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Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei

Drilling is a process to remove the cutting in the excavations and offshore industry. Polyacrylamide (PAM) is a commercial additive in the drilling industry nowadays, but PAM has poor thermal, chemical, and pile stability in the geotechnical industry. Therefore, the functionalised material is requir...

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Main Author: Koh , Jin Kwei
Format: Thesis
Published: 2022
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://studentsrepo.um.edu.my/15044/1/Koh_Jin_Kwei.pdf
http://studentsrepo.um.edu.my/15044/
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spelling my.um.stud.150442024-12-03T23:48:48Z Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei Koh , Jin Kwei TA Engineering (General). Civil engineering (General) Drilling is a process to remove the cutting in the excavations and offshore industry. Polyacrylamide (PAM) is a commercial additive in the drilling industry nowadays, but PAM has poor thermal, chemical, and pile stability in the geotechnical industry. Therefore, the functionalised material is required to be involved in the PAM-based drilling fluid. This study focuses on the modification of PAM incorporated with silica (SiO2). The rheological investigation was optimised using various PAM concentrations (500-2000 ppm) for the subsequent testing with the effect of SiO2, sodium dodecyl sulphate (SDS), temperature, and pH. Meanwhile, the promising formulation of modified PAM was identified via the rheological study with the effect of SiO2 and SDS. This formulation further studied the effect of temperature and pH. The drilling fluids were characterised by Fourier Transform Infrared Spectroscopy (FTIR), tensiometer, and contact angle. The results showed that 1000 ppm PAM was the critical association concentration as the rheological properties were better below 1000 ppm PAM. Further, 0.5 wt% SiO2 and 0.2 wt% SDS are promising formulations because both demonstrated better rheological performance than others. All modified PAM had better rheological performance than bare PAM. The rheological performance of PAM and modified PAM were significantly affected by temperature, which showed a better performance after heating to 60 °C and 40 °C, respectively. PAM and modified PAM had a better rheological performance at pH 10. Future studies can demonstrate the modified PAM in the bored pile construction to investigate the frictional resistance. 2022-12 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/15044/1/Koh_Jin_Kwei.pdf Koh , Jin Kwei (2022) Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei. Masters thesis, Universiti Malaya. http://studentsrepo.um.edu.my/15044/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Koh , Jin Kwei
Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei
description Drilling is a process to remove the cutting in the excavations and offshore industry. Polyacrylamide (PAM) is a commercial additive in the drilling industry nowadays, but PAM has poor thermal, chemical, and pile stability in the geotechnical industry. Therefore, the functionalised material is required to be involved in the PAM-based drilling fluid. This study focuses on the modification of PAM incorporated with silica (SiO2). The rheological investigation was optimised using various PAM concentrations (500-2000 ppm) for the subsequent testing with the effect of SiO2, sodium dodecyl sulphate (SDS), temperature, and pH. Meanwhile, the promising formulation of modified PAM was identified via the rheological study with the effect of SiO2 and SDS. This formulation further studied the effect of temperature and pH. The drilling fluids were characterised by Fourier Transform Infrared Spectroscopy (FTIR), tensiometer, and contact angle. The results showed that 1000 ppm PAM was the critical association concentration as the rheological properties were better below 1000 ppm PAM. Further, 0.5 wt% SiO2 and 0.2 wt% SDS are promising formulations because both demonstrated better rheological performance than others. All modified PAM had better rheological performance than bare PAM. The rheological performance of PAM and modified PAM were significantly affected by temperature, which showed a better performance after heating to 60 °C and 40 °C, respectively. PAM and modified PAM had a better rheological performance at pH 10. Future studies can demonstrate the modified PAM in the bored pile construction to investigate the frictional resistance.
format Thesis
author Koh , Jin Kwei
author_facet Koh , Jin Kwei
author_sort Koh , Jin Kwei
title Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei
title_short Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei
title_full Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei
title_fullStr Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei
title_full_unstemmed Modified polyacrylamide by incorporating silica for drilling fluid technology / Koh Jin Kwei
title_sort modified polyacrylamide by incorporating silica for drilling fluid technology / koh jin kwei
publishDate 2022
url http://studentsrepo.um.edu.my/15044/1/Koh_Jin_Kwei.pdf
http://studentsrepo.um.edu.my/15044/
_version_ 1818834456996216832
score 13.223943

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