Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees

China is actively advancing offshore oil and gas exploration and development, focusing on addressing the technical challenges associated with resource extraction in shallow waters. The shallow-water subsea tree development model has gradually been applied in such environments, alleviating some const...

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Main Authors: Zhiming Yin, Meipeng Ren, Yingwen Ma, Xiangqian Yang, Deqiang Tian, Haiwei Wang, Chengcheng Xiao, Jingyu Qu
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Journal of Marine Science and Engineering
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Online Access:https://www.mdpi.com/2077-1312/12/11/1909
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author Zhiming Yin
Meipeng Ren
Yingwen Ma
Xiangqian Yang
Deqiang Tian
Haiwei Wang
Chengcheng Xiao
Jingyu Qu
author_facet Zhiming Yin
Meipeng Ren
Yingwen Ma
Xiangqian Yang
Deqiang Tian
Haiwei Wang
Chengcheng Xiao
Jingyu Qu
author_sort Zhiming Yin
collection DOAJ
description China is actively advancing offshore oil and gas exploration and development, focusing on addressing the technical challenges associated with resource extraction in shallow waters. The shallow-water subsea tree development model has gradually been applied in such environments, alleviating some construction difficulties. However, it still poses well control risks that require systematic analysis and quantitative evaluation. Given that the blowout preventer (BOP) is located on the platform and the shallow-water subsea tree is only used during certain drilling stages, this study divided the drilling process into two phases: the first three sections and the fourth section. Based on the “man–machine–material–environment” analytical framework and an improved system-theoretic process analysis (STPA), a control model for the construction phases was developed. Fault tree analysis (FTA) was then employed to identify comprehensively the potential risks from the platform to the wellbore in both phases. Subsequently, the decision-making trial and evaluation laboratory (DEMATEL) method were used to assess quantitatively the well control risks. Using the average weight as the evaluation criterion, high-risk factors exceeding the average weight in each phase were identified. The results indicate that in the shallow-water subsea tree development model, well control risks in the first three drilling sections primarily stem from human errors and equipment failures, while risks in the fourth section are mainly caused by damage to the subsea tree itself. The identified risk factors provide a theoretical basis for enhancing well control safety management in the shallow-water subsea tree development model.
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issn 2077-1312
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publishDate 2024-10-01
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spelling doaj-art-e34495a57fdc44a9a0a81e3573a557a62024-11-26T18:07:53ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-10-011211190910.3390/jmse12111909Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea TreesZhiming Yin0Meipeng Ren1Yingwen Ma2Xiangqian Yang3Deqiang Tian4Haiwei Wang5Chengcheng Xiao6Jingyu Qu7CNOOC Research Institute Ltd., Beijing 100028, ChinaCNOOC Research Institute Ltd., Beijing 100028, ChinaCNOOC Research Institute Ltd., Beijing 100028, ChinaCNOOC Research Institute Ltd., Beijing 100028, ChinaCNOOC Research Institute Ltd., Beijing 100028, ChinaCNOOC Research Institute Ltd., Beijing 100028, ChinaSanya Offshore Oil & Gas Research Institute, Northeast Petroleum University, Sanya 572025, ChinaSanya Offshore Oil & Gas Research Institute, Northeast Petroleum University, Sanya 572025, ChinaChina is actively advancing offshore oil and gas exploration and development, focusing on addressing the technical challenges associated with resource extraction in shallow waters. The shallow-water subsea tree development model has gradually been applied in such environments, alleviating some construction difficulties. However, it still poses well control risks that require systematic analysis and quantitative evaluation. Given that the blowout preventer (BOP) is located on the platform and the shallow-water subsea tree is only used during certain drilling stages, this study divided the drilling process into two phases: the first three sections and the fourth section. Based on the “man–machine–material–environment” analytical framework and an improved system-theoretic process analysis (STPA), a control model for the construction phases was developed. Fault tree analysis (FTA) was then employed to identify comprehensively the potential risks from the platform to the wellbore in both phases. Subsequently, the decision-making trial and evaluation laboratory (DEMATEL) method were used to assess quantitatively the well control risks. Using the average weight as the evaluation criterion, high-risk factors exceeding the average weight in each phase were identified. The results indicate that in the shallow-water subsea tree development model, well control risks in the first three drilling sections primarily stem from human errors and equipment failures, while risks in the fourth section are mainly caused by damage to the subsea tree itself. The identified risk factors provide a theoretical basis for enhancing well control safety management in the shallow-water subsea tree development model.https://www.mdpi.com/2077-1312/12/11/1909shallow-water subsea tree development modelwell controlrisk quantitative evaluationrisk identification
spellingShingle Zhiming Yin
Meipeng Ren
Yingwen Ma
Xiangqian Yang
Deqiang Tian
Haiwei Wang
Chengcheng Xiao
Jingyu Qu
Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees
Journal of Marine Science and Engineering
shallow-water subsea tree development model
well control
risk quantitative evaluation
risk identification
title Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees
title_full Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees
title_fullStr Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees
title_full_unstemmed Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees
title_short Research on the Risk of Drilling Phases Based on the Development Model of Shallow-Water Subsea Trees
title_sort research on the risk of drilling phases based on the development model of shallow water subsea trees
topic shallow-water subsea tree development model
well control
risk quantitative evaluation
risk identification
url https://www.mdpi.com/2077-1312/12/11/1909
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