Comparing driller's and engineer's methods to control kick for basement reservoirs

There are various difficulties involved in drilling operations in the oil and gas industry. Well control is considered the most vital one. Well control systems are applied when a kick is detected entering the wellbore from the formation. Kicks occur when formation pressure is greater than wellbore p...

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Main Author:	Sharafaddin, Osama
Format:	Thesis
Language:	English
Published:	2018
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/92828/1/OsamaSharafaddinMSChE018.pdf
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spelling	my-utm-ep.928282021-10-28T10:25:34Z Comparing driller's and engineer's methods to control kick for basement reservoirs 2018 Sharafaddin, Osama TP Chemical technology There are various difficulties involved in drilling operations in the oil and gas industry. Well control is considered the most vital one. Well control systems are applied when a kick is detected entering the wellbore from the formation. Kicks occur when formation pressure is greater than wellbore pressure causing an influx of gas into the wellbore. Uncontrolled gas kicks have the potential to cause a blowout, resulting in financial loss, possibility of injury, loss of live, and pollution. Once a gas kick is detected, it has to be circulated out safely and efficiently to surface. While the influx of gas migrates in the wellbore toward the surface, it affects different parameters such drill pipe pressure, annulus pressure, fracture pressure, bottomhole pressure, and casing shoe pressure. This work investigates and analyses these pressure changes that act on these parameters during well control. A Drillbench simulator was used to conduct a comprehensive comparison between the Driller’s and Engineer’s method to determine the most effective method to kill the well in basement reservoirs. A case study was conducted on a Masila basement reservoir, since fractured basement is becoming an important oil and gas contributor to the petroleum industry. Engineer’s method showed better results and more advantages over Driller’s method since it would require only one circulation to kill the well and no potential for further kicks. The sensitivity analysis proved that kick size and kick intensity have significant effect while circulating the kick. The bigger the size of kick the higher pressure profile was noticed. Similarly, an increase in kick intensity would result in increasing choke pressure, casing shoe pressure and pump pressure. 2018 Thesis http://eprints.utm.my/id/eprint/92828/ http://eprints.utm.my/id/eprint/92828/1/OsamaSharafaddinMSChE018.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:131993 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 Sharafaddin, Osama Comparing driller's and engineer's methods to control kick for basement reservoirs
description	There are various difficulties involved in drilling operations in the oil and gas industry. Well control is considered the most vital one. Well control systems are applied when a kick is detected entering the wellbore from the formation. Kicks occur when formation pressure is greater than wellbore pressure causing an influx of gas into the wellbore. Uncontrolled gas kicks have the potential to cause a blowout, resulting in financial loss, possibility of injury, loss of live, and pollution. Once a gas kick is detected, it has to be circulated out safely and efficiently to surface. While the influx of gas migrates in the wellbore toward the surface, it affects different parameters such drill pipe pressure, annulus pressure, fracture pressure, bottomhole pressure, and casing shoe pressure. This work investigates and analyses these pressure changes that act on these parameters during well control. A Drillbench simulator was used to conduct a comprehensive comparison between the Driller’s and Engineer’s method to determine the most effective method to kill the well in basement reservoirs. A case study was conducted on a Masila basement reservoir, since fractured basement is becoming an important oil and gas contributor to the petroleum industry. Engineer’s method showed better results and more advantages over Driller’s method since it would require only one circulation to kill the well and no potential for further kicks. The sensitivity analysis proved that kick size and kick intensity have significant effect while circulating the kick. The bigger the size of kick the higher pressure profile was noticed. Similarly, an increase in kick intensity would result in increasing choke pressure, casing shoe pressure and pump pressure.
format	Thesis
qualification_level	Master's degree
author	Sharafaddin, Osama
author_facet	Sharafaddin, Osama
author_sort	Sharafaddin, Osama
title	Comparing driller's and engineer's methods to control kick for basement reservoirs
title_short	Comparing driller's and engineer's methods to control kick for basement reservoirs
title_full	Comparing driller's and engineer's methods to control kick for basement reservoirs
title_fullStr	Comparing driller's and engineer's methods to control kick for basement reservoirs
title_full_unstemmed	Comparing driller's and engineer's methods to control kick for basement reservoirs
title_sort	comparing driller's and engineer's methods to control kick for basement reservoirs
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering
granting_department	Faculty of Engineering - School of Chemical & Energy Engineering
publishDate	2018
url	http://eprints.utm.my/id/eprint/92828/1/OsamaSharafaddinMSChE018.pdf
_version_	1747818613568438272

Comparing driller's and engineer's methods to control kick for basement reservoirs

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