Investigation of eccentricity effects and depth of investigation of azimuthal resistivity LWD tools using 3D finite difference method
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- 作者：Hu Lia ; Hua Wangb ; wanghuaupc@126.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Azimuthal resistivity Logging-While-Drilling tools ; Alternative direction implicit finite difference method in time domain (ADI-FDTD) ; Locally-conformal FDTD ; Eccentricity effects ; Depth of investigation
- 刊名：Journal of Petroleum Science and Engineering
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：143
- 期：Complete
- 页码：211-225
- 全文大小：5494 K
文摘
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A ADIFDTD is used to simulate the Azimuthal resistivity tools' responses in complex borehole condition.
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A LC-FDTD is used to avoid stair-like discretization errors of the formation interface and tool eccentricity.
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The effects of eccentering offset and azimuth on ARLWD tools are investigated.
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The depth of investigation of ARLWD tools is studied which are of great importance in the design of azimuthal resistivity tools