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A Study on Two-Phase Flow in Bottom Hole Conditions in Horizontal Wells

Shenabi, Mohammad Amin | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 55718 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Shad, Saeed
  7. Abstract:
  8. Considering the importance of oil and gas industries in Iran, issues related to drilling and exploitation of oil and gas fields are among the country's priorities and challenges in industries, research centers and universities, and extensive research is conducted in this field. Since during the process of oil production from oil wells and reservoirs, the formation of multiphase flows, including two-phase fluid flow, is inevitable, investigating the behavior of multiphase fluids, which is a branch of fluid mechanics, is of special importance. In this regard, in continuation of the research conducted in the Faculty of Chemical and Petroleum Engineering of Sharif University of Technology, in this thesis, the aim is to study the two-phase fluid flow in the bottom hole conditions in horizontal wells. For this purpose, instead of the laboratory simulation, which is associated with challenges such as measurement errors, high costs of laboratory investigation, and time-consuming nature of the experimental investigation, the simulation of the problem of numerical modeling of oil-water two-phase flow is addressed using computational fluid dynamics via ANSYS FLUENT software. This software uses the finite volume method to solve the partial differential equations governing the two-phase fluid, which is a numerical solution method to solve computational fluid dynamics and heat transfer problems. In this research, the flow pattern and flow pressure drop inside the pipe for different water and oil flow rates and also different volume fractions of oil in the inlet flow are investigated for four flow patterns including stratified flow, dual continuous flow, dispersed water-in-oil flow and dispersed oil-in-water flow. The results of numerical modeling for each flow pattern are compared with the results of laboratory studies previously conducted by another group of researchers to evaluate the accuracy of the numerical modeling.


  9. Keywords:
  10. Multiphase Flow ; Flow Patterns ; Pressure Drop ; Horizontal Wells ; Finite Volume Method ; Numerical Modeling ; Horizontal Flow ; Fluid Velocity ; Fluid Volume Fraction ; Two Phase Water-Oil

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