A study on collision warning of gas wells in coal-gas cross mining area

Wang Wen; Yang Kun; He Yun; Wang Bin; Gao Fei; Pan Yexin

doi:10.19606/j.cnki.jmst.2022.04.011

Volume 7 Issue 4

Aug. 2022

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Article Navigation > Journal of Mining Science and Technology > 2022 > 7(4): 490-497

Wang Wen, Yang Kun, He Yun, Wang Bin, Gao Fei, Pan Yexin. A study on collision warning of gas wells in coal-gas cross mining area[J]. Journal of Mining Science and Technology, 2022, 7(4): 490-497. doi: 10.19606/j.cnki.jmst.2022.04.011

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A study on collision warning of gas wells in coal-gas cross mining area

doi: 10.19606/j.cnki.jmst.2022.04.011

Wang Wen^{1, 2
,},
Yang Kun^{1, 2},
He Yun³,
Wang Bin³,
Gao Fei⁴,
Pan Yexin⁵

1.
School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454003, China
2.
Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo Henan 454000, China
3.
Sinopec North China Petroleum Bureau, Zhengzhou Henan 450006, China
4.
School of Petroleum Engineering, Yangtze University, Wuhan Hubei 430100, China
5.
Weiqixin Petroleum Machinery (Tianjin) Co.Ltd., Tianjin 300308, China

Received Date: 2021-11-09
Rev Recd Date: 2021-11-26
Publish Date: 2022-08-30

Abstract

Abstract

Along with the gradual normalization of coordinated cross-mining of multiple mineral resources, the safety situation of natural gas wells has become increasingly serious. Taking coal-gas cross-mining in the Ordos Basin as the research object, this paper proposed an anti-collision early warning method based on vibration wave monitoring prevent the occurrence of collision accidents between roadheader and gas well. Through the steel pipe percussion vibration test and coal mine excavation vibration test, the attenuation law of vibration waves in the steel pipe and coal rock is studied, and the formula for calculating the distance from the roadheader to the natural gas well is deduced according to the vibration attenuation law. The results show that the attenuation coefficients of vibration waves in steel pipes and coal rocks are different, but the attenuation laws are basically the same, both conforming to the exponential attenuation law, with the vibration waves first decaying rapidly and then slowly. It provides a reference for the realization of surface monitoring of the distance from the roadheader to the natural gas well, preventing collision and predicting early warning.
- cross-mining,
- natural gas well,
- vibration wave,
- attenuation law,
- collision monitoring

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References(17)

References

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A study on collision warning of gas wells in coal-gas cross mining area

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