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Numerical simulation study of influencing factors for 3D coal seam gas drainage efficiency
Gas drainage from the coal seam can not only decrease gas pressure, content, and gas emission but also prevent gas outburst and explosion; however,...
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Characteristics of Seepage and Diffusion in Gas Drainage and Its Application for Enhancing the gas utilization rate
Although gas drainage technology has greatly developed, gas concentration and utilization rates are still very low, resulting in substantial...
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Geological and microstructural characterisation of coal seams for methane drainage from underground coal mines
Methane drainage from coal seams is a complex process. Quantification of the geological and microstructural characteristics of the coal matrix is of...
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Reservoir Damage in Coalbed Methane Commingled Drainage Wells and Its Fatal Impact on Well Recovery
Fluid backflow behavior and reservoir damage during methane commingled drainage from multiple coal seams were investigated via physical experiments...
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Study on Gas-Liquid Two-Phase Flow Law in Shale Gas Horizontal Wellbore
The gas-liquid two-phase flow is a production feature throughout the entire lifecycle of shale gas horizontal wells. Deepening the understanding of...
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Stability evaluation of spoil dump slopes reinforced by air-injection drainage from the perspective of reliability analysis
A spoil dump slope is a kind of artificial slope formed by the accumulation of engineering waste residue from multiple sources, which results in high...
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Permeability of Coal Cores with a Drainage Fracture with a Monolayer of Proppant
AbstractThe article describes the studies on permeability of coal cores with a through drainage fracture with and without a monolayer of a proppant....
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Simulation and performance prediction of partially naturally fractured reservoirs under solution gas drive primary recovery and gas injection processes
The study presented in this paper has multiple objectives. First, a simulation model for partially naturally fractured reservoirs under solution gas...
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Characteristics and Genesis of Acid Drainage Contamination from a Rock Tunneling Project Site
While acid mine drainage (AMD) issues have become a topic of global concern, few studies have focused on acid drainage problems of non-mining...
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Exploration of Dynamic Analysis Technology to Oil-Type Underground Gas Storage - A Case Study of NanPu No.1 Gas Storage
At present, Most in-service underground gas storage are gas reservoir. Nanpu No.1 is the first gas storage reservoir in Jidong Oilfield, which...
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Experimental Study on Gas–Water Seepage in High-Rank Coal and Its Research Significance
The gas–water seepage parameters of coal reservoir have to do with the development effect of coalbed methane (CBM) wells, and determine the output...
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Permeability Damage Mechanism and Evolution of Gas-Bearing Coal Seams Induced by Drilling Fluid
Gas drainage is critical for underground coal mining in coal seams that contain high coalbed methane. We propose an underground pressurized drilling...
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Application of the Coupling Model of Gas Reservior, Wellbore and Restrictor in Sulige Gas Field
In sulige gas field, throttles are generally installed downhole, which can reduce wellhead pressure on the one hand and prevent hydrate formation on...
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Gas Wells
We analyze gas well test data to seek answers to several questions such as the present deliverability, the future deliverability at various reservoir...
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The Study and Application on a New Evaluation Index of Gas Well Productivity in Tight Gas Reservoir
The Shenmu gas field is a typical tight gas reservoir, developed with “downhole throttling” technology to cut costs. There is no natural stable...
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Characteristics and Controlling Factors of Fluid Interlayer Crossflow through Fractures in Coal Measure Gas Reservoirs: Implication for Enhancing Production
Against the backdrop of implementing integrated hydraulic fracturing on coal measure gas (CMG) reservoirs, fluids can flow through interlayer...
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Development Geological Characteristics and Technical Countermeasures for Enhancing Recovery of Keshen 8 Gas Reservoir in Kuqa Depression
In recent years, ultra deep fractured gas reservoir is a hot spot of natural gas exploration and development in Tarim Basin. This type of gas...
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Controls on organic and inorganic soil carbon in poorly drained agricultural soils with subsurface drainage
Many productive agricultural soils have naturally poor drainage characteristics and may intermittently pond water even where artificial drainage...
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Gas production prediction using AM-BiLSTM model optimized by Whale Optimization Algorithm
Gas production is an essential metric to assess the gas production capacity and engineering development performance. Accurate gas production...
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Study on Elastoplastic Damage Constitutive Model and Permeability Evolution Law of Gas-Bearing Coal
Original coal reservoir contains massive free and adsorbed methane, that directly affects the mechanical properties and permeability of coal with its...
