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Parameter Inversion Based on Levenberg-Marquardt Algorithm for Layered Formation Using Electromagnetic Wave Resistivity Tool

  • Beihang University
  • SINOPEC

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electromagnetic wave resistivity tool in logging-while-drilling (LWD) technology can provide real-time conductivity information of the surrounding formation and plays a crucial role in geo-steering, drilling optimization and reservoir evaluation. In this paper, a parameter inversion method based on Levenberg-Marquardt (LM) algorithm is proposed to estimate the conductivity and thickness of the layered-formation model. The finite element method (FEM) was used to solve the forward problem, i.e., to obtain the response of the electromagnetic wave resistivity (EWR) tool and Jacobian matrix. The solution of the forward problem solved by the FEM was compared with the theoretical solution. The influence of the conductivity and thickness on the response of the LWD tool was analyzed. Finally, numerical experiments were carried out to evaluate the accuracy of the proposed method.

Original languageEnglish
Title of host publicationIST 2021 - IEEE International Conference on Imaging Systems and Techniques, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728173719
DOIs
StatePublished - 2021
Event2021 IEEE International Conference on Imaging Systems and Techniques, IST 2021 - Virtual, New York, United States
Duration: 24 Aug 202126 Aug 2021

Publication series

NameIST 2021 - IEEE International Conference on Imaging Systems and Techniques, Proceedings

Conference

Conference2021 IEEE International Conference on Imaging Systems and Techniques, IST 2021
Country/TerritoryUnited States
CityVirtual, New York
Period24/08/2126/08/21

Keywords

  • Electromagnetic wave resistivity tool
  • Finite element method
  • Levenberg-Marquardt method
  • Logging while drilling
  • Parameter inversion

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