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Simulation of Viscous Fingering during WAG in Presence of Asphaltene

Ahmad Tarmizi, Muhammad Farid (2011) Simulation of Viscous Fingering during WAG in Presence of Asphaltene. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Asphaltene precipitation and VIscous fmgering are two serious problems encountered during gas injection. The objective of this project is to study the effect of asphaltene deposition on viscous fingering and oil recovery. This project includes critical literature review and simulation work. The simulation work has been done using a compositional oil simulator, CMG GEM. Two types of formation have been modeled; without asphaltene deposition and with asphaltene deposition. Fluid flow through the two formations has been simulated to observe viscous fingering that happens during carbon dioxide (C02) injection and water-alternating-gas (WAG) injection. Results show that presence of asphaltene slows down the propagation of viscous fingering and production of oil. At a similar injected pore volume (PVI), presence of asphaltene does not change the shape and size of viscous fingering during C~ injection but it slightly changes the shape and size of viscous fingering during different types of WAG injection. In addition, less fingering is observed at higher WAG ratio and severe fingering is observed in the case of C02 injection and lower WAG ratio.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petroleum Engineering - Modelling and simulation - Complex reservoir simulation
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/8587

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