19th Conference Proceeding
Optimisation of Soil Investigation for Enhanced Site-specific Assessment of Jack-Up Platforms using an Existing Database
H.K. Engin, C. Bilici, K.H. Andersen, H.P. Jostad, NGI
P.E. Gjerde, AkerBP
Comparing Preloading and Punch Through Behaviour of 3-VS 4-Legged Jackups
JoseH. Vazquez, Frank D.M. “Sandy” Strachan IV, P.E., 3Dent Technology – An Ocean Power Technologies Company; Antonio Vasco de Mello, Valentine Van De Putte, Jan de Nul Group
Improving Predictions of Spudcan Performance During Jack-Up Installations
Can Mollaibrahimoglu, Cameleer A.S.; Lottie Sharp, Vattenfall
Angelo van Tongeren, Jan De Nul; Okky Purwana, Geo Oceanics
Torsion Interaction in Tubulars in Offshore Structures and Jack-Ups
P.A. Frieze, PAFA Consulting Engineers, UK
Development in Extreme Metocean Loads and Assessment of Fixed Offshore Structures
R. Fraser, BP
Punch-through in the North Sea: a Comparison Among Different Analysis Methods
J. Gallacchi, S. Raymackers, Engineering Department, DEME Offshore, DEME Group, Belgium
Jack-Up Foundation Performance at the Unforeseen Punch Through Condition Location – A Case Study
P. Handidjaja, Sterling Technical Services Sdn Bhd, Malaysia
Dinh Quang Nhut, PV Drilling and Well Services Corporation
I’ll Drink to those Legs (paper, presentation)
John Stiff, Retired – Consultant
Dr Malcolm Sharples, Offshore Risk and Technology
Investigating Soil-plug Formation for a Spudcan Penetrating a Multi-layered Seabed: Analytical Methods & 2D Finite Element Analysis vs Field Observations
Ramtin Hosseini-Kamal, Mehmet Ilcioglu, Global Maritime
Can Mollaibrahimoglu, Caderler
Numerical Advancements in Jackup Foundation Simulations
Erick Kencana, Okky Purwana, Geo Oceanics
Hartono Wu, Singapore Institute of Technology
Dynamic Analysis of Jack-up Units in Soft Clay Overlying Sand
Yifa Wang, Mark J. Cassidy, Department of Infrastructure Engineering, Faculty of Engineering and Information, The University of Melbourne
Structural Reliability Analysis for Crane Operability Conditions of Offshore Wind Farm Jack-ups
Job Kramers, Joost Janssen, Hugo Hofstede, GustoMSC
Torfinn Hørte, Kevin Drake, DNV
Going-on-locaiton of Jack-ups: a Comprehensive Framework for Site-specific Assessment of Installation
G.F. Holland, S.M. Hoogeveen, CALYPSO
Seismic Risk Assessment and Mitigation for Wind Turbine Installation Jack-up: A Case Study
Steve Hau, DNV; Jonathan White, Ørsted; Ross Barford, Seajacks; Okky Purwana, Geo Oceanics
Hartono Wu, Singapore Institute of Technology
Seismic Simulation of Jack-up Foundation on Liquefiable Soils
(figures)
Angelo van Tongeren, Jan De Nul; Hugo Hofstede, GustoMSC
Mark Hayward, DNV; Okky Purwana, Geo Oceanics
J-REG Joint Industry Project – Technical Highlights
Alberto Morandi, GustoMSC
IOGP / ISO TC 67 / SC 7 / WG 7 for ISO 19905-series Site-specific Assessment of Mobile Offshore Units: Status Report
Mike Hoyle, Noble Denton Marine Services, Energy Systems
Compaction of Silty Sand due to Previous Jack-up Installations and Seabed Interventions to Avoid Critical Skirted Spudcan-footprint Interactions
M.R. Jensen, L. Kelley, F. Gobuzi, Geo, Copenhagen, Denmark
H. Stadsgaard, Noble, Copenhagen, Denmark
P.E. Gjerde, AkerBP, Stavanger, Norway
18th Conference Proceeding
Jack-up Renewable Energy Guidelines – Early Developments
