Rezultaty - reservoir simulation
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161
Comparative Study of Water Flow in Nanopores with Different Quartz <inline-formula><math display="inline"><semantics><mrow><mrow><mo stretchy="false">(</mo><mn>10</mn><mover><mn>1<...
Wydane 2025-06-01Dokumenty pełnotekstoweDewatering and gas production are applied on a large scale in shale gas development. The fundamental mechanisms of water flow in shale nanoporous media are essential for the development of shale oil and gas resources. In this work, we use molecular dynamic simulations to investigate water flow in tw...
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162
Asphaltene transformation and agglomeration in compressed light oil systems under carbon dioxide injection in a porous structure: A molecular dynamics study
Wydane 2025-10-01“…Asphaltene deposition poses a significant challenge in the application of improved oil recovery by CO2 injection, adversely affecting reservoir permeability and extraction efficiency. Despite previous research highlighting the importance of this problem, there was a critical deficiency of knowledge on the impacts of pressure changes on asphaltene agglomeration and structural transformation at the atomic level in compressed light oil reservoirs. …”The rising depletion of light fossil fuels is leading to an increasing global dependence on heavy oil production. Asphaltene deposition poses a significant challenge in the application of improved oil recovery by CO2 injection, adversely affecting reservoir permeability and extraction efficiency. De...
Dokumenty pełnotekstowe
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163
The expediency of remote location from an injection well of water shut-off material in a high-permeability sublayer
Wydane 2025-04-01“…This scenario of location the blocking agent with complex rheological properties in a reservoir requires reliable design and accurate control of execution, which significantly complicates the reservoir treatment process and, therefore, demands well-founded justification. …”The paper investigates the expediency of placement a water shut-off material in a high-permeability watered sublayer away from the injection well. This scenario of location the blocking agent with complex rheological properties in a reservoir requires reliable design and accurate control of executio...
Dokumenty pełnotekstowe
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164
Mechanism of heavy alkane influence on CO2 and CH4 competitive adsorption in shale
Wydane 2025-08-01“…In shale gas reservoirs, CH4 often coexists with heavy alkanes such as C2H6 and C3H8. …”In shale gas reservoirs, CH4 often coexists with heavy alkanes such as C2H6 and C3H8. To investigate the mechanism by which heavy alkanes affect the competitive adsorption of CH4 and CO2 in organic nanopores of shale, this study combines density functional theory and Grand Canonical Monte Carlo simu...
Dokumenty pełnotekstowe
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165
The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). VI. Comparison of Dust Evolution Models to AGE-PRO Observations
Wydane 2025-01-01“…The potential for planet formation of a circumstellar disk depends on the dust and gas reservoirs, which evolve as a function of the disk age. …”The potential for planet formation of a circumstellar disk depends on the dust and gas reservoirs, which evolve as a function of the disk age. The Atacama Large Millimeter/submillimeter Array AGE-PRO Large Program has measured several disk properties across three star-forming regions of different ag...
Dokumenty pełnotekstowe
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166
Simulation of the Liquid–Solid Coupling in the Distribution Law of Water-Conducted Fractures in Weakly Cemented Overburden Strata as Exemplified by Daliuta Coal Mine in Western Chi...
Wydane 2025-01-01“…Based on the engineering background of the Daliuta mining area, the distribution of fractures and movement of water within weakly cemented overlying strata were studied with a physical simulation of liquid–solid coupling and a COMSOL numerical simulation test. …”Based on the engineering background of the Daliuta mining area, the distribution of fractures and movement of water within weakly cemented overlying strata were studied with a physical simulation of liquid–solid coupling and a COMSOL numerical simulation test. The results showed that after the initi...
Dokumenty pełnotekstowe
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167
Triaxial Experimental Study of Natural Gas Hydrate Sediment Fracturing and Its Initiation Mechanisms: A Simulation Using Large-Scale Ice-Saturated Synthetic Cubic Models
Wydane 2025-05-01Dokumenty pełnotekstoweThe efficient extraction of natural gas from marine natural gas hydrate (NGH) reservoirs is challenging, due to their low permeability, high hydrate saturation, and fine-grained sediments. Hydraulic fracturing has been proven to be a promising technique for improving the permeability of these unconv...
