Rezultaty - reservoir simulation
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Creation of high-conductive filtration channels in core samples when simulating acid exposure at a filtering unit
Wydane 2021-12-01“…To study the factors that directly affect the formation of dissolution channels in core samples when simulating hydrochloric acid treatment of the bottom-hole zone of carbonate reservoirs on a filtration unit. …”Background. Hydrochloric acid treatment is currently one of the main methods used for recovering and improving the reservoir properties of bottom-hole formation zones. In the process of acid treatment, during the reaction of the acid composition and the rock, highly conductive filtration channels ar...
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Study on the influence of CO2-water-rock reactions under reservoir conditions on geochemical properties of sandstone reservoirs
Wydane 2025-08-01“…To address limitations in existing studies—such as short reaction durations and unclear effects of environmental variables—this research used a high-temperature, high-pressure reactor to simulate reservoir conditions. Advanced equipment, including high-performance field-emission scanning electron microscope and X-ray diffraction, was utilized to study the effects and mechanisms of CO2-water-rock reactions on reservoir physical properties and mineral compositions under different environmental variables. …”Most oilfields currently using CO2 flooding in China have transitioned from water flooding to CO2 injection for development. Over prolonged periods, CO2-water-rock reactions can alter reservoir physical properties, becoming a key issue that must be addressed. To address limitations in existing studi...
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The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models
Wydane 2024-05-01“…Therefore, accurate reservoir modelling and simulation must be conducted in order to achieve ultimate recovery. …”Assessing fractures in carbonate reservoirs is crucial due to their substantial impact on reservoir permeability. Understanding the characteristics of these fractures is vital for optimizing oil production. Additionally, extremely heterogeneous and anisotropic permeability distribution within the n...
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Mechanisms and Optimization of Foam Flooding in Heterogeneous Thick Oil Reservoirs: Insights from Large-Scale 2D Sandpack Experiments
Wydane 2025-06-01Hasła przedmiotowe: “…thick oil reservoirs…”To address the challenges of low displacement efficiency and gas channeling in the Lukqin thick oil reservoir, characterized by high viscosity (286 mPa·s) and strong heterogeneity (permeability contrast 5–10), this study systematically investigated water flooding and foam flooding mechanisms using a...
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Reservoir Simulation of CO<sub>2</sub> Flooding vs. CO<sub>2</sub> Huff-and-Puff in Shale Formations: Comparative Analysis of Storage and Recovery Mechanisms
Wydane 2025-06-01Hasła przedmiotowe: Dokumenty pełnotekstoweAnthropogenic CO<sub>2</sub> emissions are a major driver of climate change, highlighting the urgent need for effective mitigation strategies. Carbon Capture, Utilization, and Storage (CCUS) offers a promising approach, particularly through CO<sub>2</sub>-enhanced gas recover...
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A Fully Coupled Numerical Simulation Model for Bottom-Water Gas Reservoirs Integrating Horizontal Wellbore, ICD Screens, and Zonal Water Control: Development, Validation, and Optimization Strategies
Wydane 2025-07-01Hasła przedmiotowe: “…bottom-water gas reservoir…”To address the challenges of water coning and early water breakthrough commonly encountered during the development of bottom-water gas reservoirs, this study establishes a fully coupled numerical simulation model integrating a horizontal wellbore, inflow control device (ICD) screens, and a zonal wat...
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Distribution of fractured reservoirs in the Chayanda field (Eastern Siberia)
Wydane 2024-04-01“…The values of the fracture and intergranular component of porosity were determined by the author’s method using data on open porosity and the rate of elastic wave propagation in rock samples and the mineral skeleton of these samples during the simulation of reservoir conditions. A mosaic area distribution of fractured porosity values, caused by a long geological and tectonic history of the area development, was revealed. …”The results of laboratory studies of nearly 1,300 samples from 50 wells of reservoirs of three productive terrigenous horizons represented by sandstones and siltstones are considered. Intergranular and fractured components mainly make up the porosity structure of reservoirs and their values influenc...
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Preliminary Study of Ecological Dredging Technology for the Three Gorges Reservoir
Wydane 2025-07-01“…[Objective] Traditional dredging methods for reservoir sedimentation can cause resuspension of sediments, leading to the release of nutrients, and then affect the water environment. …”[Objective] Traditional dredging methods for reservoir sedimentation can cause resuspension of sediments, leading to the release of nutrients, and then affect the water environment. Proposing a reasonable and feasible ecological dredging scheme is important to prevent water environmental pollution c...
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Modelling inflows in Ilarion reservoir, Greece, using HEC-HMS
Wydane 2025-01-01“…This study investigates the application of the Hydrologic Modeling System (HEC-HMS) for simulating inflows to the Ilarion Reservoir, the first reservoir in the cascade of five along the Aliakmon River in northern Greece. …”This study investigates the application of the Hydrologic Modeling System (HEC-HMS) for simulating inflows to the Ilarion Reservoir, the first reservoir in the cascade of five along the Aliakmon River in northern Greece. The model is calibrated using observed meteorological and hydrological data to...
