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Effect ofEOR Surfactant on Reservoir Rock Wettability

Shuib, Amir Safwan (2010) Effect ofEOR Surfactant on Reservoir Rock Wettability. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Th~: use of surfaGtant is proposed as on~: of the m~:thods to ~:nhance the oil recovery from reservoir whereby the conventional methods such as waterflood and production by natural drive are no longer sufficient to produce the remaining oil. Primarily the ability of surfactant to reduce the oil-water interfacial tension and alter the reservoir wettability making it a viable option being explored today. 1FT reduction will increase the oil mobility thus contributing for greater oil recovery. Wettability alteration from oil wet to water wet or less oil wet will improve water imbibition. This study focus on the effect of surfactant concentrations on reservoir rock wettability (contact angle). Synthetic brine (Sodium Chloride, 1500ppm), crude oil (Baronia) and an ionic surfactant (Sodium Dodecyl Sulfate, 0, 500, 1500, 3000 and 5000ppm) have been used in this study. Sessile up or bubble technique has been used to obtain the contact angle. A high speed magnifying camera produced a live video feed that enable image capture of the oil bubble for contact angle analysis. The contact angle is found to increase from 40.36° to 52.59° for the test with 0 ppm and 500 ppm surfactant respectively. This change of wettability to less water wet condition is discussed in the result and discussion sections. The experiment is repeated for the 500 ppm and 1500 ppm surfactant concentration where the contact angles were found to decrease from 40.24° to 25.20° respectively.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Reservoir Engineering - EOR and IOR - Chemical EOR
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 22 Oct 2013 11:56
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/9363

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