World Water Policy, Volume 9, Issue 3, Page 456-480, August 2023., 2023 Abstract Groundwater is a vital resource under threat in island communities. Karainagar, a 22 km2 island, is one of seven islands off the coast of Jaffna in Northern Sri Lanka, with its population of just about 11,000 persons, experiences seasonal water shortage, and salinity in groundwater as twin threats impacting on their lives.
Inthirakumaran Karthiga +3 more
wiley +1 more source
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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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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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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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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Exploration characteristics of coal and rock boundary in horizontal well with Azimuth electromagnetic wave instrument PeriScope [PDF]
, 2023 In coal mine production, advance and precise identification of coal-rock interface can improve recovery and reduce mining risk, which is one of the bottleneck technologies to realize intelligent coal mining.
Fei LI +5 more
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Research progress,key scientific issues,and prospects of segmented fracturing and pressure relief gas drainage technology for coal seam roof horizontal wells [PDF]
The segmented fracturing and pressure relief gas drainage technology in the horizontal well of the coal seam roof is a key means to guide the efficient gas extraction in deep, high gas, soft and low permeability coal seams.Based on this, a full lifecycle
Caiqing LI +7 more
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Seepage model and productivity prediction of fractured wells in shale gas reservoirs with discontinuous micro-fractures [PDF]
, 2016 A dual-porosity medium with micro-fractured spherical matrix blocks was achieved on the basis of the structure characteristics of nano-micro pores and micro-fractures in shale gas reservoirs.
DENG Jia, MA Qian, QI Qian, ZHU Wei-yao
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Research on adaptability of fracturing technologies for CBM horizontal wells based on the viewpoint of “unblocking and channeling” [PDF]
Horizontal well fracturing stimulation is currently the most core technical means to achieve efficient development of unconventional coalbed methane resources.
Jigang GUO +11 more
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