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DECREASING GAS MOBILITY TO ACHIEVE BETTER SWEEP EFFICIENCY IN FAWAG PROCESS

MHD NASIR, ISKANDAR (2011) DECREASING GAS MOBILITY TO ACHIEVE BETTER SWEEP EFFICIENCY IN FAWAG PROCESS. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The alternation of slugs of gas and water injection i.e. Water Alternating Gas (WAG) has been a common practice to obtain better mobility ratio and improve sweep efficiency 161.Eventually, WAG can suffer from viscous instability and gravity overriding and therefore has not always been a successful method on controlling gas mobility. Therefore, foams are then introduced to WAG for mobility control in enhanced oil recovery operations. This paper aims to prove it by lowering gas mobility better sweep efficiency can be achieved resulting in better oil recovery. Experiments on different gas mobility ratio will be conducted using the same core properties for each experiment and kept to reservoir conditions. The alteration of gas mobility is done by using sodium dodecyl sulphate (a type of surfactant) as a mobility control agent. Furthermore, the optimum concentration of surfactant is obtained for optimal oil recovery. This is done by varying the concentration of surfactant. To determine the outcome of this project, fluid collection of each experiment is observed for volume of oil accumulated. Simulation of the project is also conducted to make a comparison the experiment data in order to have a precise and accurate data thus making a solid conclusion. The methodology of the paper is included to show the organized process that is being followed and approximate duration of the project can be determined. In a nutshell, the experiments will lead to a conclusion whereby decreasing gas mobility better sweep efficiency can be achieved in a foam assisted water alternating gas (FA WAG) process.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir Engineering - EOR and IOR - Water flooding
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:20
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/7132

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