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Keywords: subsea tree
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30564-MS
... West of Shetland, BP North Sea discovered they had a problem with subsea tree mounted pressure and temperature sensors that whilst dual redundant, still completely failed over time. The measurements are required by the local regulatory body to comply with monitoring of asset integrity...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28828-MS
... pumps driven by variable-speed motors for accurate positioning. This paper presents the results of the development of an electro-mechanical actuator with hydrostatic drive to operate gate valves of subsea trees and manifolds. The main achievements, demonstrated by simulation and testing using a 2...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28677-MS
... a challenge for a traditional vertical in-plane jumper. A study was completed to compare a few traditional approaches. The options considered were a 50-meter-long jumper able to reach from existing manifold to the new subsea tree a tie-in skid with a flow loop supported by a mud mat and two...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27589-MS
... for the problem experienced with the safety valve installed on Oyo-8 which has a single rod piston and a single control line. The options for restoring safety valve functionality included the following: i. Attempt to function the safety valve directly at the subsea tree by pressuring up via an ROV intervention...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25970-MS
... subsea tree subsea system strategic planning and management project management bnw project contractor fabrication yard snepco certificate Gilbert , R. , Jenkins B. 2014 . Shell: Building Capacity in Offshore Deep-water Oil Production to Support Economic Diversification...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25773-MS
... related to subsea trees, control systems, subsea manifolds, diverless connection systems, subsea flowlines, umbilicals and risers for the production systems are presented, as well as the flow assurance issues. The risers and pipelines for produced gas flow to shore are also covered. Considering the large...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25790-MS
... in delivering NC on the project and how they were addressed. The key lessons learnt and opportunities for improving NC delivery will also be covered. compliance subsea system contractor ncdmb nigeria upgrade subsea tree nogicd act stakeholder certificate project management fabrication yard...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20649-MS
... lift spacer templates and is ongoing at the time of the writing of this paper (Q4-2009). manifold alm upstream oil & gas operation esp completion string subsea system subsea production equipment mobo top-end assembly spacer spool conductor subsea tree installation mobo offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20495-MS
... as subsea trees. Some of the equipment deployed from the Azurite FDPSO included: subsea trees, flexible well jumpers, steel tube flying leads and electrical flying leads. well jumper subsea system subsea construction vessel subsea equipment flowline subsea production equipment construction...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20108-MS
... Abstract This paper reviews the role of subsea well systems in the light of advances in broader subsea systems technology. This will facilitate a better understanding of the changing role of subsea trees in particular, and how they may still exert significant influence on the performance...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19622-MS
... platform in East Cameron block 373. The planning schedules are shown in Tables 1 and 2. subsea tree offshore technology conference completion equipment completion installation and operations completion spreader bar otc 19622 intelligent completion rig petrobras america assembly...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19552-MS
... 19552 pressure differential control system subsea tree well intervention production enhancement valve light well intervention downtime downhole intervention completion equipment completion installation and operations OTC 19552 Well Intervention in Deep Waters Erling Mathiassen, Per...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18949-MS
... upstream oil & gas remediation of hydrates flow assurance eastside flowline asphaltene inhibition offshore technology conference riser cold startup cooldown performance field data scale inhibition oilfield chemistry effectiveness production chemistry subsea tree bonga startup paraffin...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2006
Paper Number: OTC-17972-MS
... hydrate formation upstream oil & gas flow assurance subsea system thermal insulation production equipment operation subsea equipment injection offshore technology conference insulation material subsea tree insulation procedure otc 17972 thermal design elastomer field...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16228-MS
... was driven by a requirement to achieve first oil in late 2003. valve completion operation subsea tree offshore technology conference frac pack bop stack packer completion installation and operations otc 16228 rig assembly downhole completion barrier completion design icv production...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16533-MS
... Abstract Recycling of subsea trees and completion equipment is becoming a practical and efficient means of developing small subsea reservoirs that were previously considered not economical. However, there are concerns and tradeoffs that an operator may be faced with when developing a solution...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16507-MS
... and production operations1. Complex geometries, such as subsea trees and associated piping, well-to-manifold jumper lines, manifolds, manifold-to-sled jumpers, flow line termination sleds require unique approaches to analysis, design, and location of insulation for hydrate prevention during cool down...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16574-MS
... the technologies required to install the first Floating Production Unit for the Marlim field. enhanced recovery field development optimization and planning waterflooding reservoir houston installation operation development plan subsea tree injection manifold upstream oil & gas subsea system...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16531-MS
... and financial expectations. The Zia project achieved first oil in June 2003, just 18 months from commencing the development concept selection process and 12 months from project sanction. The Zia team attributed this success to a compressed process where criticalpath subsea hardware including subsea tree...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15142-MS
... and subsea trees for the Na Kika project in water depths up to 7,300 fwd, as well as for several other projects in shallower depths. Cost savings over conventional installations utilizing a drilling rig or other heavy lift vessel have approached 50%. Opportunities for use of this technology to install other...

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