随钻方位电磁波测井反演方法研究及在水平井中的应用  

Inversion methods study of azimuthal EM LWD tool and its applications in horizontal well

作　　者：张国华 张伟 吴意明 刘保银 徐大年 张中庆[3,4] 杨玉卿 张宏伟 

机构地区：[1]中海油服油田技术事业部,燕郊065201 [2]中海油深圳分公司开发部,深圳518067 [3]杭州迅美科技有限公司,杭州310012 [4]浙江大学,杭州310012

出　　处：《地球物理学进展》2017年第2期927-938,共12页Progress in Geophysics

摘　　要：针对随钻方位电磁波测井仪器测井响应特征进行考察,提出了水平井和大斜度井多层界面三维电阻率反演方法,获取准确的水平井/大斜度井地层电阻率剖面和井眼地层位置关系,为储层评价提供可靠依据.以哈里伯顿ADR方位电阻率测井数据为例,利用基于Marquardt方法的三维电阻率反演方法计算地层电阻率和多层边界距离等参数,数值模拟及实际处理井结果显示,反演方法精度较高,反演结果准确可靠.多层界面三维电阻率反演对储层精确评价和储量复算具有重要意义,在实时地质导向中具有广阔应用前景.Based on the simulation of the characteristics of the Azimuthal electromagnetic wave logging-while-drilling tools, in this paper we give an inversion method for horizontal well in multi-layered medium. Both the three dimensional resistivity profiles and the borehole location can be inverted from the measured data of EM LWD tools. In such a scenario, the reliable reservoir parameter can be applied for oil field development and production. In this paper, with Halliburton ADR azimuthal resistivity logging data, the iterative inversion method based on Marquardt theory is used to compute the layer＇s formation parameters, multi-boundary distances. The numerical results show that the inversion method is accurate and reliable.

关 键 词：多层界面反演 随钻测井 水平井 各向异性 水平电阻率 垂直电阻率 

分 类 号：P631[天文地球—地质矿产勘探]