,从它的全部测井曲线中选出探测深度分布合理的5条曲线作为资料处理的主要依据,利用所选出的5条测井曲线可直观识别出薄互层,但一般还不能由视电阻率曲线直接获得地层电阻率的真值.应用改进的正则化阻尼型高斯-牛顿优化算法,通过对多传播电阻率测井仪器模拟资料的二维反演,对薄互层地层模型得到了较好的反演结果,显著提高了资料的解释精度.Multiple propagation resistivity logging tool provides four phase difference curves and four amplitude ratio curves. Three phase difference curves and two amplitude ratio curves were selected out from the eight logging curves. Using the selected five curves, the thin interbeds can be identified through the senses. However, the true value of formation resistivity can not be obtained directly from these apparent resistivity curves in general. This paper carried out the two-dimension inversion of its synthetic data by using an improved damping regularized Gauss-Newton optimization algorithm. The satisfying inversion results are obtained for thin interbeds.

关 键 词：薄互层 二维反演 高斯-牛顿优化算法 

分 类 号：TE151[石油与天然气工程—油气勘探]