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Determination of Suitable Parameters for Design of Nozzle & Diffuser of Surface Jet Pump for Transmission of Low-Pressure Oil Through High- Ressure Oil

Mohseni, Ali | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51247 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Arghavani Hadi, Jamal; Hakkaki Fard, Ali
  7. Abstract:
  8. Surface Jet Pump (ejector) is one of the most widely used equipment in the industry, which can be used in the oil and gas industry, propulsion and refrigeration systems. One of the uses of surface jet pumps in the oil and gas industry is the use of high-pressure wells to transfar low-pressure wells. The purpose of this research is to measure the transmission feasibility of low-pressure wells using surface jet pumps and optimize surface jet pump geometry. The purpose of optimizing the geometry of the surface jet pump is to maximize the ratio of the discharge rate from the low-pressure well to the high-pressure flow (entranment ratio). One of the most common methods for optimizing the performance of a surface jet pump is the use of Computational Fluid Dynamics, which is also used in this study. To optimize the geometric parameters affecting surface jet pump performance, Taguchi algorithm and modified one factor algorithm are used. The results show that according to available data, there is a possibility of transfer of low-pressure well flow using a surface jet pump, and also the optimal values of the geometric parameters of the surface jet pump are determined. Due to the different properties of the inputs to the surface jet pump, the optimization process is considered for three different modes. In the first case, the high pressure gas flow was used to transfer oil from the low-pressure well. In the second case, the pressure of the low-pressure well is increased by the high-pressure stream and in the third case, the high-pressure flow of the production unit is used to increase the pressure of the low-pressure well flow
  9. Keywords:
  10. Computational Fluid Dynamics (CFD) ; Multiphase Flow ; Taguchi Method ; Oil & Gas Process Equipment ; Surface Jet Pump

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