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Micro Geopolymer Cement with Enhanced Physical Properties for Well Cementing

Zulkarnain, Nurul Nazmin (2014) Micro Geopolymer Cement with Enhanced Physical Properties for Well Cementing. Universiti Teknologi PETRONAS. (Unpublished)

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Ordinary Portland Cement (OPC) has been used widely in oil well industry. However, OPC creates high permeability between cement particles when exposes to HPHT environment inside the wellbore and also releases large amount of carbon dioxide (CO2) during manufacturing process. Previous research has been conducted to substitute OPC with geopolymer based cement such as fly ash. Geopolymer cement successfully reduces emission of CO2 to five to ten times less than OPC but still resulted in the same permeability trend as OPC. This project introduced micro silica in geopolymer cement to study its effect on the permeability problem in OPC and geopolymer cement. Four samples are developed with the percentage of micro silica range from 0% to 60%. The performance of developed samples are compared with Class G Cement (OPC) in term of permeability at HPHT (4000psi and 120 ℃ ) environment for three curing durations; 24 hours, 72 hours and 120 hours and fluid loss at LPLT environment (500psi and 70 ℃). Rheology and density test are compared at standard room conditions. The test results show the permeability of cement increase when increase the percentage of micro silica and curing duration. For static fluid loss test, increase in micro silica reduced the volume of filtrate. Two rheological model are observed from the samples; Power Law and Bingham Plastic Model. At standard room condition, the viscosity of cement slurry increased and density of samples decreased when increase the micro silica. Overall, Sample A, B and C can replace OPC up to 4000psi and 120℃ condition while all samples have better performance than OPC in term of fluid loss up to 500psi and 70℃, rheology and density environment and standard room condition.

Item Type: Final Year Project
Academic Subject : Petroleum Engineering
Subject: T Technology > T Technology (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 17 Oct 2014 09:02
Last Modified: 25 Jan 2017 09:37
URI: http://utpedia.utp.edu.my/id/eprint/14345

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