1 1 MARINTEK MARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen Trondheim Marine Technology Centre in Trondheim Oslo Bergen Houston MARINTEK (USA), Inc. MARINTEK Norwegian Marine Technology Research Institute Main office in Trondheim Offices in Oslo and Bergen Subsidiary in Houston; MARINTEK (USA), Inc. Office in Rio de Janeiro; MARINTEK do Brasil MARINTEK do Brasil - Opening Seminar 19th April 2007, Rio de Janeiro Advances in Design, Installation and Operation Analysis of Offshore Pipelines Egil Giertsen, MARINTEK 2 MARINTEK MARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen Presentation Outline Background Offshore pipeline R&D projects The Ormen Lange gas field SIMLA development strategy SIMLA analysis functionality - highlights Examples from the Ormen Lange project Use in the oil and gas industry Plans
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Advances in Design-Installation-Operation Analysis of ... · PDF fileState of the art before PIPESTAB: Dnv 1981 Rules for Submarine Pipeline Systems => High concrete coating costs
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1MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
Trondheim
Marine Technology Centre in Trondheim
OsloBergen
Houston
MARINTEK (USA), Inc.MARINTEKNorwegian Marine Technology Research Institute
Main office in TrondheimOffices in Oslo and BergenSubsidiary in Houston; MARINTEK (USA), Inc.Office in Rio de Janeiro; MARINTEK do Brasil
MARINTEK do Brasil - Opening Seminar19th April 2007, Rio de Janeiro
Advances in Design, Installation and OperationAnalysis of Offshore Pipelines
Egil Giertsen, MARINTEK
2MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
Presentation OutlineBackground
Offshore pipeline R&D projectsThe Ormen Lange gas field
SIMLA development strategy
SIMLA analysis functionality - highlightsExamples from the Ormen Lange project
Use in the oil and gas industry
Plans
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3MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
Objectives:Reliability based design of Submarine PipelinesState of the art before SUPERB: DnV 1981 Rules for Submarine Pipeline Systems⇒ High steel costs
Outcome:Code calibration resulted in increased utilization (0.72 -> 0.80)Reduced wall thickness => Cost savingsDnV Offshore Standard F101 (DnV 1996)
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5MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
DEEPIPE JIP (1996-1999)Executive partners: MARINTEK, JP Kenny and DNV
Objectives:Develop a pipe-soil interaction model suitable for detailed analysis of TDP effects for catenary risersVerify the numerical model by 2D geotechnical small-scale tests (performed at NGI)Validate the model by back-calculation of monitored in-situ full scale test data
Outcome:A numerical pipe-soil interaction model applicable for on-bottom pipeline stability and TDP effects for catenary risersMore accurate prediction of fatigue life and extreme stresses
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7MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
INT-STAB JIP (2003-2006)Executive partners: DNV, MARINTEK and DHI
Sponsors: Statoil, Norsk Hydro, Woodside, PRCI
Objectives:A Recommended Practice for On-bottom Stability Design (replacing DNV RP E305)Up-to-date know-how with respect to sediment transportA new PONDUS database for clay type soilA completely revised version of the PIPE software for on-bottom stability analysis
Outcome:DNV RP F109 (currently on external hearing)New PIPE version v3.02
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Sponsors: Petrobras, Norsk Hydro, BP, Shell, Nexans
Objectives:Development of next-generation software tools for stress and fatigue analysis of umbilicalsVerification and validation by full-scale testingCase studies
Outcome:The UFLEX Program SystemLaboratory test resultsCase study reports
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11MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
FLEXIBLE RISER DESIGN FORMAT JIP (2003-2007)
Executive partners: MARINTEK
Sponsors: Petrobras, Statoil, BP, Wellstream
Objectives:Enhanced Fatigue Design Formats for Flexible Risers
Establish refined statistical models of relevant parameters Perform additional case studiesDevelop simplified case-based procedureEvaluation and categorization of safety factors
Outcome:Guideline on case specific fatigue design factorsMeasurements and analysis results from field test data, full-scale laboratory tests and small-scale testsCase study reports
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Ormen Lange –location
StoreggaSlide edge
StjTrondheim
KristiansundMolde
Alesund
PL208
Ormen Lange – Location
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13MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
Ormen Lange, concept selected 2002
Storegga Slide Edge
Nyhamna
Langeled to UK
Template A
Template B
Control Umbilicalsand MEG Lines
-250m
-850m
2 x 30” Import Pipelines (ca. 120 km)
2 x 6⅝” MEG Lines (ca. 120 km)
2 x Umbilicals (ca. 120 km)
1 x 6⅝” Infield MEG Line (ca. 3 km)
1 x Infield Umbilical (ca. 3 km)
1 x 42” Export Pipeline (ca. 1 200 km)
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N
Vertical exaggeration = 2.5X
KP 98
KP 121.7
TEMPLATE B
TEMPLATE A
KP 102
KP 105
KP 114
KP 118
umb umb6” 6” 30” 30”
Ormen Lange … the ultimate challenge for offshore pipe laying
• Extreme seabed topography
• Large water depth• Strong current• Low temperature
Water depth = 850 m
Water depth = 250 m
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15MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
