The use of drift-flux techniques for the analysis of horizontal two-phase flows

França, Fernando A.; Lahey, R.T.

doi:10.1016/0301-9322(92)90059-p

Cited by 100 publications

(32 citation statements)

References 14 publications

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“…16 we see that the absolute difference in temperature at the junction for different total flow rates can be seen to be smaller for all cases, because the effect of having a higher flow rate is larger than having depth differences between the laterals. Also, in this case lateral 1 will always have a higher temperature than lateral 2, because of its higher flow rate.…”

mentioning

confidence: 77%

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A Comprehensive Statistically-Based Method to Interpret Real-Time Flowing Measurements

Yoshioka¹,

Dawkrajai²,

Romero³

et al. 2007

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With the recent development of temperature measurement systems, continuous temperature profiles can be obtained with high precision. Small temperature changes can be detected by modern temperature measuring instruments such as fiber optic distributed temperature sensor (DTS) in intelligent completions and will potentially aid the diagnosis of downhole flow conditions. In vertical wells, since elevational geothermal changes make the wellbore temperature sensitive to the amount and the type of fluids produced, temperature logs can be used successfully to diagnose the downhole flow conditions. However, geothermal temperature changes along the wellbore being small for horizontal wells, interpretations of a temperature log become difficult. The primary temperature differences for each phase (oil, water, and gas) are caused by frictional effects. Therefore, in developing a thermal model for horizontal wellbore, subtle temperature changes must be accounted for.In this project, we have rigorously derived governing equations for a producing horizontal wellbore and developed a prediction model of the temperature and pressure by coupling the wellbore and reservoir equations. Also, we applied Ramey's model (1962) to the build section and used an energy balance to infer the temperature profile at the junction. The multilateral wellbore temperature model was applied to a wide range of cases at varying fluid thermal properties, absolute values of temperature and pressure, geothermal gradients, flow rates from each lateral, and the trajectories of each build section.With the prediction models developed, we present inversion studies of synthetic and field examples. These results are essential to identify water or gas entry, to guide flow control devices in intelligent completions, and to decide if reservoir stimulation is needed in particular horizontal sections. This study will complete and validate these inversion studies.

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confidence: 77%

“…They are determined experimentally (Franca and Lahey, 1992;Shi et al, 2005). In the last two chapters, we have derived the wellbore and reservoir equations.…”

Section: Oil-water Two-phase Flowmentioning

confidence: 99%

A Comprehensive Statistically-Based Method to Interpret Real-Time Flowing Measurements

Yoshioka¹,

Dawkrajai²,

Romero³

et al. 2007

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“…For slug and bubbly flow regimes, the Zuber-Findlay relation has been experimentally verified for a broad range of parameters (Bendiksen, 1984;França and Lahey, 1992;Hibiki and Ishii, 2002).…”

Section: Constitutive Relationsmentioning

confidence: 94%

Thermo- and fluid-dynamical modelling of two-phase multi-component carbon dioxide mixtures☆

Munkejord

Jakobsen

Austegard

et al. 2010

International Journal of Greenhouse Gas Control

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A method for calculating the transport and depressurization of a two-phase multicomponent CO 2 mixture is presented. The thermodynamical and transport properties for a CO 2 -CH 4 mixture are calculated using the Soave-Redlich-Kwong equation of state (SRK). The fluid flow is described by a drift-flux model, which is solved using the multi-stage (MUSTA) centred scheme. Numerical results are shown, illustrating the effect of mixture composition and the feasibility of the approach.

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“…The validity of (16) is limited to the slug and bubbly flow regimes. However, for these regimes the Zuber-Findlay law has been experimentally verified for a broad range of parameters [4,12]. In the numerical Section 4, we put particular emphasis on the Zuber-Findlay law.…”

Section: Hydrodynamic Submodelsmentioning

confidence: 95%

The approximate Riemann solver of Roe applied to a drift-flux two-phase flow model

Flåtten¹,

Munkejord²

2006

ESAIM: M2AN

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Abstract.We construct a Roe-type numerical scheme for approximating the solutions of a driftflux two-phase flow model. The model incorporates a set of highly complex closure laws, and the fluxes are generally not algebraic functions of the conserved variables. Hence, the classical approach of constructing a Roe solver by means of parameter vectors is unfeasible. Alternative approaches for analytically constructing the Roe solver are discussed, and a formulation of the Roe solver valid for general closure laws is derived. In particular, a fully analytical Roe matrix is obtained for the special case of the Zuber-Findlay law describing bubbly flows. First and second-order accurate versions of the scheme are demonstrated by numerical examples.Mathematics Subject Classification. 35L65, 76M12, 76T10.

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The use of drift-flux techniques for the analysis of horizontal two-phase flows

Cited by 100 publications

References 14 publications

A Comprehensive Statistically-Based Method to Interpret Real-Time Flowing Measurements

A Comprehensive Statistically-Based Method to Interpret Real-Time Flowing Measurements

Thermo- and fluid-dynamical modelling of two-phase multi-component carbon dioxide mixtures☆

The approximate Riemann solver of Roe applied to a drift-flux two-phase flow model

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