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Technologies extraction of coalbed methane in the Qinshui basin of China
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Coalbed methane (CBM) is a new clean and unconventional energy that has broad space for development. In Qinshui basin, CBM reserves reach 3,97·1012m3, which is 10,8% of the total resource in China. Compared to the main coal basins of USA, Australia, Canada and Russia, coal seams in Qinshui basin have the characteristics of high metamorphism, high gas content, low porosity, low permeability and low reservoir pressure. Therefore, effective stimulation treatments must be used in Qinshui basin to realize industrial exploitation of CBM. At present, vertical wells with hydraulic fracturing are dominated in Qinshui basin. In addition, injection CO2, electric pulse, multi-stage fracturing and other technologies are also applied to the CBM exploitation.
Moscow University Press
Title: Technologies extraction of coalbed methane in the Qinshui basin of China
Description:
Coalbed methane (CBM) is a new clean and unconventional energy that has broad space for development.
In Qinshui basin, CBM reserves reach 3,97·1012m3, which is 10,8% of the total resource in China.
Compared to the main coal basins of USA, Australia, Canada and Russia, coal seams in Qinshui basin have the characteristics of high metamorphism, high gas content, low porosity, low permeability and low reservoir pressure.
Therefore, effective stimulation treatments must be used in Qinshui basin to realize industrial exploitation of CBM.
At present, vertical wells with hydraulic fracturing are dominated in Qinshui basin.
In addition, injection CO2, electric pulse, multi-stage fracturing and other technologies are also applied to the CBM exploitation.
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