A modified semi-empirical correlation for designing two-phase separators

Fadaei, M.; Ameri, Mohammad; Rafiei, Yousef; Ghorbanpour, Kayvan

doi:10.1016/j.petrol.2021.108782

Cited by 8 publications

(4 citation statements)

References 9 publications

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“…The coordinates of all fractures are determined along the x and y axes, as shown in Figure 1. The permeability and transmissibility of the blocks affected by the fracture can be determined using equation (1), while the porosity of these blocks can be calculated using equation (2). Table 1 presents the properties of oil and water of the reservoir.…”

Section: Fractured Oil Reservoir Modellingmentioning

confidence: 99%

“…During the process of oil production, the pressure within the reservoir decreases, resulting in alterations to the composition of hydrocarbons. Ensuring optimal phase separation necessitates the adjustment of the dimensions of the horizontal separator [1]. The enhancement of efficiency requires the regular modification of liquid levels and pressure, which serves to mitigate safety risks and minimize production interruptions.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Method for Constraint Optimization to Enhance Oil Production in a Production System with a Real Fractured Oil Reservoir

Fadaei,

Ameri,

Rafiei

2024

Preprint

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In the oil industry, multiphase separators are of paramount importance in oil production, as they have a significant impact on overall oil production capacity. However, the occurrence of slug flow, which is characterized by undesirable behavior, can cause extensive damage to the surface separator and pipelines. Consequently, the development of intelligent separators and the implementation of effective flow regime control mechanisms are crucial. To address this issue, our research aimed to investigate the behavior of different flow regimes entering the separator and evaluate the intelligence system of the separator. Initially, we constructed a laboratory-scale multiphase flow loop as a platform to examine various flow regimes entering the separator. Through laboratory tests employing a PID controller, we collected data concerning the liquid level, gas pressure, input flow rate, and control signals of the separator. Subsequently, we accurately modeled the laboratory system and conducted simulations in a multiple-input-multiple-output mode with model predictive control. After ensuring the effective operation of the laboratory smart control system, we integrated its control model with a production system containing a real fractured reservoir. The results demonstrated that the implementation of the smart integrated production system could enhance oil production by approximately 53% over a 20-year simulation period.

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Section: Fractured Oil Reservoir Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Method for Constraint Optimization to Enhance Oil Production in a Production System with a Real Fractured Oil Reservoir

Fadaei,

Ameri,

Rafiei

2024

Preprint

View full text Add to dashboard Cite

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“…Acharya et al [30] published another academic study in which CFD simulations were used to examine the effectiveness of a horizontal divider. Krzemianowski et al [31] provided intriguing numerical research on gas-oil-water combination separation.Overall, CFD analysis is a great tool for understanding complicated fluid dynamics and optimizing two-phase separation designs [32]. It helps researchers make more informed judgments, increase separation performance, and cut expenses associated with physical prototyping using trial and error [33].…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of the Numerical Model for Oil–Gas Separation

Tomescu,

Mălăel,

Conțiu

et al. 2023

Inventions

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The oil and gas sector is important to the global economy because it covers the exploration, production, processing, transportation, and distribution of oil and natural gas resources. Despite constant innovation and development of technologies to improve efficiency, reduce environmental impact, and optimize operations in the gas and oil industry over the last few decades, there is still room to increase the efficiency of the industry’s equipment in order to reduce its carbon footprint. The separation of gas from oil is a critical stage in the technological production chain, and it is carried out using high-performance multi-phase separators to limit greenhouse gas emissions and have a low impact on the environment. In this study, an improved gas–oil separator configuration was established utilizing CFD techniques. Two separator geometry characteristics were studied. Both cases have the same number of subdomains, two porous media, and four fluid zones, but with a difference in the pitch of the cyclone from the inlet subdomain. The streamlines in a cross-plan of the separator and the distribution of the oil volume fraction from the intake to the outlet were two of the numerical results that were shown as numeric outcomes. The validation of these results was performed using an experimental testing campaign that had the purpose of determining the amount of lubricating oil that is discharged together with the compressed gas at the separator outlet.

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“…Computational Fluid Dynamics (CFD), as an effective numerical method for calculating complex flow, has been widely used in the study of cyclone separators [11]. In recent years, scholars have conducted a large number of studies on various cyclonic separators using CFD [12][13][14][15][16][17][18]. In CFD, the selection of the turbulence model is very important.…”

Section: Introductionmentioning

confidence: 99%

Structural Optimization of High-Pressure Polyethylene Cyclone Separator Based on Energy Efficiency Parameters

Liu

Wang³

et al. 2023

Processes

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The high-pressure polyethylene process uses cyclone separators to separate ethylene gas, polyethylene, and its oligomers. The oligomers larger than 10 microns that cannot be separated must be filtered through a filter to prevent them from entering the compressor and affecting its normal operation. When the separation efficiency of the cyclone separator is low, the filter must be cleaned more frequently, which will reduce production efficiency. Research shows that improving the separation efficiency of the separator is beneficial for the separation of small-particle oligomers and reduces the frequency of filter cleaning. For this reason, Computational Fluid Dynamics simulations were performed for 27 sets of cyclone separators to determine the effects of eight structural factors (cylinder diameter, cylinder height, cone diameter, cone height, guide vane height, guide vane angle, exhaust pipe extension length, and umbrella structure height) on separation efficiency and pressure drop. The equations for separation efficiency and pressure drop using these eight factors and the equations based on energy-efficiency parameters were determined. The optimization analysis showed that separation efficiency can be improved by 98.7% under the premise that the pressure drop is only increased by 8.2%. By applying the improved structure to the high-pressure polyethylene process, separation efficiency is increased by 17.7%, which could effectively reduce the frequency of filter cleaning for this process, and thereby greatly improve production efficiency.

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A modified semi-empirical correlation for designing two-phase separators

Cited by 8 publications

References 9 publications

A Novel Method for Constraint Optimization to Enhance Oil Production in a Production System with a Real Fractured Oil Reservoir

A Novel Method for Constraint Optimization to Enhance Oil Production in a Production System with a Real Fractured Oil Reservoir

Experimental Validation of the Numerical Model for Oil–Gas Separation

Structural Optimization of High-Pressure Polyethylene Cyclone Separator Based on Energy Efficiency Parameters

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