Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability

Drilling in swelling clay formation is rather challenging owing to the delicate formation of the wellbore. This is mostly because of the propensity of clay to swell when in contact with water. The high reactivity of swelling clays with water causes their constituents to swell and these can cause sev...

Full description

Saved in:

Bibliographic Details
Main Author:	Mat Nasir, Muhamad Hakim
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/86041/1/MuhamadHakimMatMSChE2019.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.86041
record_format	uketd_dc
spelling	my-utm-ep.860412020-08-30T08:49:45Z Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability 2019 Mat Nasir, Muhamad Hakim TP Chemical technology Drilling in swelling clay formation is rather challenging owing to the delicate formation of the wellbore. This is mostly because of the propensity of clay to swell when in contact with water. The high reactivity of swelling clays with water causes their constituents to swell and these can cause severe drilling problems, such as damage to the production zone. Potassium chloride (KCl) has been the most typical shale swelling control additive used to formulate WBM. However, at higher concentrations of KCl in WBM, the mud separates into two phases, which are liquid and sediments, and the swelling-control activity of the KCl is short-lived in WBM. A better efficient clay swelling-control additive, such as composite of polymer and nanoparticle, might be more effective. Therefore, in this study, the efficiency of synthesized polypropylene based nanosilica composite (PP-SiO2 NC) on clay swelling was carried out and its performance was compared to KCl mud and other types of water based mud. Samples of shale from Simpang Renggam shale formation were selected and tested for swelling behaviour over five different types of WBMs, which are (i) Basic mud (ii) KCl mud (iii) PP-SiO2 NC mud, (iv) Commercial SiO2 NP mud, and (v) Mixture of KCl and PP-SiO2 NC mud. At normal temperature 80°F and elevated temperature 250 °F, PP- SiO2 NC mud gave better results in the rheological properties such as gel strength, plastic viscosity, and yield point compared to other type of WBM. Improved shale swelling inhibition were achieved at a lower concentration (0.3 -1.0 g) of synthesized PP-SiO2 NC compared to 30g conventional KCl mud, which is required to attain its optimum inhibition level. 0.6g of PP-SiO2 NC based mud alone prove to be the best formulation as it only cause shale to swell up to 7.11% compared to KCl mud at 15.3%, mixture of KCl and PPSiO2 NC mud at 9.2%, and commercial SiO2 NP mud at 10%. Indubitably, the synthesized PP-SiO2 NC mud provide better in rheological properties at normal and elevated temperature and more efficient in minimizing clay swelling behaviour compared to other type of WBM and it has a higher propensity to prevent loss of filtrates into the formation. 2019 Thesis http://eprints.utm.my/id/eprint/86041/ http://eprints.utm.my/id/eprint/86041/1/MuhamadHakimMatMSChE2019.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:131985 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering Faculty of Engineering - School of Chemical & Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mat Nasir, Muhamad Hakim Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
description	Drilling in swelling clay formation is rather challenging owing to the delicate formation of the wellbore. This is mostly because of the propensity of clay to swell when in contact with water. The high reactivity of swelling clays with water causes their constituents to swell and these can cause severe drilling problems, such as damage to the production zone. Potassium chloride (KCl) has been the most typical shale swelling control additive used to formulate WBM. However, at higher concentrations of KCl in WBM, the mud separates into two phases, which are liquid and sediments, and the swelling-control activity of the KCl is short-lived in WBM. A better efficient clay swelling-control additive, such as composite of polymer and nanoparticle, might be more effective. Therefore, in this study, the efficiency of synthesized polypropylene based nanosilica composite (PP-SiO2 NC) on clay swelling was carried out and its performance was compared to KCl mud and other types of water based mud. Samples of shale from Simpang Renggam shale formation were selected and tested for swelling behaviour over five different types of WBMs, which are (i) Basic mud (ii) KCl mud (iii) PP-SiO2 NC mud, (iv) Commercial SiO2 NP mud, and (v) Mixture of KCl and PP-SiO2 NC mud. At normal temperature 80°F and elevated temperature 250 °F, PP- SiO2 NC mud gave better results in the rheological properties such as gel strength, plastic viscosity, and yield point compared to other type of WBM. Improved shale swelling inhibition were achieved at a lower concentration (0.3 -1.0 g) of synthesized PP-SiO2 NC compared to 30g conventional KCl mud, which is required to attain its optimum inhibition level. 0.6g of PP-SiO2 NC based mud alone prove to be the best formulation as it only cause shale to swell up to 7.11% compared to KCl mud at 15.3%, mixture of KCl and PPSiO2 NC mud at 9.2%, and commercial SiO2 NP mud at 10%. Indubitably, the synthesized PP-SiO2 NC mud provide better in rheological properties at normal and elevated temperature and more efficient in minimizing clay swelling behaviour compared to other type of WBM and it has a higher propensity to prevent loss of filtrates into the formation.
format	Thesis
qualification_level	Master's degree
author	Mat Nasir, Muhamad Hakim
author_facet	Mat Nasir, Muhamad Hakim
author_sort	Mat Nasir, Muhamad Hakim
title	Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
title_short	Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
title_full	Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
title_fullStr	Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
title_full_unstemmed	Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
title_sort	application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering
granting_department	Faculty of Engineering - School of Chemical & Energy Engineering
publishDate	2019
url	http://eprints.utm.my/id/eprint/86041/1/MuhamadHakimMatMSChE2019.pdf
_version_	1747818484440498176

Application of polypropylene nanosilica as additives in water based mud to improve rheological properties and shale stability

Similar Items