高频电磁波测井几何边界参数和物理参数的交替反演方法  

The Alternative Inversion on Geometric Boundary and Physical Parameters of High Frequency Electro magnetic Wave Logging

作　　者：张美玲[1] 王英武[1] 杨善德[2] 

机构地区：[1]大庆石油管理局测井公司 [2]吉林大学物理系

出　　处：《测井技术》2000年第z1期483-486,555,共4页Well Logging Technology

摘　　要：高频电磁波测井响应对地层纵向边界相当敏感 ,在其资料反演中必须重视地层纵向边界位置的提取和反演精度。以模式识别技术由测井曲线提取地层参数为反演初始地层模型 ,通过分别构造反演地层电参数和纵向边界位置的目标函数 ,采用改进的阻尼型高斯 -牛顿算法 ,实现对地层电参数和纵向边界位置的交替循环反演。对含 17个水平分层的典型地层模型的模拟测井资料的反演得到了较好的结果。Since the high frequency electromagnetic wave logging[KG-3]s responses are quite sensitive to the layers’ boundary, much attention must be paid to the precision of boundary parameters. First, the formation parameters are given by a pattern recognition technique, then on the basis of which the inversion initial models are built up. Via reconstructing the inversion objective functions of electric parameters and the geometrical boundary respectively, the alternative inversion of the electric parameters and the geometrical boundary parameters is made by using an improved damping form of Gauss Newton algorithm. The inversion result of the modelled log data from 17 horizontal layers are better.

关 键 词：电磁波测井 反演 阻尼 参数 边界条件 

分 类 号：TE27[石油与天然气工程—油气井工程] P631.81[天文地球—地质矿产勘探]