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Study of the Effect of Precipitation Inhibitor on Static and Dynamic Surfactant Adsorption Using High Salinity Injection Water

Mohd Rosdee, Mohammad Azwan Shahmee (2011) Study of the Effect of Precipitation Inhibitor on Static and Dynamic Surfactant Adsorption Using High Salinity Injection Water. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Adsorption of surfactants from aqueous solutions in porous media is very important in enhanced oil recovery {EOR) of oil reservoirs because surfactant loss due to adsorption on the reservoir rocks impairs the effectiveness of the chemical slurry injected to reduce the oil-water interfacial tension (1FT) and renders the process economically unfeasible. Surfactant adsorption is due to the different charges between slug and rock that will create attraction force. The different charges between the slug and rocks can be solved by increasing the pH of the slug. New developed method for surfactant formulation which is AAS is to overcome the problem of precipitation when using hard brine or high salinity water. In AAS, acid and alkali will react to form a salt that will coat the metal divalent ions such as magnesium and calcium from reacting with surfactant and alkali to form insoluble precipitation [1]. So, this research will study the effect of precipitation inhibitor {PI) on the surfactant adsorption using high salinity water injection. Surfactant that will be used is Alpha Olefin Sulfonate which is anionic surfactant. The acid and alkali are used are acrylic acid and sodium hydroxide. The surfactant adsorption will be measured in two different methods which are static and dynamic. For the static method, the experiment will be divided into 3 phases which are first phases is to find the optimum concentration of surfactant, second phase is to find the optimum concentration of the alkali and the third phase is to find the optimum concentration of acid. For dynamic method, the experiment will be conducted by varying the acid concentration in the surfactant solution that already included optimum concentration of surfactant and alkali. The surfactant concentration after each test will be measured by using two phase titration which will use Hyamine 1622 as titrant and mixed acid as indicator.

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: 09 Oct 2013 11:07
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/8604

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