James N. Brekke, Brekke Offshore Consulting, LLC
Joost W. Janssen, Alberto Morandi, GustoMSC
Pitch Damping Ratios of Jackups with Varying Deployed Leg Lengths
Barton D. Grasso, 3Dent Technology – An Ocean Power Technologies Company
Mason Melkowits, Valaris Limited
Jose H. Vazquez, 3Dent Technology – An Ocean Power Technologies Company
WTIV Touch-down Loads on Hard Seabeds
Ehsan Izadi, Geo-Wise BV, Belgium
Jose H. Vazquez, 3Dent Technology – An Ocean Power Technologies Company
Installing a Jackup in Swell Conditions with Responses almost Double the MOM Limits – A Case Study
Mason Melkowits, Valaris Limited
Jose H. Vazquez, 3Dent Technology – An Ocean Power Technologies Company
Site-specific Earthquake Analysis of a Wind Turbine Installation Jack-up (Figs. 5-7)
H. Hofstede, P. van Uchelen, GustoMSC
A. Amodio, S. Safinus, H. Krisdani, Norwegian Geotechnical Institute (NGI)
A.M. Kayla (former NGI), Norconsult
A. Wullf Wathne, Fred Olsen Windcarrier (FOWIC)
Qualitative Assessment of Uncertainties in Estimation and Modelling of Cylic Design Parameters, and the Consequences on Calculated Spudcan Foundation Capacity and Stiffnesses of Jack-up Platforms
H.K. Engin, K.H. Andersen, H.P. Jostad, Norwegian Geotechnical Institute (NGI)
Impact of Cylic Loading on Soil Behaviour / Jack-up Foundations Capacities & Need for Design / Constructions of Seabed Interventions
L. Kelley, Geo, Copenhagen, Denmark
P.E. Gjerde, AkerBP, Stavanger, Norway
Spudcan Design and Survey – Past, Present and Future
J.H. Rousseau, J. Preston, American Bureau of Shipping (ABS)
Eulerian Analysis of Jack-up Spudcan Foundation Performance
J.S. Templeton, III, SAGE USA, Inc.
Spudcan Penetration into Rock
J. Irvine, P. Stephenson, C. Jaeck, Cathie Group
An Investigation of Spudcan Performance in a Multi-Layered Soil Profile
L. Sharp, J. Morton, J. Osborne
Spudcan Penetration due to Scour: A Combined Hydrodynamic and Geotechnical Study
N. Vaghjiani, H. An, M.F. Bransby, S. Draper, University of Western Australia
M.F. Silva, Y. Xie, Fugro Australia Marine
Looking Back at Successful Jack-up Preloading Operation Managing and Applying Key Data
R. J. Hunt, Gorevega Ltd
JRC Code of Practice and Marine warranty Survey Scope of Work for Offshore Wind (Abstract)
John Munnings-Tomes, The Hartford
Daniel Stevens, AXIS Capital
David Watson, Canopius
Time-domain Dynamic Amplification (TDAF) Analysis with Linear Irregular Waves
J.E. Ottersen, L. Shang, DNV AS
Lifeboat Capsize in Transit
W.P. Stewart, Stewart Technology Associates
Jack-up Accident Statistics – Yet Another Update
R.L. Jack, M.J.R. Hoyle, DNV Noble Denton Marine Services
R.J. Hunt, Gorevega Ltd
IOGP / ISO TC 67 / SC 7 / WG 7 for ISO 19905 Site-specific Assessment of Mobile Offshore Units – Status Report
Mike Hoyle, Noble Denton Marine Services
17th Conference Proceeding
Spudcan Penetration Assessment with a Trapped Soil Plug
R.F. Overy, R.J. Hunt, Halliard Consulting
Modelling Rate-dependent Soil-Spudcan Interaction for Jack-up Preloading in Clay
S. Brinkman, G.A. Dantuma, Van Oord
J.A.D. Fila, Iv-Infra
F. Pisano, Delft University of Technology
Centrifuge Investigations of Reverse Fault Interaction with Jack-up Rig Spudcan Foundations
K.J. Oakes, M.J. Brown, J.A. Knappett, University of Dundee