SIMLAa special purpose computer tool for engineering analysis ofoffshore pipelines during design, installation and operation
Nonlinear 3D FEM static and dynamic analysisSimulation of pipe layingEvaluation of laying stabilityUpheaval buckling and snaking analysisInspection and evaluation offree spansTraining and familiarizationRoute planning and optimalizationSeabed interventionsPrediction of vessel positionOperator guidance
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Development Strategy
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Technology Development PhilosophyZG
YG
XG
1
2
X2L
Z2L
Y2L
X1L
Z1L
Y1L θ
[S1xx, E1xx, …]
θ
[S2xx, E2xx, …]
World-class Special PurposeNumerical Methods
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World-class 3D Visualization
Technology Development Philosophy
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Defining the 3D numerical route corridor (1)
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Defining the 3D numerical route corridor (2)
Z´
Z´
Y´Y´
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Use in The Oil and Gas Industry
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29MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
SIMLA in Ormen Lange
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OLFP - Major Offshore ContractsPipeline detail engineeringReinertsen
EPC Subsea systemFKS
Shallow water installation30” & 42”Allseas
Coating (weight and corrosion)Bredero Shaw
SurveyGeoconsult
Rock installationVan Oord ACZ
MEG installationAcergy
Deep water installation30” & tie-inSaipem
Umbilical productionNexans
Umbilical installationSubsea 7
Heavy liftHeerema
DredgingNexans
Contractors using SIMLA Contractors with SIMLA installed
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Installation Analysis of Umbilical - Static
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Installation Analysis of Umbilical - Dynamic
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33MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
Use of the SIMLA Program System in the Ormen Lange field project has been - and is - a success
CommunicationPartnersMedia
FamilarizationProject teamContractors
Design and constructionVerification and validation (specialist analysis)Interface meetings with contractorsCompany representative on board lay vessels
A 3D visual model of the complete field layout has grown as the project has moved forward, and is now believed to be used also during operation
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The Pluto Field - Overview
Woodside Energy Ltd
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35MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
Planned Development Solution
Woodside Energy Ltd
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The Seabed at The Deepwater Area
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37MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
The MEDGAZ Project (www.medgaz.com)
Capacity: 8 billion m3/yearLength: 200 kmDiameter: 24 inchesMaximum WD: 2,160 metersInvestment: € 900 millionWorkforce: Over 2,000 people will be involved in the
construction phase
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What now…
Photo: Geir Endal
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39MARINTEKMARINTEK do Brasil / Opening Seminar 19th April 2007 / Giertsen
SIMLA.INSTALLATION
On board monitoring, analysis and decisionsupport during offshore pipe lay operation
Status: DEMO’2000 Application (2007-02-21)
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SIMLA.Installation - Main Objectives1. Generate, collect and store calculated key installation
parameters from a selected set of design analyses (as designed datasets)
2. Generate, collect and store an equivalent set of key installation parameters from available on board control and monitoring systems (as installed datasets)
3. Create an on board decision support system by combining as designed datasets with real-time information
4. Calculate accumulated fatigue damage due to the installation, from the as designed and/or as installeddatasets, as a function of pipeline route position
5. Apply as installed information as start-up condition forre-assessment analysis during operation
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SIMLA.Installation - PotentialOn board 3D FEM analysis real-time, to support decisions related to specific events or emerging situations (bad weather + curves)Evaluation of laying stability, both for the current position and as forecast for the next section of the as-designed pipe routeGeneration of the As-built deliverable in a direct reusable form, also including key parameters from real-time 3D FEM analysisConnect via satellite link from onshore control rooms, and view the whole operation, including 3D FEM results, positions of supporting vessels, ROV’s, etcFor familiarization/HAZID/HAZOP, produce a complete 3D scenario (including 3D FEM results, laying stability evaluation, etc) of the installation process prior to the actual offshore operationFor de-briefing, play back the installation process from the As-built logBased on the As-built log, calculate the accumulated fatigue damage due to installation, store it as a function of pipe route position and apply it as startup condition for fatigue assessment of critical areas during operationAssessment of on-bottom stability during operationAssessment of upheaval buckling and snaking during operation
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On board monitoring, analysis and decisionsupport during offshore pipe lay operation
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