| 随钻电磁波测井影响因素分析 |
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| 引用本文： | 孙金浩,范炜.随钻电磁波测井影响因素分析[J].国外测井技术,2010(3):52-57. |
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| 作者姓名： | 孙金浩 范炜 |
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| 作者单位： | 长城钻探测井公司,辽宁盘锦124011 |
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| 摘 要： | 随钻电磁波电阻率测井的影响因素包括井眼、仪器偏心、井轴与地层相对夹角、各向异性、围岩、电介质和泥浆侵入等。通过不同的模型可以研究随钻电磁波电阻率测井的响应,对于随钻电磁波电阻率测井的正反演模拟与解释都有重要的指导意义,本文以贝光休斯MPR仪器为模拟仪器,介绍了利用XFDTD方法模拟井下情况所得到的这些环境因素影响的实验结果。
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| 关 键 词： | 随钻电磁波 相位差 幅度比 相移电阻率 衰减电阻率 XFDTD 井径变化 泥浆介电常数 围岩影响 井斜角和地层各向异性 介电常数 |
THE INFLUENCING FACTORS OF ELECTROMAGNETIC WELL LOGGING |
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| Abstract: | The influencing factors of LWD electromagnetic resistivity logging include borehole,eccentricity of tool,separation angle between well axle and formation,anisotropy,surrounding rock,dielectric medium and mud invasion,etc.The response of LWD electromagnetic resistivity well logging can be studied with different models,which is of significance to the forward and inverse simulating and interpretation.Taking Baker ?Hoghes tool as the simulating tool,the paper introduces the experimental result of the environmental influencing factors through simulating downhole condition with XFDTD method. |
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| Keywords: | LWD electromagnetic wave phase difference XFDTD mud dielectric constant shoulderbed effect anisotropy of formation |
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