TY - GEN
T1 - Parameter Inversion Based on Levenberg-Marquardt Algorithm for Layered Formation Using Electromagnetic Wave Resistivity Tool
AU - Zhang, Rui
AU - Xu, Lijun
AU - Sun, Shijie
AU - Sun, Jiangtao
AU - Xie, Yuedong
AU - Suo, Peng
AU - Ni, Weining
AU - Li, Xin
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Electromagnetic wave resistivity tool
KW - Finite element method
KW - Levenberg-Marquardt method
KW - Logging while drilling
KW - Parameter inversion
UR - https://www.scopus.com/pages/publications/85124365757
U2 - 10.1109/IST50367.2021.9651368
DO - 10.1109/IST50367.2021.9651368
M3 - 会议稿件
AN - SCOPUS:85124365757
T3 - IST 2021 - IEEE International Conference on Imaging Systems and Techniques, Proceedings
BT - IST 2021 - IEEE International Conference on Imaging Systems and Techniques, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Conference on Imaging Systems and Techniques, IST 2021
Y2 - 24 August 2021 through 26 August 2021
ER -