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Keywords: riser
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Proceedings Papers

Proc. ASME. OMAE2021, Volume 2: Structures, Safety, and Reliability, V002T02A008, June 21–30, 2021
Paper No: OMAE2021-62568
... Proceedings of the ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering OMAE2021 June 21-30, 2021, Virtual, Online OMAE2021-62568 BILINEAR FATIGUE PERFORMANCE OF COMPOSITE MARINE RISERS IN DEEP OFFSHORE FIELDS DUE TO VORTEX INDUCED VIBRATIONS Rizwan Ahmad Khan Suhail...
Proceedings Papers

Proc. ASME. OMAE2020, Volume 2A: Structures, Safety, and Reliability, V02AT02A032, August 3–7, 2020
Paper No: OMAE2020-18127
...) properties, and high erosion resistance. As a part of design procedure there are requirements of mechanical strength based on criteria referring to failure modes, such as rupture by over loading, fatigue failures, buckling or an unstable fracture. Three dimensional nonlinear assessment of riser is carried...
Proceedings Papers

Proc. ASME. OMAE2020, Volume 3: Materials Technology, V003T03A011, August 3–7, 2020
Paper No: OMAE2020-18953
... to 1.85 GPa. The relaxations observed by Dynamic Mechanical Analysis (DMA) indicate that a morphological change took place at annealing process, which led to a stiffness rises of amorphous phase. PVDF riser crystallinity relaxation modulus EFFECT OF ANNEALING TEMPERATURE ON PHYSICAL FEATURES...
Proceedings Papers

Proc. ASME. OMAE2020, Volume 4: Pipelines, Risers, and Subsea Systems, V004T04A052, August 3–7, 2020
Paper No: OMAE2020-18322
... vessels and larger BOPs. The objective of the paper is to present challenges that occur during drilling in shallow water and discuss mitigation options to make these operations feasible through a series of case studies. Key challenges to optimizing riser operability and rig uptime are discussed...
Proceedings Papers

Proc. ASME. OMAE2020, Volume 11: Petroleum Technology, V011T11A033, August 3–7, 2020
Paper No: OMAE2020-18468
... and operational safety, as it serves as a link between well and riser in offshore oil wells. Wellheads, combined with the BOP and/or the Christmas Tree, act as the final barrier element preventing leakage of oil from the well into the environment. The wellhead must sustain loads from the casings, which are hung...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 1: Offshore Technology; Offshore Geotechnics, V001T01A021, June 9–14, 2019
Paper No: OMAE2019-96588
...LAZY WAVE RISER DESIGN IN HIGH CURRENT AND MILD SOUR ENVIRONMENT Rupak Ghosh, Ph.D., P.E. ExxonMobil Production Company Houston, TX, USA Tyler J. Visco. ExxonMobil Production Company Houston, TX, USA Carlo Pellegrini Saipem America Houston, TX, USA ABSTRACT This paper presents an innovative design...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 9: Rodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium on Offshore Technology, V009T13A032, June 9–14, 2019
Paper No: OMAE2019-95204
...EVALUATION OF CONTACT FORCES IN THE VERTICAL CONNECTION OF A FLEXIBLE RISER IN THE SUBSEA EQUIPMENT Yuri Coelho Del Sarto Graduate Program Petroleum Science and Engineering University of Campinas Campinas-SP, Brazil Ricardo Franciss Faculty of Civil Engineering University of Petropolis Petropolis...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A048, June 9–14, 2019
Paper No: OMAE2019-96592
...FATIGUE ASSESSMENT OF SLWR RISER IN BRAZILIAN PRE-SALT: THE IMPACT OF SLOPE CHANGING POINT IN SN CURVE Stael F. Senra1 PETROBRAS Subsea Engineering Rio de Janeiro, Brazil Ludimar L. Aguiar, Eduardo Hippert Jr., Alexandre G. Garmbis, Marcelo Dos Santos, Marcos André D. Martins, Luis Manoel P. Nunes...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A039, June 9–14, 2019
Paper No: OMAE2019-96156
...IMPACT OF SOIL MODELING ON FATIGUE DESIGN OF LAZY WAVE RISER SYSTEMS Rupak Ghosh, Ph.D., P.E. ExxonMobil Production Company Houston, TX, USA Haydar Arslan, Ph.D. ExxonMobil Production Company Houston, TX, USA ABSTRACT The Liza risers comprise production risers, water injection risers and gas...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 5A: Pipelines, Risers, and Subsea Systems, V05AT04A033, June 9–14, 2019
Paper No: OMAE2019-96597
... condition raise the pressure on the connector; therefore, this pressure should be endured by a segment which is the carcass. Carcass holder and installation rings are components of the connectors in termination of the carcass layer. This paper assesses the role of the carcass in a sealing system of riser...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 5A: Pipelines, Risers, and Subsea Systems, V05AT04A019, June 9–14, 2019
Paper No: OMAE2019-95826
...Abstract Abstract The flexible riser top connection to the floating production platform is a critical region for fatigue lifetime (re)assessment. The interface with the I-tube and its curved sleeve combined with the gap between the riser and bend stiffener may lead to different curvature...
Proceedings Papers

