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Computational and experimental study of sand entrapment in a hydrocyclone during desanding operations in oil fields: Consequences for leakage and separation efficiency
Published in Society of Petroleum Engineers
2019
Volume: 34
   
Issue: 3
Pages: 520 - 535
Abstract
In the oil and gas industry, upstream and downstream hydrocyclones are used extensively to separate heavy or dense particles from the formation water/reservoir fluids. These hydrocyclones, after a long period of operation, can fail as a result of wear-initiated leakage, thereby needing maintenance or replacement. A detailed investigation of this failure was carried out using computational fluid dynamics (CFD). One-way and two-way coupling of a discrete phase model was used along with the Reynolds stress turbulence model (RSM). Experimental studies were conducted to understand the flow dynamics within the hydrocyclone and to validate the computational model. Key findings, such as bifurcation of the inlet flow, local acceleration of fluid within the hydrocyclone, the impact of the sand drain pipe on fractional efficiency, and the impact of multiple particle sizes and density interactions on the degree of particle entrapment, are discussed in detail. The approach and results presented in this work provide useful insights and a systematic basis for improving the service life and separation efficiency of the hydrocyclone. © 2019 Society of Petroleum Engineers.
About the journal
JournalSPE Production and Operations
PublisherSociety of Petroleum Engineers
Open AccessNo
Concepts (24)
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    CYCLONE SEPARATORS
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    Efficiency
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    Gas industry
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    OIL FIELDS
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    Reynolds number
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    Rivers
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    Soil mechanics
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    Turbulence models
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    Computational model
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    Discrete phase model
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    FRACTIONAL EFFICIENCIES
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    MULTIPLE PARTICLES
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    Oil and gas industry
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    PARTICLE ENTRAPMENT
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    Reynolds stress turbulence model
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    Separation efficiency
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    Computational fluid dynamics
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    Efficiency measurement
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    Experimental study
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    HYDROCARBON ENTRAPMENT
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    Leakage
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    Model
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    OIL FIELD
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    Separation