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With the era of high oil prices and prominent contradict between domestic oil and gas supply and demand, a boom of unconventional natural gas development has set off.While a major success of shale gas development has been made in the United States, it has also brought a successful experience and advanced technology to China.China also have carried out deep research and have achieved certain results in coal bed methane and tight sandstone gas, etc.However, difficulties and problems faced in the development process need to be carefully dealt with.