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Gas-Assisted Gravity Drainage in Naturally Fractured Reservoir

Shukor, Muhammad Ariff (2011) Gas-Assisted Gravity Drainage in Naturally Fractured Reservoir. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The major issue in any successful EOR is to increase sweep and microscopic displacement efficiency. In naturally fractured reservoir, the high permeability contrast between fracture and matrix becomes the main issue on the low oil recovery. The injected gas in conventional gas injection method tends to flow through high permeability fracture channel, displaces some oil in the fractures and moves toward the producer which results in early gas breakthrough. Consequently, most of oil in the matrix is left behind. Therefore, the main objective of this project is to investigate productivity of gas-assisted gravity drainage (GAGD) in naturally fractured reservoir. Previous lab experiment proved the prospect of GAGD as the replacement for existing teclmiques. In this simulation, an injector and a producer are simulated in a gridblock model. The simulation focuses on three (3) parameters which are horizontal producing well depth; horizontal producing well length and injection rate. Based on simulation result, the author anticipated to see the optimum parameters which give the highest recovery. Besides, the old method which are continuous gas injection (CGI) and water alternating gas (WAG) will be compared against GAGD based on literature review. The scopes of study will be revolving around the crude oil, the use of horizontal well and carbonate reservoir type. For methodology part, PVT data from the selected SPE papers are exported into dual porosity model which originally from Msc. Thesis of University of Texas. The outcome are analyzed and discussed thoroughly.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir characterization and well testing - Naturally fractured reservoirs
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 12 Nov 2013 14:59
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10484

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