Design and Research on Cutting and Retrieving Tool of Deepwater Subsea Wellhead System
Shiyou jixie, 2016 In accordance with the need of deep water production, this paper analyzed the existing cutting tool’s structure and working principle, and developed the lift-draw type cutting and retrieving tool of deepwater subsea wellhead system.The paper also ...
Chen Yao, Qin Haozhi, Tan Shuai
doaj
Sealing Characteristics Analysis of New Subsea Wellhead Sealing Device
Subsea wellhead systems are the crucial equipment for the development of oil and gas resources offshore, while the sealing device plays a vital role as the main component of the wellhead system.
Jing Li +6 more
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Performance Analysis of Subsea Wellhead Connector Sealing Structure
Shiyou jixie, 2016 The subsea wellhead connector is applied in a complex operation condition and environment during production.The wellhead connector gasket ring sealing performance under installation preload condition and production condition has been analyzed by finite ...
Tang Wenxian +4 more
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Influence Rules of Temperature Effect and Annular Conditions on Wellhead Uplift
Shiyou jixie, 2020 In order to predict the wellhead uplift in deep-water high temperature well production, uplift prediction models for single-layer free casing and multilayer casing coupling wellhead system under different temperature rise conditions.
Xie Renjun +4 more
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Development of Surface Support Placement and Recovery System for Deep-sea Mining Dredgers
Shiyou jixie, 2022 In order to realize the safe and efficient placement and recovery of deep-sea mining equipment,a set of mining dredger surface support placement and recovery system was developed.It is applicable for water depth of 3 000 m and the maximum lifting ...
Wang Anyi +4 more
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Dynamic Stability Analysis of Deepwater Subsea Wellhead
Shiyou jixieDeepwater subsea wellheads are subjected to long-term complex dynamic loads， including marine environmental loads， platform motions， and riser vibrations. Their dynamic stability is crucial to ensuring deepwater drilling safety.
Zhang Heng +5 more
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Wellhead Tieback Technology for Shallow Sea Well under Integrated Exploration-development Strategy
Shiyou jixie, 2018 According to relevant laws and regulations, at the end of well life, the exploratory well will either be permanently abandoned or temporary abandoned. The permanent abandonment requirement is stricter than the temporary abandonment.
Huo Hongbo +6 more
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Research on Influencing Factors of Contact Stress of Seal Assembly Inner Flange
Shiyou jixie, 2020 To study the change law of the contact stress between the seal assembly of the subsea wellhead system and the outer wall of the casing hanger, the inner flange of the sealing body is taken as the research object.
Sun Baobao +3 more
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Impact of wellbore fluid properties on trapped annular pressure in deepwater wells
Petroleum Exploration and Development, 2016 To reduce the threat of trapped annular pressure on deepwater wells safe production, this study established a model of calculating trapped annular pressure, examined the influence of wellbore fluid properties on trapped annular pressure, and analyzed the
Bo ZHANG +4 more
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Stabilizing Slug Control Using Subsea Choke Valve [PDF]
, 2012 This thesis study the possibility of riser slugging control in oshore oil productionusing a subsea choke valve. A 5-state simplied model of a well-pipelinerisersystem is introduced and tted to a reference model in the ow simulatorOLGA.
Lieungh, Mats
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