Experimental and Numerical Study of Oil Displacement in Porous Model

  • Somayya Taher

Student thesis: Master's Thesis

Abstract

The United Arab Emirates is one of the leading oil and gas reservoirs in the world. The country is the world's sixth largest oil producer and is the second largest producer of petroleum according to Organization of Petroleum Exporting Countries (OPEC). This ranking makes the use of Enhanced oil recovery (EOR) methods essential to increase the oil production and ensure that its ranking increases. Since it is difficult to find new oil reservoirs, so improving the recovery methods of the current reservoirs is necessary. The country has high potential and prospects of using the Enhanced Oil Recovery in order to meet the growing energy demand in the coming years.Currently, the UAE government has plans to expand the production by 30% by 2020. UAE's target makes this project crucial to ensure that the country meets its agendas. This can be achieved through using a proper EOR methods such as Water Alternating Gas (WAG), Chemical, CO2 and Foam injection. Since using the primary and secondary recovery methods have a limited oil recovery, so using EOR methods will offer future of UAE oil's production sector. Foam injection is one of the EOR methods that has been employed for oil production and has proven to be advantageous in the control of mobility of gas through a porous medium. In addition, foam injection has been effective in reducing effects through tunneling, fingering and gravity segregation methods by reducing the displacement of fluid mobility. The use of foam will be able to extend the lifespan of producing fields in the long run by maintaining a high oil recovery. Moreover, foam injection is a key method to enhance efficient mobilizing oil where gas sweeps. This is achieved where poor volumetric efficiencies are experienced due to gravity segregation, viscous instability, and heterogeneity. Foam inject as a key method which is important to enhance oil recovery process for the reservoir. This will be a key milestone for the UAE's oil reservoir and achieve the different targets for the future of the oil industry. The aim of this research is to investigate experimentally and numerically the application of foam injection into laboratory scaled porous media as an enhanced oil recovery method comparing to other methods such as water, gas, and water alternating gas. Also to investigate the importance of relative permeability model as a function to describe the fluid flow in porous media.
Date of AwardJul 2018
Original languageAmerican English
SupervisorHamid Abderrahmane (Supervisor)

Keywords

  • Enhanced Oil Recovery
  • Water Alternating Gas (WAG) Injection
  • Foam Injection
  • Oil Recovery
  • Mobility

Cite this

'