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Simulation Study on Gravity Assisted Simultaneous Water and Gas (GASWAG) Injection for Thin Oil Rim

Fatihah Zainudain, Yuhanis (2014) Simulation Study on Gravity Assisted Simultaneous Water and Gas (GASWAG) Injection for Thin Oil Rim. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Thin oil rim is thin reservoir oil column that has an overlying gas cap and underlying aquifer. Oil rim reservoir is always associated with coning problem, gas smeared and oil lost into gas cap that will reduce the oil recovery factor. One of the effective solution for the thin oil rim problem is gravity assisted simultaneous water and gas (GASWAG) method. The objective of this study is to investigate GASWAG method by changing the possible parameters that affected the process of the GASWAG method in order to maximize the oil production from thin oil rim and to conduct an economic feasibility study. The study is related to gas flooding, water flooding and GASWAG method. A model of GASWAG will be generated using Black Oil Simulator in computer laboratory. The parameters that changed in the GASWAG process are type of well producer, location of the producer, salinity of brine injection, mobility ratio, injection rate of fluid injected and well spacing. The most suitable producer for GASWAG process is a horizontal well that located in the middle of the oil column. Low water injection rate and high gas injection rate give favorable result. Excellent result was presented by the existence of polymer in the water injection at the gas-cap. The salinity of brine injection is insignificant for GASWAG process.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir Engineering - Reservoir rocks
Subject: T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Geoscience and Petroleum Engineering
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 29 Jan 2015 10:54
Last Modified: 25 Jan 2017 09:36
URI: http://utpedia.utp.edu.my/id/eprint/14595

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