Study of the effect of water and gas injection on the ...Study of the effect of water and gas...
Transcript of Study of the effect of water and gas injection on the ...Study of the effect of water and gas...
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Study of the effect of water and gas injection on the total pressure gradient in upward-vertical viscous oil flow
Douglas Martins Rocha
Advisor: Prof. Dr. Oscar M. H. Rodriguez
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Context
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$ Oil
$ Production
$ Transportation
Others
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Context
3Multiphasic
Flow
Lifting methods and
transportation
Research
Efficiency
Feasibility
$Production $TransportationFlow
Technology
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Goal
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Multiphase flow study for improve the efficiency of oil lifting and transportation
methods.
Artificial Lifting D
ou
glas
Mar
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Mas
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Atificial Lifiting Methods
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Gas-Lift
Core-Annular-Flow
Art
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Atificial Lifiting Methods
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Core-Annular-Flow Gas-Lift
Decrease the frictional component of the total
pressure gradient
Decrease the gravitational component of the total
pressure gradient
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Gas-lift
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Source: (Guet e Ooms, 2006)
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Gas-lift
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Applicable for low to medium flow rates(Re+/- 10000)
Poor efficiency for heavy oil (high viscosity)Gas
-Lif
t
Source: (Guet e Ooms, 2006)
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Core-Flow
9Water Water
OilSource: (Parda e Bannwart, 2001)
Applicable for reducing the frictional component of the pressure gradient
Co
re-f
low
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Core-Flow
10Source: (Joseph et al, 1997)
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Water-Gas-Lift
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Core Flow
GasLift
Water-Gas-Lift
Frictional Component
Gravitational Component
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Water-Gas-Lift
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𝜕𝑃
𝜕𝑧=
𝜕𝑃
𝜕𝑧𝑔
+𝜕𝑃
𝜕𝑧𝑓
+𝜕𝑃
𝜕𝑧𝑎
Source: (Guet e Ooms, 2006)
Core-FlowGas-Lift
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Work strategy
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Investigate (lab tests) the behavior of each technique in vertical upward flow of oil from moderate to high viscosity
Development of a phenomenological model to predict the pattern and behavior of each flow
Validation
MODEL vs EXPERIMENTAL RESULTS
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Work strategy
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Modeling
Experimental tests
Flow pattern: use of high-definition and high speed camera
Volume fraction: quick-closing valves
Pressure drop: differential pressure transducer Valadyne ®
Calibration of flowmeters and Validyne ®
Signal Analysis in LabView ®
Models homogeneously mixing and / or separate phases (Wallis, 1969), (oil / water / gas)
Models liquid/liquid (Bannwart and Rodriguez, 2009) and gas/liquid for comparison
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Infrastructure
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Expected results
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Effective viscosity limit of the mixture (gas lift), above which the gas injection shows less advantageous to reduce the pressure gradient for a given production rate of oil;
Determining the impact of the pattern three-phase flow in reducing the pressure gradient
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References
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GUET, S.; OOMS, G. Fluid mechanical aspects of the gas-lift technique. In: (Ed.). Annual Review of Fluid Mechanics. Palo Alto: Annual Reviews, v.38, 2006. p.225-249. (Annual Review of Fluid Mechanics).
RODRIGUEZ, O. M. H. Forma da Interface e Gradiente de Pressão no Padrão Líquido-Líquido Anular Vertical Ascendente. Tese de Doutorado. Universidade Estadual de Campinas, 2002.
PARDA, V. J. W.; BANNWART A. C. Modeling of vertical core-annular flows and application to heavy oil production. J Energy Resour Technol. ASME. v.123, 2001. p.194-199.
JOSEPH, D. D.; BAI, R.; CHEN, K. R.; RENARDY, Y. Y.; Core-annular flows. Annual reviews. J Fluid Mech, 1997. v.29, p.1-30.
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OBRIGADO!
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