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Updated: Jul 26, 2025

Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures
Published on: September 2, 2019
Performance and application of new inorganic retarding sealing material suitable for multi-scale fractures
Jianwei Cheng1, Zhiyuan Ma1, Yu Wang1
1School of Safety Engineering, China University of Mining &Technology, Xuzhou 221116, China.
Abstract:
Gas extraction is an important way to solve coal mine gas in China. At present, the development of new and more efficient gas sealing materials is an urgent problem in China's coal mining industry. In order to improve the gas extraction efficiency and promote the development and utilization of coalbed methane, we developed a new inorganic slow setting material which used bentonite as main material. We added two kinds of organic modified materials and two kinds of inorganic modified materials to optimize the sealing performance, and analyzed the viscosity, sealing and particle size changes after modification. The rheological properties and diffusion properties of sealing materials was studied. Meanwhile, field experiments were carried out to verify that it has more efficient sealing performance than traditional cement materials and could improves the efficiency of gas drainage and reduces mine gas disaster accidents.
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