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Effect of Drag Reducing Agents (DRA) in Water Injection Well

Applying drag reducing agent (DRA) into water injection system has improved injection capacity of wells by reducing the friction that occurs inside the well tubing. Many studies were conducted to understand the behaviour and optimise the performance of DRA when applied in multiphase flow. However,...

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Main Author: Abd Rahman, Iz’aan ‘Irfan
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2012
Subjects:
TC Hydraulic engineering. Ocean engineering
Online Access:http://utpedia.utp.edu.my/3453/1/%28revised_2%2911542_Effect_of_DRA_on_Water_Injection_Wells.pdf
http://utpedia.utp.edu.my/3453/
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spelling my-utp-utpedia.34532017-01-25T09:40:29Z http://utpedia.utp.edu.my/3453/ Effect of Drag Reducing Agents (DRA) in Water Injection Well Abd Rahman, Iz’aan ‘Irfan TC Hydraulic engineering. Ocean engineering Applying drag reducing agent (DRA) into water injection system has improved injection capacity of wells by reducing the friction that occurs inside the well tubing. Many studies were conducted to understand the behaviour and optimise the performance of DRA when applied in multiphase flow. However, less study is being done to evaluate the effect of DRA on the formation, especially in the near wellbore zone. It is expected that DRA in injected water will cause permeability reduction, albeit the factor and exact percentage of reduction are subject to the current study. A water injection system using core flood equipment was used in this work. Polyacrylamide (PAM) and polysaccharide (Xanthan Gum) were mechanically degraded under high shear rates before injected into the core to simulate field condition. Injection rates were varied so that the relationship between permeability reduction and the rates could be established. It is found that low injection rate of 1cc/min gives more permeability reduction compared to high injection rates at 5cc/min, while Xanthan gum DRA solution gives more permeability reduction compared to polysaccharide DRA solution. Backflow was performed to restore core permeability, but the permeability restored was less than initial permeability. CT scan was run to study the permeability reduction of the core. However, no significant difference was observed. It is suggested that the injection rates need to be considered when designing the water injection wells with DRA additives. Universiti Teknologi Petronas 2012-05 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/3453/1/%28revised_2%2911542_Effect_of_DRA_on_Water_Injection_Wells.pdf Abd Rahman, Iz’aan ‘Irfan (2012) Effect of Drag Reducing Agents (DRA) in Water Injection Well. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TC Hydraulic engineering. Ocean engineering
spellingShingle TC Hydraulic engineering. Ocean engineering
Abd Rahman, Iz’aan ‘Irfan
Effect of Drag Reducing Agents (DRA) in Water Injection Well
description Applying drag reducing agent (DRA) into water injection system has improved injection capacity of wells by reducing the friction that occurs inside the well tubing. Many studies were conducted to understand the behaviour and optimise the performance of DRA when applied in multiphase flow. However, less study is being done to evaluate the effect of DRA on the formation, especially in the near wellbore zone. It is expected that DRA in injected water will cause permeability reduction, albeit the factor and exact percentage of reduction are subject to the current study. A water injection system using core flood equipment was used in this work. Polyacrylamide (PAM) and polysaccharide (Xanthan Gum) were mechanically degraded under high shear rates before injected into the core to simulate field condition. Injection rates were varied so that the relationship between permeability reduction and the rates could be established. It is found that low injection rate of 1cc/min gives more permeability reduction compared to high injection rates at 5cc/min, while Xanthan gum DRA solution gives more permeability reduction compared to polysaccharide DRA solution. Backflow was performed to restore core permeability, but the permeability restored was less than initial permeability. CT scan was run to study the permeability reduction of the core. However, no significant difference was observed. It is suggested that the injection rates need to be considered when designing the water injection wells with DRA additives.
format Final Year Project
author Abd Rahman, Iz’aan ‘Irfan
author_facet Abd Rahman, Iz’aan ‘Irfan
author_sort Abd Rahman, Iz’aan ‘Irfan
title Effect of Drag Reducing Agents (DRA) in Water Injection Well
title_short Effect of Drag Reducing Agents (DRA) in Water Injection Well
title_full Effect of Drag Reducing Agents (DRA) in Water Injection Well
title_fullStr Effect of Drag Reducing Agents (DRA) in Water Injection Well
title_full_unstemmed Effect of Drag Reducing Agents (DRA) in Water Injection Well
title_sort effect of drag reducing agents (dra) in water injection well
publisher Universiti Teknologi Petronas
publishDate 2012
url http://utpedia.utp.edu.my/3453/1/%28revised_2%2911542_Effect_of_DRA_on_Water_Injection_Wells.pdf
http://utpedia.utp.edu.my/3453/
_version_ 1739831042388262912
score 13.211869

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