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Keywords: weld
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35120-MS
... and friction welds in accordance with ANSI/NACE MR0175andNACE TM0177. Sub-scale fatigue testing was performed to determine the environmental knockdown factor and used to determine the fatigue capacity of the DPBR in the expected fluid/environmental conditions. Finite-element analysis was used to determine...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30873-MS
... in introducing new pipeline technology – in particular, the world`s first use of remote-controlled and diver-less hyperbaric welding of the ‘’36 oil export pipeline to the Johan Sverdrup riser platform. The paper also discusses how the project benefited from further industrialization of the hot-tapping...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30748-MS
... techniques for all datasets offers valuable insight into riser and wellhead response characterization and safe drilling operations. assessment riser international conference dataset houston soil model arctic engineering fatigue assessment wellhead fatigue response assessment weld analysis...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30579-MS
... wellbore integrity platform failure inspection interval weld inspection plan platform design steel offshore platform underwater inspection management system wellbore design B. Lanquetin , Floating Units Integrity Management and Life Cycle Enhancement , SPE Paper 96385 , 2005...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29592-MS
... are deployed. This assessment should be carefully conducted the selected approach will impact procurement and installation costs. For instance, increasing the pipe wall thickness to cope with corrosion would results in higher lay vessel installation capabilities as well as longer welding time while relying...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-29019-MS
... Abstract Swaged pipe in pipe construction has been increasingly used for offshore pipeline system. Double joint pieces of swaged pipe-in-pipe are typically welded together on a J-lay/S-lay vessel. The swaged end joint is fabricated through a cold deformation process to the outer pipe...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27568-MS
..., management of challenges, and lessons learned. The chain of supply (pipe, machining, coating, welding, and fatigue testing) involved several suppliers across several countries posing another challenge. fatigue life special tdz section procedure upstream oil & gas coating pipe 120ft-long...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27548-MS
... Abstract We produce good quality, high strength, and sour resistant steel, but industry confidence in offshore welds to 65 Ksi and conservative codes lead to very thick pipes for all HPHT risers (SCR, Dry tree, drilling) and flowlines. Cumulative adverse effects of very thick and low D/t ratio...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27168-MS
... upstream oil & gas piping design scr aut system piping simulation fabrication inspection flowline procedure welding solution requirement acceptance criterion fabrication campaign programme defect residual magnetism flaw spoolbase installation indication pipe weld...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25792-MS
... Pressure & High Temperature applications. In order to meet tight Hi-Lo requirements together with high fatigue performances, innovative Pipe End Design and associated automatic welding procedures were developed and qualified. The paper describes the complete sequence of pipe manufacturing process, from hot...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25884-MS
... Abstract Super duplex stainless steel (SDSS) tube is a main component in steel tube umbilicals to convey hydraulic fluids, chemicals or to control the flow of gas into subsea wells. Butt welds are used in the umbilical tube manufacturing for all tube joints and their quality directly impacts...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25839-MS
... coupled solutions. Fabrication is also addressed to highlight main challenges associated to assembling and welding clad and lined pipelines. In this paper the key aspects of the design and qualification are presented. Due to sour and CO2 service requirements for the production and water injection risers...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25229-MS
... life for the in-place conditions. weld in-place condition stress concentration factor calculation sn curve compressive stress butt weld upstream oil & gas fatigue life penetration subsea system offshore technology conference scf pile capacity pile section wall thickness...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25217-MS
.... In addition, upset ends for the SCR touchdown area were needed to meet the fatigue life requirements. Clad pipe production, CRA welding of 40 mm thick pipe and Automated Ultrasonic Testing (AUT) inspection of such girth welds has not been done previously in either pipeline or riser applications...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-23973-MS
... Abstract In typical insulated Pipe-in-pipe (PIP) systems, both extremities of the outer jacket pipe are swaged down close to the inner pipe and are welded directly to the outer surface of the inner pipe. This full penetration weld (hereafter called swaged weld) works as a structure connection...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24077-MS
... the vessel, but with flush welded half shells to avoid diameter changes. The outer pipe is typically swaged down close to the inner pipe and welded directly to outer surface of inner pipe between stalks. This full penetration weld (hereafter called swaged weld) works as a structural connection between...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24016-MS
... of OTC-24016-MS mudline conductor connector drilling operation otc 24016 criteria weld casing and cementing cx-15 platform buoyant tower upstream oil & gas casing design production wayne mueller wellhead crossover platform operation drilling equipment rig conductor guide...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23096-MS
... was specifically carried-out using high quality mechanically lined pipemanufactured by the hydraulic expansion process. girth weld piping simulation materials and corrosion installation piping design steel examination fatigue testing pipeline corrosion corrosion management internal pressure...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23464-MS
... projects, there were limited number of qualifiedvendors and technologies to be used for automated ultrasonic testing (AUT)inspection of carbon steel riser welds. Due to the strict performancerequirements of the welds in riser applications, the allowable defect sizes arevery small when compared to pipeline...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23704-MS
... to standards API-RP-2RD [1], API-RP-1111[2], and DnV RP-F109 [3]. different vessel configuration otc 23704 shr scj configuration fatigue life weld sag bend scj gas injection scj injection riser upstream oil & gas scf 1 steel catenary jumper injection scj shr wall thickness...

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