I. Anastasopoulos, Institute for Geotechnical Engineering (IGT), ETH ZURICH
Seabed Remediation Avoiding Critical Spudcan-boulder Interaction during Jack-up Vessel Installations in Offshore Wind
L. Kelley, S.S. Sundararajan, K.H. Lundvig, Geo, Copenhagen, Denmark
Design of ‘High & Narrow’ Gravel Banks Applicable to Skirted Spudcans & Jack Installation Close to Jacket Structure
L. Kellezi, H. Stadsgaard, Geo & Maersk Drilling, Copenhagen, Denmark
Advanced Site-specific Analysis of Skirted Spudcans in the View of North Sea Experiences
H.K. Engin, H.P. Jostad, M. D’Ignazio, N. Sivasithamparam, H.D.V. Khoa, K.H. Andersen, J. Johansson, A. M. Kaynia, Ø. Torgersrud, Norwegian Geotechnical Institute (NGI)
G. Yetginer, EQUINOR
H. Hofstede, GustoMSC
Coding the Code: Applying ISO 19905-1:2016 as a Software Package for Site-specific Assessments
Mass Hoogeveen, Standard Offshore Consultants and Operators
Jack-up Foundation Analysis and Monitoring
Stuart Killbourn, Fugro GB Marine Ltd,UK
Jamie Hardie, Total E & P North Sea UK Ltd,UK
Rupert Hunt, Halliard Consulting Ltd, UK
Henrik Stadsgaard, Mærsk Drilling A/S, Denmark
JRC Survey and Engineering Sub-Committee Presentation : JRC Rig Location & Move Code of Practice and Warranty Survey Scope of Work
James Miller, Chubb Overseas General Insurance
John Munnings-Tomes, The Harford
Paradigm Shift in Managing Safe and Efficient Jack-up Rig Moves Through Engineering and Operational Excellence
K. Burana, Transocean; C. Jantarawaranyoo, Shelf Drilling (formerly Transoceanic)
O.A. Purwana, National University of Singapore (formerly DNV GL)
N.R.G. Sabin, DNV GL – Noble Denton Marine Services
Self Elevating Platform (Incl. Liftboat) Incidents
M. van der Kraan, Shell Global Solutions International
Rapid Development in Offshore Wind and the Need for Jackup Installation Vessel Evolution
Michael Perry, Margarita Ivanova Georgieva, Mathew Quah, Foo Kok Seng, Offshore Technology Development (KEPPEL)
Wave-current Blockage: Reduced Loads and Structural Responses of Lattice-Legged Jack-ups
H. Santo, TCOMS, Singapore; P.H. Taylor, University of Western Australia
A.H. Day, University of Strathclyde; Y.S. Choo, National University of Singapore
On Jack-up Hull-in-water Wave-induced Leg Loads and Surge Motion during Extraction of Embedded Spudcans
Y. Zhang, K.R. Drake, Noble Denton Marine Services, DNV GL – Oil & Gas
CFD Analysis of Drag Forces Acting on Jack-up Leg Chords
Zhirong Shen, Kai Yu, Zhongfu Ge, Qing Yu, American Bureau of Shipping
Zana Sulaiman, Henri van der Heiden, Hugo Hofstede, GustoMSC B.V.
16th Conference Proceeding
JRC Survey and Engineering Sub-Committee Presentation : JRC Rig Move Code of Practice and Warranty Survey Scope of Work
John Munnings-Tomes, James Miller
An Improved Energy Approach for Jackup Touchdown Assessment
Michael Perry, Han Mu, Keppel Offshore & Marine Technology Centre
Brad Mobbs, Julian Bowes, Keppel LeTourneau USA
Foo Kok Seng, Mathew Quah, Offshore Technology Development
An Investigation into the Use of Transient Wave Packets for the Simulation of Spudcan Impacts When Going on Locaiton
K.R. Drake, Noble Denton Marine Services, DNV GL – Oil & Gas
Seabed Modelling Effects on Jack-up Response while Going on Location
Jose H. Vazquez, Barton D. Grasso., Marcus Gamino, 3Dent Technology, LLC
John S. Templeton, III, Sage USA, Inc.