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Optimizing Geothermal Energy Extraction in CO<sub>2</sub> Plume Geothermal Systems
Wydane 2023-11-01Hasła przedmiotowe: Dokumenty pełnotekstoweCPG (CO<sub>2</sub> Plume Geothermal) has recently emerged as a promising technology to combine the extraction of geothermal energy with underground CO<sub>2</sub> storage, thus achieving double positive results. The idea is to inject CO<sub>2</sub> in its supercr...
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AUTOMATIC CONTROL SYSTEM OF TEMPERATURE IN THE RESERVOIR FOR SANITARY TREATMENT OF HYDRO MATERIAL
Wydane 2022-10-01“…The authors offer automated control of mineral water temperature for reservoir sanitization hydro material. The authors choose the control parameters for the control system, they make a mathematical model with the regulator control system and they carry out a simulation of the closed control system on a computer. …”The authors offer automated control of mineral water temperature for reservoir sanitization hydro material. The authors choose the control parameters for the control system, they make a mathematical model with the regulator control system and they carry out a simulation of the closed control system...
Dokumenty pełnotekstowe
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Clogging of induced fracture to increase waterflood sweep efficiency
Wydane 2024-04-01Hasła przedmiotowe: Dokumenty pełnotekstoweWaterflooding of low-permeable reservoirs with high pressure is often accompanied by formation of induced fracture. The positive side of this process is an injectivity increase and oil production rise. However, when these fractures approach producing wells, an early water breakthrough occurs, and hi...
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OIL WELL INFLOW WITH A COMPLEX WELLBORE TRAJECTORY AT THE DEVELOPMENT RESERVOIR
Wydane 2022-07-01Dokumenty pełnotekstoweIntroduction. This paper discusses approaches to calculating the productivity of oil wells. Existing solutions do not allow taking into account many important factors, such as, for example, hydraulic resistance in the wellbore, wellbore trajectory, etc. Materials and methods of research. The article...
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Liquid and Gas Corrected Permeability Correlation for Heterogeneous Carbonate Reservoir Rocks
Wydane 2020-10-01“…Permeability is considered as an efficient parameter for reservoir modelling and simulation in different types of rocks. …”Permeability is considered as an efficient parameter for reservoir modelling and simulation in different types of rocks. The performance of a dynamic model for estimation of reservoir properties based on liquid permeability has been widely established for reservoir rocks. Consequently, the validated...
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Performance Evaluation of Static and Dynamic Compressed Air Reservoirs for Energy Storage
Wydane 2025-07-01“…The study comprises a model of the compression machine as well as models of the two reservoirs. The filling processes are simulated, and the different variables are represented as a function of time. …”The concept of static and dynamic reservoirs is presented, and their performances are evaluated. The static reservoir is a simple reservoir with constant volume, and the dynamic one has a volume which varies as a function of the position of an internal piston coupled to a spring. The spring is compr...
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Study on the extension law of fractures in shale reservoirs under impact loads.
Wydane 2025-01-01“…To further reveal the mechanism of reservoir fracture propagation under explosive fracturing, this paper conducted experimental research on the propagation law of complex fractures in shale reservoirs under impact load. …”Fracturing technology is an important technique in the development of shale reservoirs. Compared with conventional hydraulic fracturing, explosive fracturing technology has the advantages of low cost and environmental protection. Relevant research results have shown that this technology can effectiv...
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Theoretical Foundations for Calculating the Erosion of Soil Dams during Overflow of Water over the Ridge
Wydane 2022-06-01Hasła przedmiotowe: Dokumenty pełnotekstoweLarge-scale hydraulic engineering construction associated with the erection and operation of large dams and reservoirs has an impact on the ecosystem and physical and geographical characteristics of the construction area. In addition, during the passage of catastrophic floods and high waters, the da...
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A sustainable approach to deep geothermal energy exploitation: feasibility of clustered U-shaped multi-branch wells
Wydane 2025-06-01Hasła przedmiotowe: Dokumenty pełnotekstoweTo overcome the limitations of unstable heat extraction power and low efficiency in current deep geothermal energy exploitation technologies, we propose a novel and sustainable approach using clustered U-shaped multi-branch wells (UMW). This method enables efficient heat exchange by circulating work...
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A technical review of chemical reactions during CCUS-EOR in different reservoirs
Wydane 2025-06-01“…Fifth, advanced experimental tools, such as Computed Tomography (CT) and Nuclear Magnetic Resonance (NMR) imaging, combined with geochemical modeling and reservoir simulation, are essential to predict petrophysical changes across scales. …”Geochemical reactions play a vital role in determining the efficiency of carbon capture, utilization, and storage combined with enhanced oil recovery (CCUS-EOR), particularly through their influence on reservoir properties. To deepen the understanding of these mechanisms, this review investigates th...
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