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Dual laterolog borehole correction based on dynamic tool constants

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Abstract

The positive and negative difference of deep and shallow resisitivity in formation without invasion is caused mainly by the fixed two tool constants from numerical simulations. A dynamic calibration method for tool constants is proposed based on the effects of the mud and formation resisitivity ratio on the two constants calculated using the finite element method (FEM). Finally, four specific examples are given to validate the dynamic calibration method. It is an automatic borehole correction method and can give more accurate formation resistivity. The method is useful for dual laterolog logging.

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Authors and Affiliations

  1. State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, China

    Xin Wang, Hao Chen & Xiu-Ming Wang

Authors
  1. Xin Wang
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  2. Hao Chen
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  3. Xiu-Ming Wang
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Additional information

This work was supported by the National Natural Science Foundation of China (Grant No. 11134011).

Wang Xin was awarded his PhD from Graduate University of Chinese Academy of Sciences in 2012. Now, he works at SINOPEC East China Company. His research interests focus on geophysical well logging.

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Wang, X., Chen, H. & Wang, XM. Dual laterolog borehole correction based on dynamic tool constants. Appl. Geophys. 9, 414–420 (2012). https://doi.org/10.1007/s11770-012-0353-1

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  • DOI: https://doi.org/10.1007/s11770-012-0353-1

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