全非均质贴井壁电阻率测井的三维有限元模拟  

3-D FINITE ELEMENT SIMULATION AGAINST SIDEWALL RESISTIVITY LOGIN ALL HETEROGENEOUS MEDIA

作　　者：刘明新[1] 陈国华[2] 张曦[2] 唐永福[2] 

机构地区：[1]北京石油勘探开发研究院 [2]大庆石油管理局测井公司

出　　处：《大庆石油地质与开发》1992年第4期61-66,共6页Petroleum Geology & Oilfield Development in Daqing

摘　　要：本文给出了用矩形三线性的三维有限元法对贴井壁电阻率测井仪的测井响应进行数值模拟的方法及软件。该软件将井筒、心柱、贴井壁极板部分以及泥饼、冲洗带、侵入带、目的层、上下围岩均作为不同的介质区加以考虑,并实现了对全非均质的测井响应进行连续计算。其计算结果和解析解的对比误差小于3％,已达到科研生产使用标准。<ABSTRACT> A method and software of 3-finite element method of rectangular trilinear is used to simulate log response of against sidewall resistivity log. Wellbore, spindle, against sidewall polar board, mud cake, flushed zone, invaded zone, bed of interest and overlying and underlying adjacent rocks are all considered as different medium and well log response in all heterogeneous media can be continuously calculated, corresponding error of calculated re- sult and analytical solution is less than 30%, which reaches usable standard of scientific re- search and production.

关 键 词：测井 电阻率 贴井壁 有限元 模拟 

分 类 号：P631.81[天文地球—地质矿产勘探]