Benefits of Modern Instrumentation for Hull Motions and Seastates during Jackup Rig Moves
James N. Brekke, Brekke Offshore Consulting, LLC
Thomas L. Johnson, BMT Scientific Marine Services Inc.
Jack-up Motion Response and Leg to Seabed Impact Loads during Installation at Site: Comparison of Model Tests and Simulations
J.W. Serraris, MARIN (Maritime Research Institute Netherlands)
A. Carinato, F.A. Huijs, H. Hofstede, GustoMSC
D. Luger, Deltares
Skirted Spudcan-Soil Interaction under Combined Loading – Gap Conditions after Preloading
L. Kelley, O. Koreta, S.S. Sundararajan, Geo, Copenhagen, Denmark
Transient Flow Analysis inside a Skirted Jack-up’s foundation towards the Outside Seabed
Siamak Feizi, Knut Arnesen, Foundations group, DNV GL, Norway
Ovar Aarsland, Statoil ASA, Norway
Experiences with Leg Penetration and Extraction of Offshore Wind Jack-up Vessels on Sites with London Clay
S. Raymackers, C. Morris, K.Vannieuwenhuyse, D. Rabaul, Design and Engineering Department GeoSea, DEME Group
Planning the Preloading Procedure to Account for Rate-effects in Clays
H. Versteele, D.N. Cathie, M.Y.K. Kuo, Cathie Associates
S. Raymackers, GeoSea
Development of a New Annex to ISO 19905-1 that Provides an Approach and Criteria for the Use of Foundation Capacities that are Calculated based on Soil Strength Rather than Applied Preload
D.H. Edwards, Noble Denton Marine Services, DNV GL
H. Hofstede, GustoMSC
D.N. Cathie, Cathie Associates
G.T. Houlsby, Department of Engineering Science, University of Oxford
L. Kelley, GEO
C.T. Erbrich, Fugro AG
The Serial Production Approach for Jack-up Activities in the Renewable Energy Sector: Challenges to Interface Detail and Safety Management
Ekkehard Stade, Global Maritime Germany, Hamburge, Germany
Effective Shear Areas of Jack-up Chords – Development of a Logical Approach to Assessment
Brad Mobbs, Keppel LeTourneau USA
John J. Stiff, Consultant supported by ABS
An Investigation into the Global Sway Buckling Failure Mode of Jack-up Units and its Impact on the Calculation of Effective Length Factors for Individual Legs
A.R. McLaren, Noble Denton Marine Services, DNV GL – Oil & Gas
New Lessons Learned from North Sea Jack-up Drilling Operations
R.J. Hunt, R.F. Overy, Halliard Consulting Ltd
D. Vavasseur, MÆrsk Oil North Sea UK Ltd
H. Stadsgaard, MÆrsk Drilling A/S
Earthquake Effects on the Cantilever Beam of a Drilling Jackup
Barton D. Grasso, Jose H. Vazquez, Juan Santos, 3Dent Technology LLC
High Strength Steels for Jack-up Platforms
Stefan Herion, KoRoH GmbH, Center of Competence for Tubes and Hollow Sections CCTH
Stephan Scherf, Vallourec Deutschland GmbH
Independent Verification of a CJ70 at Sleipner B – Accounting for Existing Footprints and Cyclic Soil Behaviour
K. Heurlin, R. Bendzovski, DNV GL
O. Aarsland, Statoil ASA
Rock-fill Dimensioning, Construction and Testing for Foundation of a Jack-up on a Sloping Seabed
S Rességuier, L. Hamre, Marine Structures Department, Foundations Section,DNV GL, OSLO
Bearing Capacities of Spudcan Foundations in Clay after Penetrating Through a Sand Layer
P. Hu, B. Bienen, M.J. Cassidy, Centre for Offshore Foundation Systems, University of Western Australia
