| 水平井中随钻电阻率实时确定地层界面方法 |
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| 引用本文： | 陈华,范宜仁,邓少贵,李智强,杨震.水平井中随钻电阻率实时确定地层界面方法[J].吉林大学学报(地球科学版),2011,41(5):1623-1629. |
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| 作者姓名： | 陈华 范宜仁 邓少贵 李智强 杨震 |
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| 作者单位： | 中国石油大学测井重点实验室/数学与计算科学学院,山东东营,257061;中国电波传播研究所,河南新乡,453003;中国石油大学测井重点实验室/数学与计算科学学院,山东东营257061;中国航天科工集团第三研究院,北京100074 |
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| 基金项目： | 国家油气科技专项项目(2008ZX05035-02); 山东省自然科学基金项目(Y2007F25); 中央高校基本科研业务费专项项目(09CX04001A) |
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| 摘 要： | 实时确定地层界面是水平井地质导向钻井中的重要问题之一.考虑到泥浆电阻率、井眼在一定范围内对随钻电磁波影响较小,把三维地层模型简化为一维地层模型,大大减少了正演计算量.利用马奎特方法对其进行了实时反演计算,获得了仪器与地层界面之间的距离.实验表明,所确定的地层界面位置与实际相吻合,能够控制仪器的运行轨迹,使井眼保持在期望...
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| 关 键 词： | 测井 随钻电磁波 地质导向 马奎特方法 地层界面 |
Methods for Real-Time Determination of Formation Boundary with LWD Resistivity Logs in Horizontal Wells |
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| CHEN Hua,FAN Yi-ren,DENG Shao-gui,LI Zhi-qiang,YANG Zhen.Methods for Real-Time Determination of Formation Boundary with LWD Resistivity Logs in Horizontal Wells[J].Journal of Jilin Unviersity:Earth Science Edition,2011,41(5):1623-1629. |
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| Authors: | CHEN Hua FAN Yi-ren DENG Shao-gui LI Zhi-qiang YANG Zhen |
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| Institution: | CHEN Hua1,FAN Yi-ren1,DENG Shao-gui1,LI Zhi-qiang2,YANG Zhen1,3 1.Key Laboratory of Welllogging/College of Mathematics and Computational Science,China University of Petroleum,Dongying 257061,Shandong,China 2.China Research Institute of Radiowave Propagation,Xinxiang 453003,Henan,China 3.The 3rd Academy of China Aerospace Science and Industry Corporation,Beijing 100074,China |
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| Abstract: | Real-time determination of formation boundary is one of the key problems in geological directional drilling of horizontal wells.Considering mud resistivity and borehole have less effect on LWD electromagnetic wave in a certain range,3D formation model was simplified as 1D formation model,the forward computation time can be reduced greatly.The distances between instrument and formation boundary are reconstructed using the real time inversion of marquardt method.Experiment result shows that computed location ... |
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| Keywords: | well logging LWD electromagnetic wave geo-steering Marquardt method formation boundary |
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