Study on the optimization of the in-situ gas pressure calculation method for coal samples containing water
To improve the accuracy of in-situ gas pressure measurement in coal seams, the calculation method for gas pressure in water-bearing, pressure-maintained coal samples was optimized. The method?s reliability was verified by comparing calculation errors before and after optimization. Results indicate that incorporating the adsorption capacity attenuation coefficient, ?, and coal sample moisture content (?) into the calculation improved stability and reliability. The average error decreased significantly from 15.79% -1.38%. This optimized method offers a reliable and convenient approach for accurately measuring in-situ gas pressure in water-bearing coal seams while maintaining high calculation accuracy.
Authors
- Mingzhong Gao (ORCID: https://orcid.org/0000-0002-8399-421X)
- Yang Geng-xin
- Bing Ji (ORCID: https://orcid.org/0000-0003-0034-6901)
- Zhao Liu (ORCID: https://orcid.org/0000-0002-5821-0372)
- Zhipeng Wang (ORCID: https://orcid.org/0000-0003-4415-7213)
- Xu Zhang (ORCID: https://orcid.org/0009-0001-8592-6763)
- Zhongping Zhu
- Jie Song (ORCID: https://orcid.org/0009-0005-9048-708X)
Institutions
- Shenzhen University (CN)
- Yalong Hydro (China) (CN)
Publication Details
- Journal
- Thermal Science
- Published
- 2025-01-01
- DOI
- https://doi.org/10.2298/tsci2502435w
- Primary Topic
- Coal Properties and Utilization
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Key Research and Development Program of China