Natural Gas Hydrate Production Methods: A Review

Shahab Ud Din, Guo Dongdong, Ning Fulong, Xue Liang


Due to industrialization and urbanization, the world energy need is increased enormously. A significant portion of which comes from fossil fuels (coal, oil, and gas). These resources are exhausting at an alarming rate and growing environmental concerns. There are stupendous deposits of natural gas hydrate (NGH) worldwide. Due to its vast occurrence (around 3000 TCM) and high-volume capacity (1 m3 of hydrate store 170-180 m3 of methane gas), NGH is considered as a possible alternative and a clean energy source. NGH has attracted the attention of both academia and industry. Unlike other conventional and unconventional energy sources, NGH production requires some distinct techniques due to its nature. There are four production methods (depressurization, thermal stimulation, chemical injection, and CO2-CH4 exchange) to produce NGH, but all these methods lack gas production at a commercial scale. Academia and industry are in the quest to find new methods to produce it safely and commercially. This review paper briefly introduces NGH and its conventional production techniques. Furthermore, the paper will also review novel production techniques and enhance NGH production techniques. 


Gas Hydrate; Gas Production; Enhance NGH Recovery; Recent Advances

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