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Pore-wall Stability in some Carbonates from Sarawak

Zainal Abidin, Muhamad Zakwan (2011) Pore-wall Stability in some Carbonates from Sarawak. Universiti Teknologi Petronas. (Unpublished)

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Carbonates are a class of sedimentary rocks composed primarily of carbonate minerals. The two major types are limestone, which is composed of calcite or aragonite and dolostone, which is composed of the mineral dolomite. There is still a lack of knowledge in the behavior of limestone found in Malaysia to acidification technology. This study is conducted in order to understand the performance of the rock so that we can enhance the production of oil as well as enhance C02 sequestration. Therefore, the objective of this study is to identify the effects of organic and inorganic acids on the dissolution kinetics of selected carbonates. Pore-wall stability is affected by the fabric of the rock and various geochemical conditions such as mineralogy, composition, solids content, rheology, filtrate and its mineral compositions. External acidizing experiments was conducted in order to understand the behavior and performance of the core samples. From this experiment, the result shows that kinetics dissolution for both samples are higher when immersed in inorganic acid compared to organic acid. This is mainly because inorganic acid have higher value of acid dissociation constant (pKa) compared to organic acid. This project also won a bronze medal in the 281 h Science and Engineering Design Exhibition (SEDEX) competition held at UTP on August 10-11, 2011.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petrophysics - Petrophysical data acquisition
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 13 Nov 2013 17:17
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/10599

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