Modeling a Production Well Flow Control System Using the Example of the Verkhneberezovskaya Area

Makarova, Anastasiya A.; Kaliberda, Igor V.; Kovalev, D. A.; Pershin, I. M.

doi:10.1109/elconrus54750.2022.9755852

Cited by 12 publications

(5 citation statements)

References 7 publications

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“…A practical example shows a reduction in the overshoot time. Compared to previously proposed methods [10,23,29,[73][74][75][76][77][78][120][121][122][123][124][125][126][127][128][129][130][131][132][133][134][135][136][137][138][139], the time spent on equalizing the reservoir pressure is reduced by 15%. It is important to note not only the great theoretical significance of the research conducted, but also its real practical application.…”

Section: Discussionmentioning

confidence: 99%

“…The Kislovodskoye field is located on the Bermamyt plateau, the central part of which is located in a valley that arose due to the confluence of the Berezovaya and Olkhovka rivers, with a maximum height of 800-860 m. In the north, at the confluence of the Belaya and Berezovaya rivers, the maximum altitude of the area is about 800 m (see Figure 2). The Berezovsky site is located at a higher absolute altitude (900-1200 m) on plateaus within the Berezovaya gorge, dug by the bed of the Berezovaya River [76]. In the area of the Podkumok River, there is the Podkumsky district, whose maximum altitude is in the range of 750 to 800 m. The Olkhovsky section of the Kislovodsk concession is located in the valley of the Olkhovka River, where the maximum altitude is 970-1050 m [77][78][79][80].…”

Section: Characteristics Of the Research Objectmentioning

confidence: 99%

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Methodology to Increase the Efficiency of the Mineral Water Extraction Process

Ilyushin,

Nosova

2024

Water

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The most important source of human life support is water. During the development of mineral water fields, unsustainable patterns of production and consumption have been observed, which could lead to environmental damage and the deterioration of mineral water quality and sources. In this work, a procedure for determining the modified link’s parameters, replacing the static and dynamic indicators of the hydrodynamic process, is proposed. Recording the parameters at the different filtration coefficients along the spatial coordinates allows the environmental safety of aquifers to be increased and the pressure of the reservoir to be stabilized. The presented approach allows the accuracy of the process used to control the reservoir’s pressure to be increased.

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Section: Discussionmentioning

confidence: 99%

Section: Characteristics Of the Research Objectmentioning

confidence: 99%

Methodology to Increase the Efficiency of the Mineral Water Extraction Process

Ilyushin,

Nosova

2024

Water

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“…The unique research results are invaluable for modeling various aspects of the UCG process and designing the process in real conditions. A number of examples of the application of the results of experimental research for the implementation of model works, including designing automated control systems, are described in the literature [44][45][46].…”

Section: Process Balance Datamentioning

confidence: 99%

Large-Scale Experimental Simulations of In Situ Coal Gasification in Terms of Process Efficiency and Physicochemical Properties of Process By-Products

et al. 2023

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This paper presents a series of surface experiments simulating underground coal gasification (UCG). The main goal of the experiments was to investigate the influence of the gasification medium and the coal rank on the gasification process. Four multi-day trials were carried out using a laboratory gasification facility designed for the large-scale experimental simulations of UCG and located in the Experimental Mine “Barbara”, located at Mikołów, Poland. Two Polish bituminous coals were investigated: coal sourced from “Piast-Ziemowit” mine and coal sourced from “Wesoła” mine. Each of the two coals was gasified in two separate experiments using oxygen-enriched air (OEA) and pure oxygen as the respective gasifying agents. Gasification with oxygen resulted in significantly higher gas quality and higher process efficiency than gasification with OEA. Higher concentrations of hydrogen (23.2% and 25.5%) and carbon monoxide (31.8% and 33.4%) were obtained when oxygen was used as a gasifying reagent, while lower concentrations were obtained in the case of gasification with OEA (7.1% and 9.5% of hydrogen; 6.4% and 19.7% of carbon monoxide). Average gas calorific values were 7.96 MJ/Nm3 and 9.14 MJ/Nm3 for the oxygen experiments, compared to 2.25 MJ/Nm3 and 3.44 MJ/Nm3 for the OEA experiments (“Piast-Ziemowit” coal and “Wesoła” coal, respectively). The higher coalification degree of “Wesoła” coal (82.01% of carbon) compared to the “Piast-Ziemowit” coal (68.62% of carbon) definitely improves the gas quality and energy efficiency of the process. The rate of water condensate production was higher for the oxygen gasification process (5.01 kg/h and 3.63 kg/h) compared to the OEA gasification process (4.18 kg/h and 2.63 kg/h, respectively), regardless of the type of gasified coal. Additionally, the textural characteristics (porosity development) of the chars remaining after coal gasification experiments were analyzed. A noticeable development of pores larger than 0.7 nm was only observed for the less coalified “Piast-Ziemowit” coal when analyzed under the more reactive atmosphere of oxygen.

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“…The deflagration fracture is initiated from the natural fracture near two ends of the radial well, and the fracture width and the reservoir stimulation volume increase. Reservoir fractures, stratigraphy, or reservoir fluids can all have an impact on the form of rock mechanics and how it ruptures [32,33]. Considering the micro-fractures in the rock around the radial well, the effects of micro-fracture distribution on the deflagration fracture are analyzed.…”

Section: Effect Of Natural Fracture Density On Fracture Propagationmentioning

confidence: 99%

Numerical Simulation on Radial Well Deflagration Fracturing Based on Phase Field Method

et al. 2023

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A radial well has a unique wellbore configuration. Fracture propagation in radial well deflagration fracturing is studied rarely. The mechanism of interaction between deflagration fractures, natural fractures, and micro-fractures is still unknown. Based on continuum mechanics, damage mechanics, and variational principles, a numerical model of fracture propagation in deflagration fracturing is established with the Hamilton principle and phase-field fracture theory. The effects of horizontal principal stress difference, natural fracture distribution, and micro-fractures around the wellbore on fracture propagation in deflagration fracturing are studied. First, when no natural fractures are developed around the radial well, fractures are initiated at both ends of the radial well. Second, when there are three natural fractures around the radial well, the created fractures have the morphology of shorter fractures in the middle and longer fractures on both sides under stress interference mechanisms. Third, a larger density of natural fractures causes obvious stress superposition, changes the initiation points of radial wells and fracture morphology, and increases fracture width and reservoir stimulation volume. Fourth, as the micro-fractures increase, their interference and induction effects on deflagration fractures are enhanced gradually, and the deflection angle of fractures increases by 38.7%. The study provides a reference for optimizing deflagration fracturing in a radial well.

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Modeling a Production Well Flow Control System Using the Example of the Verkhneberezovskaya Area

Cited by 12 publications

References 7 publications

Methodology to Increase the Efficiency of the Mineral Water Extraction Process

Methodology to Increase the Efficiency of the Mineral Water Extraction Process

Large-Scale Experimental Simulations of In Situ Coal Gasification in Terms of Process Efficiency and Physicochemical Properties of Process By-Products

Numerical Simulation on Radial Well Deflagration Fracturing Based on Phase Field Method

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