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Keywords: wellhead
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30862-MS
... strain sensor increase service life install strain sensor subsea bop flange neck conservatism straight pipe upstream oil & gas controls and umbilicals drilling equipment wellhead subsea system sensor kit offshore technology conference sensor monitoring axial strain average...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30910-MS
... sequence operation higher temperature environment innovative feature wellhead offshore technology conference disconnect Presentation of OTC-30910-MS Presentation of OTC-30910-MS OTC-30910-MS Innovative Features Added to the Subsea Control System, to Enable a Safer Execution of the...
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-30519-MS
... Wellhead and Christmas Tree Equipment. ANSI/API Specification 17D, Second Edition, May 2011: Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment. Abstract The oil and gas industry continues to face low energy prices, which has pushed manufacturers to re...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30538-MS
... ideas that was successfully engineered and tested in our facility and successfully deployed and retrieved 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...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29561-MS
... more, in order 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...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29620-MS
... has continued the conservative, step-wise advances that have characterized the history of the subsea drilling and well control industry. This paper uses as an example the recent project developing a new 20,000 psi/350F capping stack. verification analysis wellhead connector well containment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29461-MS
... into the water column for the offshore case. By simulating the same well in onshore and offshore cases, we can compare the differences arising from the different wellhead pressure for onshore versus offshore wells. The purpose of our modeling is to understand dynamic multi- phase non-isothermal flow...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28855-MS
... expenditure projects with multiple interfaces often spanning several entities, including the Operator, Engineering Procurement and Integration Contractor (EPIC), Rig Builder, Production and Drilling Top-Tensioned Riser (TTR) supplier, Subsea Wellhead supplier, and Surface Wellhead/Tree supplier. Design and...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28932-MS
... allowing accurate prediction of well head movement, post-cyclic axial capacity of the structural casings, and oscillation and distribution of axial force along the structural casings during cyclic thermal loading. The predicted wellhead movement with thermal cycles is found to be consistent to the field...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28624-MS
... dry tree system has many other sealing surfaces and connections subject to HPHT loads at the surface and subsea wellhead locations, each of which presents their own design and qualification challenges. flexible jumper pipe surface wellhead wellhead requirement application stress joint...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28677-MS
... a mud mat and two approximately 25-meter-long jumpers a tie-in skid with a flow loop supported by the abandoned wellhead from the replaced tree a step-over jumper (SOJ) supported by a suction pile a SOJ supported by the abandoned wellhead. Evaluation concluded that the last option was the most...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27562-MS
...OTC-27562-MS Wellhead Fatigue Monitoring During Subsea Well Plug and Abandonment Activities Scot McNeill, Puneet Agarwal, and Kenneth Bhalla, Stress Engineering Services; Michael Ge and Jay Leonard, BP Copyright 2017, Offshore Technology Conference This paper was prepared for presentation at the...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27555-MS
...OTC-27555-MS Time-Domain Research on Integrated Coupling Model of MODU, Drilling Riser and Wellhead Sheng Leixiang, Xu Liangbin, Zhou Jianliang, and Zhao Jingrui, CNOOC Research Institute Copyright 2017, Offshore Technology Conference This paper was prepared for presentation at the Offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27584-MS
... Awareness of the challenge with lower available Wellhead fatigue life has increased as the Oil and gas industry has gained more knowledge through advanced analysis and tests. Loads on Wellhead are influenced by movements from drilling rig transferred through Marine Riser and BOP. These loads...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27602-MS
... Det Norske Veritas Report, 2014-0783 , NORSOK U001 Well System loads, September , 2014 Det Norske Veritas Report, 2011-0063 , Wellhead Fatigue Analysis Method, January , 2011 NORSOK Specification U-001 Rev. 04 , Subsea Production Systems, October 2015 Det Norske...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27726-MS
... [1] and [2] the magnitude of the wellhead bending load is given by the following factors: 2 OTC-27726-MS 1. The height of the BOP stack: As the height of the BOP increases, the moment arm for the shear force acting at the top of the BOP will increase. An increase of the moment arm will hence increase...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27754-MS
... LC Sevillano et. al . , Subsea Wellhead Fatigue Analysis with Focus on Thermal Conditions , 35th International Conference on Ocean, Offshore and Arctic Engineering , CD-ROM: OMAE2016-54088 , Busan, South Korea , 2016a . LC Sevillano et. al . , Thermal Effects on Subsea Wellhead...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27808-MS
... Fatigue damage predictions of risers and wellhead/casing systems due to drilling operations require predictive modeling techniques for load calculation/estimation. This work attempts to address the uncertainty as to whether the global riser analyses are overly conservative due to model...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27886-MS
... annulus in real-time during the drilling, logging, and capping phases of a subsea well. The annulus monitoring system used off-the-shelf sensors to acquire pressure and temperature data in the casing annulus. The data was communicated from inside the casing annulus to the outside of the subsea wellhead...

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