Chapter 5: Multiphase Flow: Field Applications
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Published:2018
"Multiphase Flow: Field Applications", Fluid Flow and Heat Transfers in Wellbores, Rashid Hasan, Shah Kabir
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The last three chapters presented various ways of estimating pressure loss during two-phase flow, from completely empirical to nearly mechanistic modeling approaches of varying complexity. This chapter presents field application of these models in vertical and deviated wells. In presenting these applications, we rely heavily on our own experience and those of our colleagues. We begin this chapter with an overall modeling approach that is grounded in simple physics and yet is quite general in applications, as presented earlier in Chapters 3 and 4. Therefore, this chapter may be viewed as a summary of our model. We show the modeling approach with specific applications to oil wells, gas/condensate wells, and liquid loading in gas wells. Last, the chapter addresses two-phase flow metering across surface chokes. Note that in three-phase flow we simply lump the two liquid phases, but discerning the physical properties of the oil/water mixture presents a challenge while estimating viscosity, interfacial tension, and other factors.
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