Thermal recovery of offshore coalbed methane reservoirs: Flow characteristics of superheated steam in wellbores

Nie, Bai; Sun, Sijia

doi:10.1016/j.energy.2022.126245

Cited by 5 publications

(2 citation statements)

References 53 publications

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“…Coalbed methane (CBM) is a high-heat, clean energy source, with a heat generation of about (3.35–3.77) × 10 5 J/m 3 of CBM, − equivalent to the heat of 1 kg of standard coal, and the pollution it produces is only 1/40 of that of oil and 1/800 of that of coal. − It can be seen that methane has a very large potential as a common fuel and chemical raw material. − For the mine types of CBM outburst mines and high CBM mines, the simultaneous extraction of coal and CBM is the best measure for the utilization of coal mine CBM resources and the control of CBM disasters. − The seepage law of CBM in coalbeds is one of the basic problems in the research field of coal mine CBM disaster prevention and control, which has important guiding significance for the basic theoretical research on CBM outburst, CBM extraction, and coal and CBM outburst prevention and control. − …”

Section: Introductionmentioning

confidence: 99%

“…Coalbed methane (CBM) is a high-heat, clean energy source, with a heat generation of about (3.35–3.77) × 10 5 J/m 3 of CBM, 1 − 3 equivalent to the heat of 1 kg of standard coal, and the pollution it produces is only 1/40 of that of oil and 1/800 of that of coal. 4 − 6 It can be seen that methane has a very large potential as a common fuel and chemical raw material.…”

Section: Introductionmentioning

confidence: 99%

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Fluid–Solid Coupling Characteristics of Methane-Containing Coal during Borehole Extraction of Coalbed: Numerical Modeling and Experimental Research

Yan,

Wen,

Jin

et al. 2023

ACS Omega

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The control and utilization of coalbed methane (CBM) are crucial for ensuring the safety of coal mining operations and mitigating greenhouse gas emissions. Predrainage of CBM from boreholes plays a pivotal role in preventing CBM accidents, harnessing CBM energy resources, and reducing greenhouse gas emissions. To better understand the evolution of key parameters during the predrainage process of CBM boreholes, this study, based on fundamental assumptions of coupling models, integrates the theories of elasticity, seepage mechanics, and fluid mechanics. It establishes a comprehensive mathematical model that reveals the interrelationships among the stress field, deformation field, and seepage field within methane-containing coal systems. By comparing numerical solutions with analytical solutions and conducting physical similarity simulation experiments, the study demonstrates the correctness of the methane-containing coal fluid–solid coupling model. The model developed in this study represents an improvement over traditional methane-containing coal seepage theories and fluid–solid coupling model theories and can be widely applied in the prevention of coal and CBM outbursts as well as CBM extraction.

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