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168
Calculation method for CO2 geological storage capacity of fault-block traps in Subei Basin based on safety considerations
Wydane 2025-08-01Dokumenty pełnotekstoweTo address the safety concerns associated with the CO2 geological storage process in fault-block traps of the Subei Basin, safety thresholds were systematically determined by integrating fault sealing capacity, caprock integrity, and wellbore stability through theoretical calculations and laboratory...
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169
Stability Assessment of Hazardous Rock Masses and Rockfall Trajectory Prediction Using LiDAR Point Clouds
Wydane 2025-06-01“…Subsequently, six-degree-of-freedom Monte Carlo simulations incorporating realistic three-dimensional terrain and block geometry are performed in RAMMS::ROCKFALL (Rapid Mass Movements Simulation—Rockfall). …”This study aims to mitigate slope-collapse hazards that threaten life and property at the Lujiawan resettlement site in Wanbi Town, Dayao County, Yunnan Province, within the Guanyinyan hydropower reservoir. It integrates centimeter-level point-cloud data collected by a DJI Matrice 350 RTK equipped w...
Dokumenty pełnotekstowe
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170
MODERN ALGORITHMS AND SOFTWARE FOR INTERPRETATION OF RESISTIVITY LOGGING DATA
Wydane 2021-10-01Dokumenty pełnotekstoweThe electrodynamics of geological media investigates the interrelations of resistivity logging signals and properties of fluid-containing rocks and creates innovative well logging technologies. Its development is inextricably linked with modern techniques for mathematical modeling and quantitative i...
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171
Chemically enhanced water-alternating-gas injection for improved CO2 sweep efficiency and geological sequestration in CO2-EOR: Insights from physical experiments and molecular simu...
Wydane 2025-09-01“…Addressing gas channeling, limited sweep efficiency, and restricted CO2-oil miscibility in heterogeneous reservoirs during CO2-enhanced oil recovery (CO2-EOR) remains a critical challenge. …”Addressing gas channeling, limited sweep efficiency, and restricted CO2-oil miscibility in heterogeneous reservoirs during CO2-enhanced oil recovery (CO2-EOR) remains a critical challenge. Herein, a novel pressure-regulated, hydrophilic CO₂-responsive hydrogel-to-foam transition system is used to en...
Dokumenty pełnotekstowe
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172
Design and Flow Field Analysis of Extendable Leaching-optimized Cavern Construction Device for Salt Cavern Gas Storage
Wydane 2025-07-01“…Salt cavern gas storage is one of the most important types of underground gas storage reservoirs. To address the inefficient initial cavern formation rates in solution mining-based gas storage facilities located within salt formations, an extendable leaching-optimized device for cavern construction has been designed. …”Salt cavern gas storage is one of the most important types of underground gas storage reservoirs. To address the inefficient initial cavern formation rates in solution mining-based gas storage facilities located within salt formations, an extendable leaching-optimized device for cavern construction...
Dokumenty pełnotekstowe
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173
Evaluation of Proppant Placement Efficiency in Linearly Tapering Fractures
Wydane 2025-07-01Dokumenty pełnotekstoweWith growing reliance on hydraulic fracturing to develop tight oil and gas reservoirs characterized by low porosity and permeability, optimizing proppant transport and placement has become critical to sustaining fracture conductivity and production. However, how fracture geometry influences proppant...
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174
Dynamical Analysis of Mpox Disease with Environmental Effects
Wydane 2025-05-01“…In this study, we develop a fractional-order mathematical model for investigating the transmission dynamics of monkeypox (Mpox), accounting for interactions between humans, rodents, and environmental reservoirs. The model uniquely integrates two key control strategies—public health awareness and environmental sanitation—often overlooked in previous models. …”In this study, we develop a fractional-order mathematical model for investigating the transmission dynamics of monkeypox (Mpox), accounting for interactions between humans, rodents, and environmental reservoirs. The model uniquely integrates two key control strategies—public health awareness and env...
