[Oral Presentation]Research on wireless transmission performance of near-drill magnetic field

Research on wireless transmission performance of near-drill magnetic field

ID：53 Submission ID：78 View Protection：ATTENDEE Updated Time：2020-10-15 15:36:37 Hits：260 Oral Presentation

Start Time：2020-11-02 15:15 （Asia/Shanghai）

Duration：15min

Session：[E] Electrotechnical Theory and New Electromagnetic Technology » [E1] Session 5 and Session 10

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Abstract

The wireless transmission of near-bit signal can improve the accuracy of drilling trajectory control and increase the drilling speed, thereby bringing huge economic benefits. This paper establishes a wireless transmission model of magnetic field signals near the drill bit through ANSYS software to conduct finite element analysis. Through the controlled variable method, study the influence of the coil core and the coil cover on the magnetic field transmission performance. It is also pointed out that the slit cutting treatment of the coil cover can effectively reduce the eddy current loss, thereby improving the magnetic field transmission performance. At the same time, slit cutting can significantly increase the range of selectable excitation frequencies.

Keywords

finite element analysis,magnetic field transmission,magnetic flux,number of gaps

Speaker

Jiang Tao

School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

Submission Author

Jiang Tao School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

Ma Keqi School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

Li Hongbin Huazhong University of Science and Technology

Chen Qing Huazhong University of Science and Technology

Wang Qiang Sichuan Aerospace Fiberhome Servo Control Technology Co., Ltd.

Han Xiong CNPC Chuanqing Drilling Engineering Company Limited

Pang Dongxiao CNPC Chuanqing Drilling Engineering Company Limited