FACTORS AFFECTING PLASTERING EFFECT IN CASING WHILE DRILINNG
Casing while Drilling is simultaneous process of drilling and running casing. One of the benefits using Casing while Drilling technology is plastering effect. Plastering effect or smearing effect is a process where cuttings and drilling mud are plaster to the borehole by force of casing due to small...
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Universiti Teknologi Petronas
2013
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my-utp-utpedia.137802017-01-25T09:38:34Z http://utpedia.utp.edu.my/13780/ FACTORS AFFECTING PLASTERING EFFECT IN CASING WHILE DRILINNG MOHAMAD FARID, AIDIL AIZAT TJ Mechanical engineering and machinery Casing while Drilling is simultaneous process of drilling and running casing. One of the benefits using Casing while Drilling technology is plastering effect. Plastering effect or smearing effect is a process where cuttings and drilling mud are plaster to the borehole by force of casing due to small clearance between the annulus. This creates a thin mud cake that is less porous and less permeable, that helping to increase wellbore strength and reduce lost circulation during drilling. However, due to inconsistency of plastering effect during Casing while Drilling operation, it is hard to determine the factors that enhance plastering effect. The objective for this project is to determine the plastering effect factors using parametric studies. This project will focusing on vertical well and five drilling parameters. The parameters are casing size to wellbore size ratio, casing eccentricity, casing rotational speed, annular velocity and cutting volume fraction. For methodology, base case model is selected, such as the wellbore size of 0.4m and length of 4.2m. The simulation will be using two type of drilling fluid which is Newtonian and non-Newtonian fluid. Conclusion from the parametric study, in non-Newtonian fluid, the most contributing factors are cutting volume fraction, casing size to wellbore size ratio and casing rotational speed. While annular velocity and casing eccentricity does not contribute much. For Newtonian fluid, the most contributing factors are cutting volume fraction and casing size to open hole size ratio. While annular velocity, casing rotational speed and casing eccentricity still give lesser contribution in plastering effect. Comparing non-Newtonian and Newtonian fluid based on mud cake thickness and length, plastering effect are easily to produce in Newtonian fluid Universiti Teknologi Petronas 2013-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/13780/1/thesis.pdf MOHAMAD FARID, AIDIL AIZAT (2013) FACTORS AFFECTING PLASTERING EFFECT IN CASING WHILE DRILINNG. Universiti Teknologi Petronas. (Unpublished) |
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TJ Mechanical engineering and machinery MOHAMAD FARID, AIDIL AIZAT FACTORS AFFECTING PLASTERING EFFECT IN CASING WHILE DRILINNG |
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Casing while Drilling is simultaneous process of drilling and running casing. One of the benefits using Casing while Drilling technology is plastering effect. Plastering effect or smearing effect is a process where cuttings and drilling mud are plaster to the borehole by force of casing due to small clearance between the annulus. This creates a thin mud cake that is less porous and less permeable, that helping to increase wellbore strength and reduce lost circulation during drilling. However, due to inconsistency of plastering effect during Casing while Drilling operation, it is hard to determine the factors that enhance plastering effect. The objective for this project is to determine the plastering effect factors using parametric studies. This project will focusing on vertical well and five drilling parameters. The parameters are casing size to wellbore size ratio, casing eccentricity, casing rotational speed, annular velocity and cutting volume fraction. For methodology, base case model is selected, such as the wellbore size of 0.4m and length of 4.2m. The simulation will be using two type of drilling fluid which is Newtonian and non-Newtonian fluid. Conclusion from the parametric study, in non-Newtonian fluid, the most contributing factors are cutting volume fraction, casing size to wellbore size ratio and casing rotational speed. While annular velocity and casing eccentricity does not contribute much. For Newtonian fluid, the most contributing factors are cutting volume fraction and casing size to open hole size ratio. While annular velocity, casing rotational speed and casing eccentricity still give lesser contribution in plastering effect. Comparing non-Newtonian and Newtonian fluid based on mud cake thickness and length, plastering effect are easily to produce in Newtonian fluid |
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Final Year Project |
author |
MOHAMAD FARID, AIDIL AIZAT |
author_facet |
MOHAMAD FARID, AIDIL AIZAT |
author_sort |
MOHAMAD FARID, AIDIL AIZAT |
title |
FACTORS AFFECTING PLASTERING EFFECT
IN CASING WHILE DRILINNG |
title_short |
FACTORS AFFECTING PLASTERING EFFECT
IN CASING WHILE DRILINNG |
title_full |
FACTORS AFFECTING PLASTERING EFFECT
IN CASING WHILE DRILINNG |
title_fullStr |
FACTORS AFFECTING PLASTERING EFFECT
IN CASING WHILE DRILINNG |
title_full_unstemmed |
FACTORS AFFECTING PLASTERING EFFECT
IN CASING WHILE DRILINNG |
title_sort |
factors affecting plastering effect
in casing while drilinng |
publisher |
Universiti Teknologi Petronas |
publishDate |
2013 |
url |
http://utpedia.utp.edu.my/13780/1/thesis.pdf http://utpedia.utp.edu.my/13780/ |
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1739831932701638656 |
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13.18916 |