Dokumenty pełnotekstowe
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175
Dynamic Wetland Evolution in the Upper Yellow River Basin: A 30-Year Spatiotemporal Analysis and Future Projections Under Multiple Protection Scenarios
Wydane 2025-06-01“…The changes in various types of wetlands are different: the areas of river and canals increased by 26.39% and 57.97%, respectively, paddy fields increased by 7.95%, lakes remained basically stable, and tidal flats decreased by 5.67%. The simulation results of the future spatial pattern of wetlands show that: under the FPS scenario, farmland and related land use will expand significantly, mainly through the development of beaches, dry land and unused land, while under the WPS scenario, wetlands will be strictly protected, the area of water resource features such as rivers, lakes and reservoirs will increase significantly, and land use changes will be more ecologically oriented. …”Wetland monitoring is a key means of protecting wetland ecosystems. In order to achieve continuous monitoring of wetlands and predict future patterns, this paper analyzes the spatiotemporal evolution characteristics of wetlands in the upper reaches of the Yellow River from 1990 to 2020, and uses the...
Dokumenty pełnotekstowe
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176
Analysis of wells cement sheath stability during shaped charge perforating based on geomechanical modeling
Wydane 2024-04-01“…During modeling, it was taken into account that the geological and physical parameters of the simulated reservoirs differed in depth and reservoir pressure value were different. …”Well cement sheath stability analysis for two oil-producing wells in the completion of productive formations by shaped charge perforating was performed. The data of direct measurements of pressures in the borehole at different distances from the cable head of the perforating tool at the moment of de...
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177
Thermo-hydro-mechanical coupling mechanisms and sensitivity analysis of abandoned mine thermal energy storage systems
Wydane 2025-07-01“…Mine water thermal resources are attracting strong academic interest due to their abundant natural reservoirs and favorable geothermal environments. Globally, the geothermal potential of mine water has gained widespread recognition. …”Given the extensive abandonment of mines in China, the abundant non-mineral resources exposed in derelict mine workings pose challenges in addressing idle mine risks while also presenting opportunities for improving energy infrastructure. By fully utilizing the underground spaces and geothermal reso...
Dokumenty pełnotekstowe
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178
Super-resolution reconstruction technology for full-diameter core nuclear magnetic resonance scanning data: a global non-negative least squares-based approach
Wydane 2025-07-01“…The feasibility of this method was validated through numerical simulations, physical experiments, and actual data analysis. …”Full-diameter core nuclear magnetic resonance (NMR) analysis is one of the key exploration and analysis techniques in unconventional oil and gas exploration. It provides continuous high-resolution information on rock core porosity, permeability, and fluid saturation. However, due to its large measur...
Dokumenty pełnotekstowe
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179
Unlocking antiviral potentials of traditional plants: A multi-method computational study against human metapneumovirus (HMPV)
Wydane 2025-10-01“…Traditional medicinal plants offer a reservoir of bioactive compounds with potential antiviral properties. …”Background: Human metapneumovirus (HMPV) is a major cause of respiratory infections, especially in vulnerable populations. The absence of targeted antiviral therapies necessitates the exploration of novel drug candidates. Traditional medicinal plants offer a reservoir of bioactive compounds with pot...
Dokumenty pełnotekstowe
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180
Applicability of LARSEN & SKAUGE relative permeability hysteresis model in high-temperature and high-pressure CO2-water alternating injection experiments
Wydane 2025-08-01Dokumenty pełnotekstoweThe relative permeability hysteresis effect in porous media has been studied extensively over many years, leading to relatively consistent conclusions. Due to the influence of this hysteresis effect, parameters such as the shapes of relative permeability curves across different cycles and the satura...
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