| 自适应hp-FEM在随钻电阻率测井仪器响应数值模拟中的应用 |
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| 引用本文： | 李辉,刘得军,刘彦昌,郭智勇,邢晓楠.自适应hp-FEM在随钻电阻率测井仪器响应数值模拟中的应用[J].地球物理学报,2012,55(8):2787-2797. |
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| 作者姓名： | 李辉 刘得军 刘彦昌 郭智勇 邢晓楠 |
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| 作者单位： | 中国石油大学(北京)地球物理与信息工程学院,北京 102249 |
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| 基金项目： | 国家自然科学基金(41074099)资助 |
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| 摘 要： | 随钻电阻率测井仪器响应数值模拟在电法测井仪器研制和资料处理与解释中具有重要的意义.本文利用自适应hp有限元算法(hp-FEM)模拟和分析了地层各向异性以及相对倾斜对仪器接收信号幅值比和相位差的影响,并对仪器响应特性进行了评价；同时,利用HERMES有限元软件包与VC++开发平台相结合,可以对随钻电阻率测井仪器响应数值模...
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| 关 键 词： | 随钻电阻率测井 数值模拟 自适应hp有限元 HERMES 幅值比 相位差 |
| 收稿时间： | 2012-02-16 |
Application of self-adaptive hp-FEM in numerical simulation of resistivity logging-while-drilling |
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| LI Hui
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LIU De-Jun
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LIU Yan-Chang
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GUO Zhi-Yong
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XING Xiao-Nan.Application of self-adaptive hp-FEM in numerical simulation of resistivity logging-while-drilling[J].Chinese Journal of Geophysics,2012,55(8):2787-2797. |
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| Authors: | LI Hui LIU De-Jun LIU Yan-Chang GUO Zhi-Yong XING Xiao-Nan |
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| Institution: | College of Geophysics and Information Engineering, China University of Petroleum, Beijing 102249, China |
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| Abstract: | Numerical simulation of resistivity logging-while-drilling (LWD) is important to the electrical well logging instrument design and logging data applications. In this paper, self-adaptive hp-FEM method is used to simulate and analyze the anisotropy of the stratum, and the influence of different dipping angles which can change the amplitude ratio and phase difference of the receive signal from the instrument, the response characteristic is also evaluated. Meanwhile, the finite element analysis software HERMES and VC++ development platform are combined as a tool to reflect the electric field distribution in the stratum and at the boundary, which can provide the effective information in drilling geosteering. Numerical illustration results show that the self-adaptive hp-FEM method has the ability of fast convergence and high computing accuracy. Thus, self-adaptive hp-FEM is an effective method for numerical simulation of electrical logging. |
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| Keywords: | Resistivity logging-while-drilling Numerical simulation Self-adaptive hp-FEM HERMES Amplitude ratio Phase difference |
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