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Improvement of 4 ư inches cemented monobore design to reduce well cost

This study focuses on the improvement of 4½ inches cemented monobore completion conceptual design through a detailed engineering analysis where it is one of the efforts to reduce well cost without jeopardizing safety and well integrity. A thorough planning on well completion design is imperative to...

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Main Author: Fazilah, Siti Rodhiah
Format: Thesis
Language:English
Published: 2020
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/92049/1/SitiRodhiahFazilahMSChE2020.pdf
http://eprints.utm.my/id/eprint/92049/
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spelling my.utm.920492021-08-30T05:11:08Z http://eprints.utm.my/id/eprint/92049/ Improvement of 4 ư inches cemented monobore design to reduce well cost Fazilah, Siti Rodhiah TP Chemical technology This study focuses on the improvement of 4½ inches cemented monobore completion conceptual design through a detailed engineering analysis where it is one of the efforts to reduce well cost without jeopardizing safety and well integrity. A thorough planning on well completion design is imperative to ensure successful delivery of the well. In this research work, the initial plan was to develop overpressured K reservoir with 4½ inches tieback monobore completion. It is a proven concept which can deliver the well safely and without any well integrity issues. During the conceptual design planning in 2013, the oil price was high at USD110/bbl and the tieback monobore well completion design was optimized to 4½ inches cemented monobore with lower cost to improve the project economics. When the detail design planning in 2016, the global oil price crash to USD30/bbl and high MYR vs. USD exchange rate was observed. There was a need to redesign the cemented monobore well to further reduce the overall well cost and improve the project economic of the well. The study also focused on collaborative well planning with multi-disciplinaries teams, selection of critical well completion equipment, and tubing stress analysis using WELLCATTM simulation program to improve the cemented monobore well design to lower the cost without jeopardizing safety and well integrity. The improved cemented monobore design has reduced the well casing schemes; from five casing schemes to four casing schemes through the collaborative well planning initiative. The selection of Weatherford multi-latch in plug, Welltec well annular barrier, and Halliburton SP cement-thru TRSV as critical well completion equipment for cement plug and accessories, and cement-thru packer have preserved the well safety and integrity. The 4½ inches, 12.6 ppf, 13Cr-L80, JFE BEAR tubing string and 9? inches, 47 ppf, L80, JFE BEAR casing string satisfy the tubing load and the annular fluid expansion requirement from WELLCATTM simulation. 2020 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/92049/1/SitiRodhiahFazilahMSChE2020.pdf Fazilah, Siti Rodhiah (2020) Improvement of 4 ư inches cemented monobore design to reduce well cost. Masters thesis, Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:139164
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Fazilah, Siti Rodhiah
Improvement of 4 ư inches cemented monobore design to reduce well cost
description This study focuses on the improvement of 4½ inches cemented monobore completion conceptual design through a detailed engineering analysis where it is one of the efforts to reduce well cost without jeopardizing safety and well integrity. A thorough planning on well completion design is imperative to ensure successful delivery of the well. In this research work, the initial plan was to develop overpressured K reservoir with 4½ inches tieback monobore completion. It is a proven concept which can deliver the well safely and without any well integrity issues. During the conceptual design planning in 2013, the oil price was high at USD110/bbl and the tieback monobore well completion design was optimized to 4½ inches cemented monobore with lower cost to improve the project economics. When the detail design planning in 2016, the global oil price crash to USD30/bbl and high MYR vs. USD exchange rate was observed. There was a need to redesign the cemented monobore well to further reduce the overall well cost and improve the project economic of the well. The study also focused on collaborative well planning with multi-disciplinaries teams, selection of critical well completion equipment, and tubing stress analysis using WELLCATTM simulation program to improve the cemented monobore well design to lower the cost without jeopardizing safety and well integrity. The improved cemented monobore design has reduced the well casing schemes; from five casing schemes to four casing schemes through the collaborative well planning initiative. The selection of Weatherford multi-latch in plug, Welltec well annular barrier, and Halliburton SP cement-thru TRSV as critical well completion equipment for cement plug and accessories, and cement-thru packer have preserved the well safety and integrity. The 4½ inches, 12.6 ppf, 13Cr-L80, JFE BEAR tubing string and 9? inches, 47 ppf, L80, JFE BEAR casing string satisfy the tubing load and the annular fluid expansion requirement from WELLCATTM simulation.
format Thesis
author Fazilah, Siti Rodhiah
author_facet Fazilah, Siti Rodhiah
author_sort Fazilah, Siti Rodhiah
title Improvement of 4 ư inches cemented monobore design to reduce well cost
title_short Improvement of 4 ư inches cemented monobore design to reduce well cost
title_full Improvement of 4 ư inches cemented monobore design to reduce well cost
title_fullStr Improvement of 4 ư inches cemented monobore design to reduce well cost
title_full_unstemmed Improvement of 4 ư inches cemented monobore design to reduce well cost
title_sort improvement of 4 ư inches cemented monobore design to reduce well cost
publishDate 2020
url http://eprints.utm.my/id/eprint/92049/1/SitiRodhiahFazilahMSChE2020.pdf
http://eprints.utm.my/id/eprint/92049/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:139164
_version_ 1709667377294082048
score 13.211869

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