By analyzing the desorption mechanism of coalbed methane,the paper clarifies that the stimu-lation of gas wells requires the construction of a three-dimensional artificial fracture network to increase the participation of more fractures in the flow.Firstly,the fracturing fluid system required to achieve arti-ficial fracture networks is analyzed,and it is considered that low-viscosity fracturing fluid is the primary factor in forming large-area fracture networks.Secondly,taking into account various factors such as con-struction displacement,cost control,and safety risks,the main fracturing process of bridge plug perfora-tion combined operation is selected.Thirdly,the selected fracturing process is continuously optimized,and the construction parameters used in fracturing in the southern part of the Qinshui Basin are designed based on the actual situation on site.The on-site test application results show that this process can meet the needs of building a volume fracture network and achieve the goal of increasing production.It provides a new idea for fracturing and increasing production of high-rank coalbed methane wells in the southern Qinshui Basin,and offers a new method for efficient development of coalbed methane.
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