Numerical Investigation on Flow-Field Characteristics towards Removal of Free-Water by A Separator with Coalescing Plates
Abstract - 197
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Keywords

Oil-water separation
Free-water knockout
Flow-field characteristics
Separation performance
Mathematical simulation

How to Cite

Qi, X., Zhang, H., Sun, X., & Wang, Z. (2023). Numerical Investigation on Flow-Field Characteristics towards Removal of Free-Water by A Separator with Coalescing Plates. Journal of Advances in Applied & Computational Mathematics, 10, 1–17. https://doi.org/10.15377/2409-5761.2023.10.1

Funding data

Abstract

The produced water-containing polymer brings new challenges to oil-water separation in oilfield production, yet separators with coalescing plates to remove free water have been playing an active role. In this paper, the flow-field characteristics of polymer-laden produced water in a separator with coalescing plates are analyzed using computerized mathematical methods to investigate the effects with a water content of 55%, 70%, and 85%, flow rate of 3500 m3/d, 4800 m3/d, and 6000 m3/d, and duration time of 20 min, 40 min, and 60 min on flow-field properties and separating efficiency are studied. The results show that the separating efficiency is positively correlated with water content and duration time, and duration time has the greatest improvement to the separating efficiency, but the enhancement of flow rate may reduce the separating efficiency. It is also observed that the separation efficiency of free-water reached 70.9% and the water content at the oil outlet of the separator reached 20.4% at a duration time of 60 min, when the contained polymer concentration and water content in the oil-water mixture are 500 mg/L and 70%, respectively.

https://doi.org/10.15377/2409-5761.2023.10.1
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References

Yuan S, Wang Q. New progress and prospect of oilfields development technologies in China. Pet Explor Dev. 2018; 45: 698-711. https://doi.org/10.1016/S1876-3804(18)30073-9

Chaturvedi KR, Sharma T. Modified smart water flooding for promoting carbon dioxide utilization in shale enriched heterogeneous sandstone under surface conditions for oil recovery and storage prospects. Environ Sci Pollut R. 2022; 29: 41788-803. https://doi.org/10.1007/s11356-022-18851-6

Gbadamosi A, Patil S, Kamal MS, Adewunmi AA, Yusuff AS, Agi A, et al. Application of polymers for chemical enhanced oil recovery: a review. Polymers. 2022; 14(7): 1433. https://doi.org/10.3390/polym14071433

Tang N, Luo R, Xiao Y, Wanyan Q, Li K XJ, Zhang L, et al. Settlement experiment on insoluble particles in rock salt. Oil Gas Stor Trans. 2020; 39: 1136-41. https://doi.org/10.6047/j.issn.1000-8241.2020.10.008

Zhang D, Chen Z, Ren L, Meng X, Gu W. Study on stability of produced water in ASP flooding based on critical micellar theory. Polym Bull. 2022; 79: 179-92. https://doi.org/10.1007/s00289-020-03497-6

Xu Y, Wang H, Wang Z, Xu Z, Hong J, Sun W. Microscopic mechanism of asphaltene and resin behavior to the stability of oil-water interface. J North Petrol Univ. 2021; 45: 90-101. https://doi.org/10.3969/j.issn.2095-4107.2021.06.008

Wang Z, Xu Y, Gan Y, Han X, Liu W, Xin H. Micromechanism of partially hydrolyzed polyacrylamide molecule agglomeration morphology and its impact on the stability of crude oil−water interfacial film. J Petrol Sci Eng. 2022; 214: 110492. https://doi.org/10.1016/j.petrol.2022.110492

Pramadika H, Wastu ARR, Satiyawira B, Rosyidan C, Maulani M, Prima A, et al. Demulsification optimization process on separation of water with heavy oil. AIP Conference Proceedings 23 November 2021; 2363(1): 020029. https://doi.org/10.1063/5.0061527

Zhu C, Liu X, Xu Y, Liu W, Wang Z. Determination of boundary temperature and intelligent control scheme for heavy oil field gathering and transportation system. J Pipeline Sci Eng. 2021; 1: 407-18. https://doi.org/10.1016/j.jpse.2021.09.007

Xing L, Jiang M, Zhao L, Gao J, Liu L. Design and analysis of de-oiling coalescence hydrocyclone. Sep Sci Technol. 2022; 57: 749-67. https://doi.org/10.1080/01496395.2021.1945102

Luo H, Wen J, Lv C, Wang Z. Modeling of viscosity of unstable crude oil–water mixture by characterization of energy consumption and crude oil physical properties. J Petrol Sci Eng. 2022; 212: 110222. https://doi.org/10.1016/j.petrol.2022.110222

Mohayeji M, Farsi M, Rahimpour MR, Shariati A. Modeling and operability analysis of water separation from crude oil in an industrial gravitational coalescer. J Taiwan Inst Chem E. 2016; 60: 76-82. https://doi.org/10.1016/j.jtice.2015.10.025

Amakiri KT, Canon AR, Molinari M, Angelis-Dimakis A. Review of oilfield produced water treatment technologies. Chemosphere. 2022; 298: 134064. https://doi.org/10.1016/j.chemosphere.2022.134064

Han Y, He L, Luo X, Lü Y, Shi K, Chen J, et al. A review of the recent advances in design of corrugated plate packs applied for oil–water separation. J Ind Eng Chem. 2017; 53: 37-50. https://doi.org/10.1016/j.jiec.2017.04.029

