Simulation investigation on spatial deflection of multiples fractures of multistage perforation clusters in hydraulic fracturing [PDF]
, 2023 The morphology of complex fracture network in hydraulic fracturing engineering in deep tight oil and gas reservoir is a crucial factor affecting oil and gas recovery, and it is necessary to accurately evaluate and optimize the fracture propagation ...
Hao WANG, Nana LIU, Yongliang WANG
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Thingking and utilization technology of coalbed methane in soft and low permeability coal seams in Huainan Mining Area [PDF]
, 2022 In order to solve the problems that restrict the efficient development of coalbed methane resources under the conditions of soft and low permeability outburst coal seams in Huainan Mining Area, such as complex coal seam structure, multi-source gas ...
Benliang CHEN +8 more
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Mechanism and technical system of ground and underground combined drainage of CBM in “four region linkage” in coal mining area [PDF]
, 2022 In order to better realize the safe and efficient coordinated development of coal and CBM resources in high gassy mining areas, the four regions (planning region, preparation region, production region and coal mined-out region) linkage ground-underground
Changjiang JI +4 more
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Study on horizontal completion with composite tubular string in coal reservoir with complex coal structure [PDF]
, 2023 Aiming at the problems such as large deformation difference of coal structure, strong heterogeneity of physical properties, complex coal structure during horizontal drilling, single completion & stimulation technology and so on, a completion technology ...
Baoan XIAN +3 more
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Review and prospect of coal rock hydraulic fracturing physical experimental research [PDF]
, 2022 Physical simulation of hydraulic fracturing is an approximate representation of fracture evolution and its dynamic process, which represents an important direction of fracture evolution research.
Le LIU +8 more
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Progress and trend of key technologies of CBM development and utilization in China coal mine areas [PDF]
, 2022 The key to coordinated development of coal mine methane and coal is to coordinate the spatio-temporal relationship between coal mining and coal mine methane development.
Haitao SUN +3 more
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Disaster mechanism during passing of working face under overlying remnant coal pillar and advanced regional prevention technology [PDF]
, 2023 When the mining of the underlying working face of shallow and close seam passes under the overlying remnant coal pillar, it is easy to have an intensive mine pressure-induced dynamic disaster, resulting in personnel and equipment damage, which seriously ...
Bingang LI +7 more
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Key technology progress of surface extraction project deployment based on coordinated development of CBM and coal [PDF]
, 2022 The surface extraction of CBM in coal mine area has the multiple effects of improving the efficiency of safe coal mining, using CBM resource cleanly and reducing gas emission.
Jianlu CHAI +4 more
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Characteristics of apparent resistivity of coals with different particle sizes [PDF]
, 2022 The theory and technology of stress released CBM development is a new theory and technology for CBM development of tectonically deformed coals. The research on the apparent resistivity of tectonically deformed coal can provide technical support for the ...
Deyi GAO +3 more
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Experimental investigation on fracture behavior of lignite and its fracturing significance:taking Shengli Coalfield as an example [PDF]
, 2023 The anisotropy of fracture properties at different bedding orientations of lignite plays an important role in controlling the formation of fracture network of reservoir racturing.
Diankun ZHANG +2 more
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