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Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud

Drilling fluids play important roles in drilling operations to suspend cuttings, counter high formation pressure and to ensure wellbore stability. Amongst the different types of drilling fluids, currently synthetic based muds are the choice drilling fluid due to its high performance in HPHT wells i...

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Main Author: Si, Claire Chang Li
Format: Final Year Project
Language:English
Published: Universiti Teknologi PETRONAS 2014
Subjects:
T Technology (General)
Online Access:http://utpedia.utp.edu.my/14219/1/dissertation%20final.pdf
http://utpedia.utp.edu.my/14219/
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spelling my-utp-utpedia.142192017-01-25T09:37:37Z http://utpedia.utp.edu.my/14219/ Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud Si, Claire Chang Li T Technology (General) Drilling fluids play important roles in drilling operations to suspend cuttings, counter high formation pressure and to ensure wellbore stability. Amongst the different types of drilling fluids, currently synthetic based muds are the choice drilling fluid due to its high performance in HPHT wells in terms of wellbore stability and high penetration rates. However, under HPHT conditions, the well will encounter thermal degradation of mud properties, which will affect the performance of the mud, such as fluid loss, unstable rheology and barite sag. Barite sag is an effect of high density and high solid content in muds, in which the heavy solids in the mud settle at the bottom of the wellbore causing pipe sticking and lost of circulation. The experiment was carried out at LPLT, starting of HPHT and extreme HPHT conditions with a varying nano-silica concentration of 0%(base case) to 40%. At different mud weights, the formulated drilling fluid will be tested for HPHT filtrate loss, stable rheology and static sag at a 45° tilt. Nano-silica has been proven in this project to be only effective for fluid loss and improve mud rheology due to the nature of nano-silica as a plugging agent. The nano-silica had no effect on barite sag as proven in this experiment. Nevertheless, the newly formulated mud is still effective for solving and preventing downhole problems. Universiti Teknologi PETRONAS 2014-05 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/14219/1/dissertation%20final.pdf Si, Claire Chang Li (2014) Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud. 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 T Technology (General)
spellingShingle T Technology (General)
Si, Claire Chang Li
Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud
description Drilling fluids play important roles in drilling operations to suspend cuttings, counter high formation pressure and to ensure wellbore stability. Amongst the different types of drilling fluids, currently synthetic based muds are the choice drilling fluid due to its high performance in HPHT wells in terms of wellbore stability and high penetration rates. However, under HPHT conditions, the well will encounter thermal degradation of mud properties, which will affect the performance of the mud, such as fluid loss, unstable rheology and barite sag. Barite sag is an effect of high density and high solid content in muds, in which the heavy solids in the mud settle at the bottom of the wellbore causing pipe sticking and lost of circulation. The experiment was carried out at LPLT, starting of HPHT and extreme HPHT conditions with a varying nano-silica concentration of 0%(base case) to 40%. At different mud weights, the formulated drilling fluid will be tested for HPHT filtrate loss, stable rheology and static sag at a 45° tilt. Nano-silica has been proven in this project to be only effective for fluid loss and improve mud rheology due to the nature of nano-silica as a plugging agent. The nano-silica had no effect on barite sag as proven in this experiment. Nevertheless, the newly formulated mud is still effective for solving and preventing downhole problems.
format Final Year Project
author Si, Claire Chang Li
author_facet Si, Claire Chang Li
author_sort Si, Claire Chang Li
title Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud
title_short Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud
title_full Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud
title_fullStr Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud
title_full_unstemmed Experimental Study on the Effect of Nano-silica on Mud Density in Synthetic Based Mud
title_sort experimental study on the effect of nano-silica on mud density in synthetic based mud
publisher Universiti Teknologi PETRONAS
publishDate 2014
url http://utpedia.utp.edu.my/14219/1/dissertation%20final.pdf
http://utpedia.utp.edu.my/14219/
_version_ 1739831976940011520
score 13.211869

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