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Keywords: wellhead
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35594-MS
... and uncertainty assessment risk management wellbore integrity ml well assessment risk assessment qualitative risk assessment passive monitoring system beacon risk management and monitoring strategy wellhead enhancing subsea asset integrity leak offshore technology conference risk assessment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35650-MS
... Abstract Hydraulic tree connectors can be vulnerable to hydraulic failures. This paper describes a newly developed tree connector mechanical running tool (TCMRT) that is designed to mechanically perform locking and/or unlocking of a hydraulic tree connector to the wellhead to significantly...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35491-MS
... of a deepwater project. This project used the Dril-Quip 20,000 (20k) psi rated BB IIe subsea wellhead system with DXe mandrel profile and gasket, and a Badger casing connector. This paper describes the fatigue assessment and fatigue resistance design of the 20k rated BB IIe wellhead system and the fatigue...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35321-MS
... such as methanol injection from the wellhead. However, given that methanol could not reach the depth at which the blockage(s) were formed, a Hydrate Remediation Skid (HRS) was hired from the relevant contractors, adequate system isolations were made and depressurization carried out which eventually removed...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32487-MS
... Abstract We present a semi-analytical method to analyze the multi-string mechanical response of the tubulars, the wellhead and the mudline hangers (MLH) in offshore wells with a mudline suspension system (MLS). The MLS introduces redundancies at the MLH shoulders. In our method, the tubulars...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32608-MS
... Abstract With the offshore drilling industry desiring ever increasing structural performance, this inherently suggests a move to larger wellhead mandrels. The Wellhead System presented in this paper provides an alternative approach. This program optimized existing wellhead solutions, maximized...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31033-MS
... Abstract On conventional vertical trees (VXTs) with a tubing hanger (TH) in the wellhead (WH), orientation of the VXT to the TH system is a complicated and expensive process. Leveraging patented technology, the tree to hanger orientation ring (THOR) and tooling were implemented to save CAPEX...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31047-MS
... Abstract Subsea wellhead systems have a design fatigue life that is expected to withstand the damage incurred from stress caused by cyclic loading during its operation. Wellhead fatigue is a critical factor when drilling offshore wells because the condition of the wellhead determines the length...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30519-MS
.... These challenges included wellhead interfaces capable of handling the stack-up tolerances of casing hangers, and a need to orient the tubing hanger relative to a flowline connection system. The solution utilized by most conventional systems was the incorporation of a tubing head spool or some other elaborate means...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30765-MS
..., single trip (MOST) tool system. Along with recovering the subsea wellhead, the associated casing strings and conductor were to be cut and retrieved. The standard MOST tool is a field-proven system, which latches externally to the wellhead, then cuts and recovers subsea wellheads. The newly released...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30910-MS
... Intervention Systems (Light Interventions) This type has a surface BOP (Coil tubing and/or wireline) with a subsea well control package (WCP) on top of the tree/wellhead connected via a riser. WCP consists of an Emergency Disconnect Package (EDP) and a Lower Riser Package (LRP). The EDP/LRP is a system...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30538-MS
... in the field in Saudi Arabia in collaboration with our EXPEC ARC and Northern Area Production Engineering and Well Services Divisions in Saudi Arabia. wellhead acoustic pinger microcontroller magnet well logging upstream oil & gas operation platform wireless charging offshore technology...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29461-MS
... scenario contingency planning modeling & simulation wellhead onshore case leakage rate blowout well control operational safety upstream oil & gas leakage pipe seawater onshore fluid dynamics annular pressure drilling saturation References References Corey , A.T...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29561-MS
... to improve operational efficiency and increase safety under given challenging conditions. The paper also addresses a full scale wellhead testing in order to verify the design for fatigue performance. Several novel technologies were qualified and implemented as part of the Aasta Hansteen Subsea Production...

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