Proc. ASME. OMAE2013, Volume 2B: Structures, Safety and Reliability, V02BT02A016, June 9–14, 2013
Paper No: OMAE2013-11019
... Inspection of deepwater risers for flaws or pits using ILI tools can be challenging. Some lines are designed as “non-piggable”, and it is not unusual for an inspection to be incomplete because of physical constraints. As with any measurement, there will be a degree of error. While deterministic...
Proceedings Papers

Proc. ASME. OMAE2013, Volume 4B: Pipeline and Riser Technology, V04BT04A018, June 9–14, 2013
Paper No: OMAE2013-11015
... When risers are designed it is common for corrosion to be accounted for by including a corrosion allowance in the wall thickness [3]. However, when designing risers which are subject to fatigue loading from various sources, simply allowing extra thickness in the wall is inadequate to protect...
Proceedings Papers

Proc. ASME. OMAE2011, Volume 4: Pipeline and Riser Technology, 101-109, June 19–24, 2011
Paper No: OMAE2011-49133
... of reaching new oil fields in increasingly water depths. In this scenario, not only new types of platforms are being designed, but also new types of flexible pipes and new umbilical cable configurations. The greatest difficulty to generate a new concept for a riser is to determine if it is viable...
Proceedings Papers

Proc. ASME. OMAE2011, Volume 4: Pipeline and Riser Technology, 361-366, June 19–24, 2011
Paper No: OMAE2011-49400
...1 Copyright © 2011 by ASME Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering OMAE2011 June 19-24, 2011, Rotterdam, The Netherlands OMAE2011- 49400 FLOWLINES AND RISERS PIPES ENDS LASER MEASUREMENT FOR ENHANCED GIRTH WELDS MANUFACTURING AND FATIGUE...
Proceedings Papers

Proc. ASME. OMAE2011, Volume 4: Pipeline and Riser Technology, 219-227, June 19–24, 2011
Paper No: OMAE2011-49251
... 1 Copyright © 2011 by ASME ON DYNAMIC COMPRESSION OF RISERS: AN ANALYTICAL EXPRESSION FOR THE SPEED OF COMPRESSION WAVES ABSTRACT Several aspects of risers dynamics still demand extensive researches as to improve the understanding about physical phenomena involved, so check the adequacy among...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 313-323, June 6–11, 2010
Paper No: OMAE2010-21131
... 10 01 2011 ExxonMobil Upstream Research Company (URC) conducted a pilot testing program to systematically assess the effect of reeling on the fatigue performance of welded risers. Given the criticality of deepwater risers, a robust reeling simulation method was developed. The method...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 2, 615-619, June 6–11, 2010
Paper No: OMAE2010-20830
... 10 01 2011 Riser has been and will be an important part of the offshore production system. Due to the complexity of environment, reliability evaluation is needed for the riser system to ensure the safety and durability. The analysis of the failure modes of riser system was studied...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B, 429-438, June 6–11, 2010
Paper No: OMAE2010-20379
... 11 01 2011 The offshore industry is in constant evolution due to the need of reach increasing water depths for new oil fields exploitation. In this scenario, not only new types of platforms are being designed, but also new types of risers, including flexible pipes and new umbilical...
Proceedings Papers

Proc. ASME. OMAE2007, Volume 1: Offshore Technology; Special Symposium on Ocean Measurements and Their Influence on Design, 49-54, June 10–15, 2007
Paper No: OMAE2007-29072
... 22 05 2009 Platform drilling has been effectively employed for several Spar applications in the Gulf of Mexico (GOM). As the drilling day rates surge in the recent market, this option becomes more attractive and has been increasingly considered by operators. The Spar drilling riser has...