ESP Technology Maturation: Subsea Boosting System With High GOR and Viscous Fluids

Barrios, Lissett; Scott, Stuart L.; Rivera, Robert J.; Sheth, Ketan K.

doi:10.2118/159186-ms

Cited by 23 publications

(7 citation statements)

References 1 publication

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“…A few scholars conducted a series of theoretical and experimental studies on the submersible pump system. Barrios et al 9 found that the calculated values of the pressure increase produced by the impeller in a submersible pump are similar to the experimental data. The analysis of flow streamlines and its behavior used in CFD was also discussed.…”

Section: Introductionsupporting

confidence: 54%

Effect of blade number matching of impeller and diffuser in high-speed rescue pump

Bai

Kong

Xia

et al. 2017

Advances in Mechanical Engineering

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In order to meet the requirement of coal mine flooding emergency rescue, a high-power, high-head, and small-volume high-speed wet submersible pump has been designed. This article provides comparison and analysis for nine combination cases of different matching laws between the impeller blade number Z 1 (Z 1 = 5, 6, 7) and the diffuser vane blade number Z 2 (Z 2 = 8, 9, 10). The comparison of the pump performance and inner flow characters, such as the head, efficiency, radial force, and pressure pulsation coefficient, at different blade number matching of impeller and diffuser has been studied by the computational fluid dynamics software CFX. These are solved through the three-dimensional unsteady Reynolds-averaged Navier-Stokes equations with the shear-stress transport k-v turbulence model. Furthermore, the computational fluid dynamics method is validated by experimental data collected in the laboratory. The results show that the combination of blade number of impeller and diffuser vane has a significant effect on the behavior. The steady analysis of combinations indicates that an increased efficiency occurs along with the reduced blade number. From the unsteady perspective, the 7 + 8 (Z 1 = 7, Z 2 = 8) case has the lowest fluctuation and relatively small radial force. In conclusion, the above results can provide reference for choosing blade numbers matching law between impeller and diffuser vane of the high-speed rescue pump.

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Section: Introductionsupporting

confidence: 54%

Effect of blade number matching of impeller and diffuser in high-speed rescue pump

Bai

Kong

Xia

et al. 2017

Advances in Mechanical Engineering

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“…Second, constructing and testing physical prototypes are expensive and time-consuming endeavors, which reduce the profit margins of pump manufacturers. Consequently, several studies have been conducted on CFD to serve as guides for pump design and optimization [5][6][7][8][9][10][11][12][13][14]. In terms of pressure pulsation and radial force, Gao et al [15] studied the static performance and pressure fluctuation of a large centrifugal pump and determined the main frequency of mine monitoring points; their findings agreed well with experimental data.…”

Section: Prefacementioning

confidence: 68%

Effects of Impeller Diameter on High‐Speed Rescue Pump

Bai

Kong

Xia

et al. 2017

Mathematical Problems in Engineering

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Impeller diameter is a crucial design parameter of high-speed rescue pumps because it affects the performance and inner flow characteristics of these pumps. In this study, a pump with an impeller diameter of 248 mm was modeled and its performance was tested. Numerical simulations were conducted under steady and unsteady states, in which the sizes of the impeller diameters were designated as 248 mm (original), 235.6 mm (5% trimmed), 223.2 mm (10% trimmed), and 210.8 mm (15% trimmed). ANSYS software was used to test the shear stress transport (SST -) of the four models, and results agreed well with experimental data. Diameter size affected impeller characteristics in both steady and unsteady states. Subsequently, the differences in performance, hydraulic loss, pressure pulsation, and radial force of the impellers were evaluated. In the performance test, the head and efficiency of the pump decreased as impeller diameter was reduced. The result trends are in accordance with the trim law within the acceptable error range. In terms of hydraulic loss, the impeller and diffuser vane components presented opposite trends with flow rate increase. Finally, in terms of pressure pulsation and radial force, the amplitude diminished while periodicity improved as impeller diameter decreased. PrefaceThe number of mining flooding accidents has increased in China and in other countries, and rescue operation groups have since demanded for lower-volume, higher-powered, and higher-speed pumps compared with conventional types. The current rescue pumps used for mining flooding are the multistage types, which have sufficient power and head to alleviate flooding from the bottom to the ground, but are complex and too large to use in narrow mining wells [1][2][3][4]. Consequently, the research groups at Jiangsu University that are in charge of rescue pump development have designed a series of smallvolume, high-powered, and high-speed rescue pumps that can be easily used during mining flooding incidents.In recent years, computational fluid dynamics (CFD) analysis has been applied to the hydrodynamic design of several pump types due to the following reasons. First, the outcomes of hydraulic design and performance are difficult to predict because of complex geometric parameters. Second, constructing and testing physical prototypes are expensive and time-consuming endeavors, which reduce the profit margins of pump manufacturers. Consequently, several studies have been conducted on CFD to serve as guides for pump design and optimization [5][6][7][8][9][10][11][12][13][14]. In terms of pressure pulsation and radial force, Gao et al. [15] studied the static performance and pressure fluctuation of a large centrifugal pump and determined the main frequency of mine monitoring points; their findings agreed well with experimental data. Zhang et al.[16] investigated a conventional spiral volute pump and demonstrated how slope volute contributes to the significant decline of pressure pulsation. Pei et al. [17][18][19] investigated the flow unsteadiness ...

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“…The gaseous phase can also cause severe problems. These include corrosion, gas lock, and a surface kick (Barrios et al 2012;Dwitiya et al 2015;Mali et al 2020).…”

Section: Multiphasementioning

confidence: 99%

Rigorous review of electrical submersible pump failure mechanisms and their mitigation measures

Fakher

Khlaifat

Hossain

et al. 2021

J Petrol Explor Prod Technol

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Artificial lift is a vital part of the life of many oil wells worldwide. Using several artificial lift methods can prolong the life of the wells and increase oil recovery significantly. One of the most applied artificial lift methods nowadays is the electrical submersible pump (ESP). This artificial lift method has the ability to handle large volumes of hydrocarbons and is applicable under many conditions in both offshore and onshore reservoirs. Even though ESP has been applied extensively for many years, it still suffers from many failures due to electrical, mechanical, and operational problems associated with the ESP downhole assembly. Understanding the main reasons behind ESP failures and how to rapidly and effectively avoid and mitigate these failures is imperative to reduce cost and damage and improve operational and rig-personal safety. This research performs a comprehensive review on ESP failure mechanisms and analyzes these failures in order to determine the optimum conditions to operate the ESP. This can help minimize and avoid these failures. Also, should these failures occur, the research proposes several mitigation methods for each failure based on analysis of different field cases worldwide.

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ESP Technology Maturation: Subsea Boosting System With High GOR and Viscous Fluids

Cited by 23 publications

References 1 publication

Effect of blade number matching of impeller and diffuser in high-speed rescue pump

Effect of blade number matching of impeller and diffuser in high-speed rescue pump

Effects of Impeller Diameter on High‐Speed Rescue Pump

Rigorous review of electrical submersible pump failure mechanisms and their mitigation measures

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