In-situ pressure-preserved coring for deep oil and gas exploration: Design scheme for a coring tool and research on the in-situ pressure-preserving mechanism

Guo, Da; Xie, Heping; Gao, Mingzhong; Li, Jianan; He, Zhiqiang; Chen, Ling; Li, Cong; Zhao, Le; Wang, Dingming; Zhang, Yiwei; Fang, Xin; Liu, Guikang; Zhou, Zhongya; Dai, Lin

doi:10.1016/j.energy.2023.129519

Energy

2024

DOI: 10.1016/j.energy.2023.129519

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In-situ pressure-preserved coring for deep oil and gas exploration: Design scheme for a coring tool and research on the in-situ pressure-preserving mechanism

Da Guo,

Heping Xie,

Mingzhong Gao

et al.

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Cited by 6 publications

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Gas desorption law of coal particles and calculation method of gas loss during fixed‐point closed sampling

Wen,

Wu,

Wei

et al. 2024

Energy Science & Engineering

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With the application of new technologies for coal mine gas control, it has been increasingly urgent to apply the fixed‐point closed sampling (FPCS) technology for accurate measurement of coal seam gas content. In this study, gas desorption during FPCS was analyzed. In addition, gas desorption experiments and COMSOL simulations were conducted on coal particles. Furthermore, the gas desorption law during FPCS was compared with that under atmospheric pressure. The results show that Sun's formula can effectively characterize the gas desorption law during FPCS, and the i value remains unchanged when the gas desorption curve is fitted with Sun's formula. On this basis, a specific method for calculating gas loss during FPCS by using Sun's formula was proposed. The research findings are expected to provide a theoretical basis for accurate measurement of coal seam gas content by means of FPCS.

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Gas desorption law of coal particles and calculation method of gas loss during fixed‐point closed sampling

Wen,

Wu,

Wei

et al. 2024

Energy Science & Engineering

View full text Add to dashboard Cite

show abstract

Controllable preparation of YSZ-STHS in arc plasma spheroidization: Exploring the plasma flow characteristics' impact on powder quality

Qiu,

Yu,

Chen

et al. 2024

Ceramics International

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Experimental and simulation study on deep reservoir fracturing technology: A review and future perspectives

Qin,

Zhou,

Wei

et al. 2024

Geoenergy Science and Engineering

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In-situ pressure-preserved coring for deep oil and gas exploration: Design scheme for a coring tool and research on the in-situ pressure-preserving mechanism

Cited by 6 publications

References 20 publications

Gas desorption law of coal particles and calculation method of gas loss during fixed‐point closed sampling

Gas desorption law of coal particles and calculation method of gas loss during fixed‐point closed sampling

Controllable preparation of YSZ-STHS in arc plasma spheroidization: Exploring the plasma flow characteristics' impact on powder quality

Experimental and simulation study on deep reservoir fracturing technology: A review and future perspectives

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