Design of an Intelligent Control System for Compound Directional Drilling in Underground Coal Mines

Author:

Li Wangnian1234ORCID,Wu Min1235ORCID,Chen Shipeng123ORCID,Mu Lingfeng235ORCID,Lu Chengda123ORCID,Chen Luefeng123ORCID

Affiliation:

1. School of Automation, China University of Geosciences, No.388 Lumo Road, Hongshan District, Wuhan, Hubei 430074, China

2. Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems, No.388 Lumo Road, Hongshan District, Wuhan, Hubei 430074, China

3. Engineering Research Center of Intelligent Technology for Geo-Exploration, Ministry of Education, No.388 Lumo Road, Hongshan District, Wuhan, Hubei 430074, China

4. China Coal Technology Engineering Group (CCTEG) Xi’an Research Institute (Group) Co., Ltd., No.82 Jinye 1st Road, Gaoxin District, Xi’an, Shaanxi 710077, China

5. School of Future Technology, China University of Geosciences, No.388 Lumo Road, Hongshan District, Wuhan, Hubei 430074, China

Abstract

The compound directional drilling process, including slip and rotation, is the key to realizing long-hole drilling in coal mines. First, a compound directional drilling process control scheme is proposed to realize intelligent control of the directional drilling process. An intelligent drilling process optimization method was designed to improve drilling efficiency. A robust controller for the drilling rate based on gain scheduling was designed to achieve stable control of the drilling rate during sliding deflection drilling. A robust controller based on hybrid sensitivity was designed to achieve stable control of the drilling rate during rotary inclined stabilization drilling. The results of this study can provide a theoretical basis for realizing the intelligent optimization and control of compound directional drilling in coal mines.

Funder

National Natural Science Foundation of China

Higher Education Discipline Innovation Project

Shanxi Provincial Key R&D Program

Tiandi Technology Co., Ltd.

Publisher

Fuji Technology Press Ltd.

Reference24 articles.

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2. J. Zhao et al., “Composite directional drilling technology in underground coal mine,” Coal Geology & Exploration, Vol.46, No.4, pp. 202-206, 2018 (in Chinese). https://doi.org/10.3969/j.issn.1001-1986.2018.04.033

3. Z. Shi et al., “40 years of development and prospect on underground coal mine tunnel drilling technology and equipment in China,” Coal Science and Technology, Vol.48, No.4, pp. 1-34, 2020 (in Chinese). 10.13199/j.cnki.cst.2020.04.001

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5. Q. Li et al., “Efficient drilling technique of 2311 m ultra-long directional borehole along coal seam,” Coal Science and Technology, Vol.46, No.4, pp. 27-32, 2018 (in Chinese). 10.13199/j.cnki.cst.2018.04.005

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