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Empirical and Numerical Modelling of Gas–Gas Diffusion for Binary Hydrogen–Methane Systems at Underground Gas Storage Conditions
The physical process in which a substance moves from a location with a higher concentration to a location with a lower concentration is known as...
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Quantification of Gas Transport Behavior During Coalbed Methane Extraction in A Coal Seam Considering a Dual-Porosity/Single-Permeability Model
Due to the inherent deposition environment and extraction challenges in a coal seam, quantification of its gas transport behavior serves as the...
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Coalbed Methane System, Exploitable Control Factors, Coalbed Methane Fields Characteristics, and Reserves in Bowen Basin
Coalbed Methane system is a natural system that encompasses coal seams and Coalbed Methane in them including all the geologic elements and processes....
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Features of Methane Gas-Geochemical Fields in the Area of Peter the Great Gulf (Japan Sea)
AbstractThe paper is devoted to comparative analysis of detailed gas-geochemical studies carried out in the Alekseev Bay (Peter the Great Gulf, Japan...
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Evolution of Pore Structure and Methane Adsorption in Lower Silurian Longmaxi Shale: Implications for Uplifted Shale Gas Reservoirs
Pore volume, pore size and adsorption capacity are fundamental factors that control gas storage and production in shale reservoirs. We investigated...
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A Simple Calculation Method for Original Gas-in-Place and Water Influx of Coalbed Methane Reservoirs
For water-driven gas reservoirs, material balance equations need the water influx known before calculating the original gas-in-place. However, the...
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Machine learning prediction of methane, ethane, and propane solubility in pure water and electrolyte solutions: Implications for stray gas migration modeling
Hydraulic fracturing is an effective technology for hydrocarbon extraction from unconventional shale and tight gas reservoirs. A potential risk of...
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Modified Method for Calculating Saturation Gas Content in Deep Coal and the Pore Size Effect of Methane Adsorption on Guizhou Middle- and High-Rank Coals
Comprehensive development of deep coalbed methane is the basis of sustainable coalbed methane development in China. An accurate assessment of deep...
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Modeling Effects of Gravity on Gas Drainage in Methane-Containing Coal Seams
AbstractThe apparatus of nonstationary thermoelasticity is used to estimate the joint and separate effects of gas pressure sorption and gravity on...
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Practical Analysis of Deep Coalbed Methane Stimulation
The research on the effective utilization of deep coalbed methane (with a burial depth of over 2500 m) within the Sinopec system is still blank,...
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Multi-stage gas diffusion and its implications for the productivity of coalbed methane in the southern Qinshui Basin, north China
The behavior of coalbed methane (CBM) diffusion considerably influences gas productivity. Based on the multi-porous diffusion model and on-site CBM...
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A Comprehensive Study on Methane Adsorption Capacities and Pore Characteristics of Coal Seams: Implications for Efficient Coalbed Methane Development in the Soma Basin, Türkiye
AbstractThis study represents a comprehensive assessment of methane adsorption capacity and pore characteristics for the coal seams of the Soma Basin...
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Mechanisms of Methane Displacement by CO2/N2 Injection in Tectonic Coal under Different Gas-Driving Modes
During underground gas injection in coal seams to displace coalbed methane, the injected gas spread toward coal fractures and macropores under...
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Methane Adsorption Characteristics Under In Situ Reservoir Conditions of the Wufeng–Longmaxi Shale in Southern Sichuan Basin, China: Implications for Gas Content Evaluation
The accuracy of adsorbed gas content under actual in situ reservoir conditions is crucial for the evaluation of shale gas reserves. In this study,...
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Shallow Gas Disasters
Shallow gas is generally referred to in the seabed below 1000 m of gas accumulation in the sediments. The components of shallow gas have simple...
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Contribution of Mineral Impurities to Coalbed Methane Accumulation and Retention
AbstractThe implemented research shows that coalbed gas content in face area is proportional to pyrite content of coal, calculated with respect to...
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Multiscale Transport Characteristics of Coalbed Methane in Abandoned Mines and Its Applications in Gas Recovery
A considerable amount of coalbed methane (CBM) that can be extracted by surface vertical wells exists in gobs of abandoned mines. A model of CBM...
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Chemical Species Prediction for Development of Phase Behaviors of Natural Gas in Dry Gas Reservoir
Natural gas in a Natural Gas Field, a dry gas reservoir, northeast region of Thailand was investigated to determine the relationship of chemical...
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Characteristics and Governing Factors of Pore Structure and Methane Sorption in Deep-Marine Shales: A Case Study of the Wufeng–Longmaxi Formations, Weirong Shale Gas Field, Sichuan Basin
Despite being closely relevant to resource assessment and exploitation, pore structures and methane storage behaviors of deep-marine shales remain...
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Research on Water Invasion Intensity of Coalbed Methane Wells Based on Material Balance Method
At present, many coalbed methane wells expose the problem of large water production and low depressurization efficiency which seriously affects gas...