Research progress on methane production from natural gas hydrates

Due to the consumption of fossil fuels, an alternative energy source is necessary for the world's continuous development. Methane hydrates, a vast energy resource that exists in deep-ocean or permafrost sediments containing approximately 10 000 Gt of carbon, are a potential energy source for th...

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Bibliographic Details
Published in:RSC Advances
Main Authors: Xu, Chun-Gang, Li, Xiao-Sen
Format: Report
Language:English
Published: 2015
Subjects:
Science & Technology
Physical Sciences
Chemistry
MOLECULAR-DYNAMICS SIMULATION
PARTICLE-SIZE ANALYSIS
SOUTH CHINA SEA
CARBON DIOXIDE REPLACEMENT
QILIAN MOUNTAIN PERMAFROST
ETHYLENE-GLYCOL INJECTION
INTRINSIC RATE-CONSTANT
CO2-CH4 MIXED HYDRATE
SALT AQUEOUS-SOLUTION
IN-SITU OBSERVATION
Multidisciplinary
permafrost
Online Access:http://ir.giec.ac.cn/handle/344007/10517
https://doi.org/10.1039/c4ra10248g
Description
Summary:Due to the consumption of fossil fuels, an alternative energy source is necessary for the world's continuous development. Methane hydrates, a vast energy resource that exists in deep-ocean or permafrost sediments containing approximately 10 000 Gt of carbon, are a potential energy source for the future. However, economically and safely producing methane from gas hydrate deposits is still not on the drawing board. The main reasons include (1) low methane production efficiency, (2) low methane production, (3) poor production sustainability. Thus, it is pressing to develop methane production technology and/or approaches to improve methane production efficiency. In this paper, we comprehensively review the research on methane production from gas hydrates, including the research on the characteristics of gas hydrate reservoirs, production methods, numerical simulations and field production tests. The different investigations are analyzed and relevant comments and suggestions are proposed accordingly.

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