Wang X, Yan Y, Xu Z. Application experiment and numerical simulation analysis of oil–water separator with two-oriented corrugated coalescence plate. J Disp Sci Technol. 2017; 38: 1509-15. https://doi.org/10.1080/01932691.2016.1259072

Almarouf HS, Nasser MS, Al-Marri MJ, Khraisheh M, Onaizi SA. Demulsification of stable emulsions from produced water using a phase separator with inclined parallel arc coalescing plates. J Petrol Sci Eng. 2015; 135: 16-21. https://doi.org/10.1016/j.petrol.2015.08.005

Kim DK, Choi G, Ko T-J, Shin S, Kim SJ. Numerical investigation of oil–water separation on a mesh-type filter. Acta Mech. 2022; 233: 1041-59. https://doi.org/10.1007/s00707-022-03155-0

Yuan S, Fan Y, Li J, Zhou S, Cao Y. Influence of droplet coalescence and breakup on the separation process in wave-plate separators. Can J Chem Eng. 2018; 96: 1627-36. https://doi.org/10.1002/cjce.23089

Oruç M, Yayla S. Experimental investigation of oil-in water separation using corrugated plates and optimization of separation system. Sep Sci Technol. 2022; 57: 788-800. https://doi.org/10.1080/01496395.2021.1939377

Yayla S, Ibrahim SS, Olcay AB. Numerical investigation of coalescing plate system to understand the separation of water and oil in water treatment plant of petroleum industry. Eng Appl Comp Fluid. 2017; 11: 184-92. https://doi.org/10.1080/19942060.2016.1273137

Yayla S, Sabah S, Olcay AB. CFD simulation of designed coalescing plates for separating water and oil in water treatment plants used in petroleum projects. Pamukkale U J Eng Sci. 2017; 23: 358-63. https://doi.org/10.5505/pajes.2016.67944

Liu Y, Lu H, Li Y, Xu H, Pan Z, Dai P, et al. A review of treatment technologies for produced water in offshore oil and gas fields. Sci Total Environ. 2021; 775: 145485. https://doi.org/10.1016/j.scitotenv.2021.145485

Wahba E. Derivation of the differential continuity equation in an introductory engineering fluid mechanics course. Int J Mech Eng Edu. 2022; 50: 538-47. https://doi.org/10.1177/03064190211014460

Wang Z-H, Liu X-Y, Zhang H-Q, Wang Y, Xu Y-F, Peng B-L, et al. Modeling of kinetic characteristics of alkaline-surfactant-polymer-strengthened foams decay under ultrasonic standing wave. Petrol Sci. 2022; 19: 1825-39. https://doi.org/10.1016/j.petsci.2022.04.012

Wang Z, Sun X, Li J, Zhou N. Influencing factors and laws of polymer-flooding produced water separation settlement with dissolved air flotation. China Petrol Mach. 2020; 48: 123-35. https://doi.org/10.16082/j.cnki.issn.1001-4578.2020.10.019

Zhuge X, Qi X, Wang S, Liu Y. Evaluation and improvement of the performance of a wellhead multistage bundle gas-liquid separator. Processes. 2022; 10(4): 632. https://doi.org/10.3390/pr10040632

Hattori H, Wada A, Yamamoto M, Yokoo H, Yasunaga K, Kanda T, et al. Experimental study of laminar-to-turbulent transition in pipe flow. Phys Fluids. 2022; 34: 1-18. https://doi.org/10.1063/5.0082624

Zhao J, Xi X, Dong H, Wang Z, Zhuo Z. Rheo-microscopy in situ synchronous measurement of shearing thinning behaviors of waxy crude oil. Fuel. 2022; 323: 124427. https://doi.org/10.1016/j.fuel.2022.124427

Pavlíček P. Local reynolds number. AIP Conference Proceedings 27 June 2019; 2118(1): 030035. https://doi.org/10.1063/1.5114763

Zhao ZG, Feng MQ, Liu JG, Tao YK, Wang JS, Wang L, et al. The research on new technology and separation performance of wastewater treatment for offshore field. Desalin Water Treat. 2018; 125: 116-23. https://doi.org/10.5004/dwt.2018.22093.

Koutsourakis N, Bartzis JG, Markatos NC. Evaluation of Reynolds stress, k-ε and RNG k-ε turbulence models in street canyon flows using various experimental datasets. Environ Fluid Mech. 2012; 12: 379-403. https://doi.org/10.1007/s10652-012-9240-9

Galbraith MC, Caplan PC, Carson HA, Park MA, Balan A, Anderson WK, et al. Verification of unstructured grid adaptation components. AIAA J. 2020; 58: 3947-62. https://doi.org/10.2514/1.J058783

Yu H, Zhang H, Guo Y, Tan H, Li Y, Xie G. Investigating neutron back scattering technique for the detection of oil water separation levels in horizontal gravity oil separators. J Radioanal Nucl Ch. 2018; 315: 323-30. https://doi.org/10.1007/s10967-017-5675-2

Feng X, Stewart S, Sartori L, Hodges K. Understanding the effect of skim oil recycle on the water/oil separation in steam assisted gravity drainage operations. J Petrol Sci Eng. 2020; 192: 107233. https://doi.org/10.1016/j.petrol.2020.107233

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Copyright (c) 2023 Xiangdong Qi, Hongqi Zhang, Xitong Sun, Zhihua Wang