Study on the optimization of the in-situ gas pressure calculation method for coal samples containing water
Year: 2025
Type: article
Abstract: 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.
Source: Thermal Science
DOI: 10.2298/tsci2502435w
Authors: Zhi-Peng Wang, Jie Song, Geng-Xin Yang, Zhong-Ping Zhu, Zhang Xu, Zhao Liu, Bing Ji, Ming-Zhong Gao
Institution: Shenzhen University
Language: English
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $161
Award: G4603362135
OpenAlex ID: W4410823288