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ASPHALTENE FLOW BAHA VIOR IN PRESENCE OF CARBON DIOXIDE (COz) GAS IN POROUS MEDIA

MOHD SAFRl, FATHIN HUZAIRA (2011) ASPHALTENE FLOW BAHA VIOR IN PRESENCE OF CARBON DIOXIDE (COz) GAS IN POROUS MEDIA. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

C02 injection is one of efficient enhanced oil recovery (EOR) methods among gas flooding. However, it may change the reservoir fluid properties and cause some problems such as asphaltene precipitation. Asphaltenes are components of petroleum whose behavior and structure change with pressure, temperature and oil composition. For this project, it will concentrate on the precipitation of asphaltene due to C02 injection process for enhanced oil recovery purposes. The asphaltenes turn into solid form and separate from the rest of the liquid oil. Unwanted asphaltene precipitation is a serious concern to the petroleum industry because asphaltenes plug up well bores, decrease production and could cause adverse affect on the oil recovery. Once these problems occur, it will need high investment of time and money to remove the asphaltene deposits from wells, transfer lines and storage facilities. To understand the mechanism of asphaltene deposition is necessary to develop effective engineering practice for minimizing the formation damage and to design the treatment program for restoring well productivity. Study shows that the amount of asphaltene precipitation is depend on the COz concentration. Same goes to reduction in rock porosity and permeability. Therefore this project will review on the Asphaltene flow behavior in presence of C02 gas in porous media and how it will cause problem to the well by developing mathematical considering the relationship of C02 concentration with the asphaltene precipitatio~ porosity and permeability reduction problems during COz flooding for Malaysia crude oil.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petrophysics - Data integration and field studies
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 06 Nov 2013 10:48
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10162

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