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ALCOHOL AS AN ADDITIVE TO INCREASE C02 AND CRUDE OIL MISCIBILITY

Mustapa Albakari, Nafis Alsahmi (2011) ALCOHOL AS AN ADDITIVE TO INCREASE C02 AND CRUDE OIL MISCIBILITY. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Alcohol as a solvent can reduce minimum miscibility pressure (MMP) of C02 flooding for enhanced oil recovery (EOR). C02 is not feasible for high temperature and waxy reservoir. The objective of this study is to solve the problem by using alcohol in order to reduce minimum miscibility pressure between C02 and crude oil. In this research, the author used benzyl alcohol, branched alcohol and normal alcohol. Although alcohol is often used as a co-surfactant and only a small amount is needed, but alcohol can be used as the main IFT reducing agent if it can be produced cheaply. Alcohol enhances the solvating power and polarity of carbon dioxide in crude oil. In this project, an attempt had been done by using four types of alcohol which are phenol, 2-methyl-2-butanol, 2-methyl-1-butanol and 2-butanol. The alcohols were tested on Dulang crude oil at 60 ·c in order to see the effect of branching, cyclic and straight chain alcohol on solubility of C02 into crude oil. Vanishing interfacial tension method is used to obtain MMP. All alcohols had been tested and the results showed that branched alcohol is a very good MMP reduction agent compared to benzyl and normal alcohol. The branched alcohol reduced MMP up to 23%. Optimum concentration is being tested for branched alcohols. The optimum concentration was 50% pore volume for pressure at 1500 psi. Branched alcohol is efficient in lowering the MMP and should be considered in EOR.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir Engineering - Reservoir fluid properties
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 08 Nov 2013 11:37
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10346

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