Drilling through gas-hydrate sediments: managing wellbore-stability risks
As hydrocarbon exploration and development moves into deeper water and onshore Arctic environments, it becomes increasingly important to quantify the drilling hazards posed by gas hydrates. To address these concerns, a 1D semianalytical model for heat and fluid transport in the reservoir was coupled...
Published in: | SPE Drilling & Completion |
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ftuglasgow:oai:eprints.gla.ac.uk:170295 2023-05-15T15:07:28+02:00 Drilling through gas-hydrate sediments: managing wellbore-stability risks Khabibullin, Tagir Falcone, Gioia Teodoriu, Catalin 2011-06 http://eprints.gla.ac.uk/170295/ unknown Society of Petroleum Engineers Khabibullin, T., Falcone, G. <http://eprints.gla.ac.uk/view/author/46939.html> and Teodoriu, C. (2011) Drilling through gas-hydrate sediments: managing wellbore-stability risks. SPE Drilling and Completion <http://eprints.gla.ac.uk/view/journal_volume/SPE_Drilling_and_Completion.html>, 26(2), pp. 287-294. (doi:10.2118/131332-PA <http://dx.doi.org/10.2118/131332-PA>) Articles PeerReviewed 2011 ftuglasgow https://doi.org/10.2118/131332-PA 2020-01-10T01:44:48Z As hydrocarbon exploration and development moves into deeper water and onshore Arctic environments, it becomes increasingly important to quantify the drilling hazards posed by gas hydrates. To address these concerns, a 1D semianalytical model for heat and fluid transport in the reservoir was coupled with a numerical model for temperature distribution along the wellbore. This combination allowed the estimation of the dimensions of the hydrate-bearing layer where the initial pressure and temperature can dynamically change while drilling. These dimensions were then used to build a numerical reservoir model for the simulation of the dissociation of gas hydrate in the layer. The bottomhole pressure (BHP) and formation properties used in this workflow were based on a real-field case. The results provide an understanding of the effects of drilling through hydrate-bearing sediments (HBS) and of the impact of drilling-fluid temperature and BHP on changes in temperature and pore pressure within the surrounding sediments. It was found that the amount of gas hydrate that can dissociate will depend significantly on both initial formation characteristics and bottomhole conditions) namely, mud temperature and pressure). The procedure outlined in the paper can provide quantitative results of the impact of hydrate dissociation on wellbore stability, which can help in better design of drilling muds for ultradeepwater operations. Article in Journal/Newspaper Arctic University of Glasgow: Enlighten - Publications Arctic SPE Drilling & Completion 26 02 287 294 |
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University of Glasgow: Enlighten - Publications |
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ftuglasgow |
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description |
As hydrocarbon exploration and development moves into deeper water and onshore Arctic environments, it becomes increasingly important to quantify the drilling hazards posed by gas hydrates. To address these concerns, a 1D semianalytical model for heat and fluid transport in the reservoir was coupled with a numerical model for temperature distribution along the wellbore. This combination allowed the estimation of the dimensions of the hydrate-bearing layer where the initial pressure and temperature can dynamically change while drilling. These dimensions were then used to build a numerical reservoir model for the simulation of the dissociation of gas hydrate in the layer. The bottomhole pressure (BHP) and formation properties used in this workflow were based on a real-field case. The results provide an understanding of the effects of drilling through hydrate-bearing sediments (HBS) and of the impact of drilling-fluid temperature and BHP on changes in temperature and pore pressure within the surrounding sediments. It was found that the amount of gas hydrate that can dissociate will depend significantly on both initial formation characteristics and bottomhole conditions) namely, mud temperature and pressure). The procedure outlined in the paper can provide quantitative results of the impact of hydrate dissociation on wellbore stability, which can help in better design of drilling muds for ultradeepwater operations. |
format |
Article in Journal/Newspaper |
author |
Khabibullin, Tagir Falcone, Gioia Teodoriu, Catalin |
spellingShingle |
Khabibullin, Tagir Falcone, Gioia Teodoriu, Catalin Drilling through gas-hydrate sediments: managing wellbore-stability risks |
author_facet |
Khabibullin, Tagir Falcone, Gioia Teodoriu, Catalin |
author_sort |
Khabibullin, Tagir |
title |
Drilling through gas-hydrate sediments: managing wellbore-stability risks |
title_short |
Drilling through gas-hydrate sediments: managing wellbore-stability risks |
title_full |
Drilling through gas-hydrate sediments: managing wellbore-stability risks |
title_fullStr |
Drilling through gas-hydrate sediments: managing wellbore-stability risks |
title_full_unstemmed |
Drilling through gas-hydrate sediments: managing wellbore-stability risks |
title_sort |
drilling through gas-hydrate sediments: managing wellbore-stability risks |
publisher |
Society of Petroleum Engineers |
publishDate |
2011 |
url |
http://eprints.gla.ac.uk/170295/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Khabibullin, T., Falcone, G. <http://eprints.gla.ac.uk/view/author/46939.html> and Teodoriu, C. (2011) Drilling through gas-hydrate sediments: managing wellbore-stability risks. SPE Drilling and Completion <http://eprints.gla.ac.uk/view/journal_volume/SPE_Drilling_and_Completion.html>, 26(2), pp. 287-294. (doi:10.2118/131332-PA <http://dx.doi.org/10.2118/131332-PA>) |
op_doi |
https://doi.org/10.2118/131332-PA |
container_title |
SPE Drilling & Completion |
container_volume |
26 |
container_issue |
02 |
container_start_page |
287 |
op_container_end_page |
294 |
_version_ |
1766338971602780160 |