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Simulation of Non-newtonian Flow of Drilling Fluid Around the Drill String with the Olga Software

Sadri, Avazdordi | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 49594 (66)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Jamshidi, Saeed
  7. Abstract:
  8. Because of the importance of simulations in the oil industry, there are different software applications designed for this purpose. The purpose of the simulation in the oil industry is to reduce operational errors during the operation and to achieve the most ideal mode of operation. However, in the simulation of multiphase fluid flow because of the special circumstance, simulation plays an important role in the oil industry. OLGA multiphase flow simulation software is a strong simulation software for water, oil, Gas wells, wellhead facilities, refineries and pipelines and it is capable of simulating pipelines under various dynamic conditions. Simulation of drilling hydraulic parameters is very useful in future drilling operation. In this project the effect of kick fluid on drilling parameters and fluid rheology will be evaluated. Also the phenomenon of erosion will be checked in the presence of three fluids and three different kicks. In addition the effect of kick fluid on the change of drilling fluid density will be shown. When the drilling fluid is light, the density mixture after kick doesn’t change so much, but when drilling fluid is heavier, the mixture fluid decreases, noticeably. One of the crucial parameters in drilling operation is a change of pressure in the annulus and drillstring. In the section of results this parameter will be evaluated, especially
  9. Keywords:
  10. Simulation ; Drilling ; Multiphase Flow ; Drilling Fluid ; Non-Newtonian Fluids ; Pipe Casing ; OLGA Software

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