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Updated: Jul 3, 2026

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
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Study on methane migration flow-solid coupling model under hydraulic borehole conditions and optimization of borehole

Yaowei Zhai1, Yuzhong Yang2, Qingbo Hao1

  • 1School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China.

Scientific Reports
|July 1, 2026
PubMed
Summary

Hydraulic slotting enhances coal seam permeability and methane drainage efficiency in low-permeability mines. Optimized slotting and borehole layouts improve gas extraction, ensuring safer mining operations.

Keywords:
Borehole layout optimizationEffective gas drainage radiusField validationFluid–solid couplingHydraulic slottingNumerical simulation

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