Effects of Consolidation on the Undrained Combined WHM Capacity of Spudcans
R. Ragni, B. Bienen, M.J. Cassidy, University of Western Australia
D. Masin, Charles University of Prague
D. Wang, Ocean University of China
Status Report: IOGP / ISO TC67 / SC7 / WG7 & ISO 19905 – SSA of MOUs
Mike Hoyle, Noble Denton Marine Services
15th Conference Proceeding
Boundary Layer Profile Background and Mathematical Tools
J. Andrew Breuer, Consultant
Joseph H. Rousseau, James N. Brekke, American Bureau of Shipping
Modern Jack-ups and their Dynamic Behaviour: Investigating the trends and limits of moving into deeper waters
T. Koole, Delft University of Technology, the Netherlands
M. van der Kraan, Shell Global Solutions International
Tools for Mitigating and Managing VDL Limitation in Challenging Australian Soil and Environmental Conditions
Neil Pollock, Noble Denton Marine Assurance and Advisory, DNV GL – Oil & Gas
Ian Moyle, Origin Energy
Mark Hayward, Zahidur Rahman , Noble Denton Marine Assurance and Advisory, DNV GL – Oil & Gas
Jackup Going on Location Analysis
Paolin Tan, Xiaohong Chen, Qing Yu, ABS
Michael Perry, Han Mu, Keppel Offshore & Marine Technology Centre
Ted Chang, Marc Wong, Bennett Offshore
Donghui Chen, Genesis Engineering
On the Role of Jack-up Hull-in-water Radiation Impedance during Spudcan Impacts with the Seabed
K.R. Drake, Y Zhang, Noble Denton Marine Assurance and Advisory, DNV GL – Oil & Gas
Review of Historical Jack-up Rig Spudcan Penetration Predictions in Malaysian Waters
M.J. Rohani, F.A. Shaari, A.B.A. Rahman, Petronas Carigali SDN. BHD.
N. Chan, K.K. Tho, Fugro Singapore
Re-visiting YOLLA- New Insights on Spudcan Penetration
Erbrich C.T., Amodio A., Krisdani H., Lam S. Y., Xu X., Fugro AG Pty Ltd
Tho KK., Fugro Singapore Pte Ltd
A Centrifugal Model Study for Bearing Capacity of the Spudcan Foundation in Soft Clay with Increased Undrained Shear Strength
J.H. Choi, Beom-Seon Jang, J. Zhao,, Seoul National University
A FE Procedure for Calculation of Fixity of Jack-up foundations with Skirts using Cyclic Strain Contour Diagrams
H.P. Jostad, Ø. Torgersrud and H.K. Engin, Norwegian Geotechnical Institute (NGI)
H. Hofstede, GustoMSC
Non-linear Versus Linear Foundation Modelling in Dynamic Response of an AJ70 Jack-up
H. Hofstede, S.M. Hoogeveen, GustoMSC & GustoMSC US
K. Skau, Ø. Torgersrud, H. K. Engin, NGI
Spudcan Penetration Analyses for Three Case Histories in Sand Overlying Clay
P. Hu, M.J. Cassidy, D. Wang, S.A. Stanier, The University of Western Australia
Use of Novel Spudcan Shapes for Mitigating Punch-through Hazards
J.M. Lee, Y.H. Kim, M.S. Hossain, M.J. Cassidy, Y. Hu, the University of Western Australia
J.H. Won, J.S. Park, M.J. Jun, Daewoo Shipbuilding & Marine Engineering Co. Ltd., Korea
Development of a Force Resultant Model for Spudcans on Dense Sand Based on Centrifuge Studies
N. Cheng, M.J. Cassidy, the University of Western Australia
Overcome Jack-up Rig Installation Problem in Difficult Soil Condition in East Sea – A Case History
X. Li, P. Handidjaja, T.C. Teh, D. Q. Nhut, Braemar Technical Services (Offshore) Pte. Ltd
Modelling the Effects of Pauses during Spudcan Penetration on Further Installation Behaviour
R. Ragni, D. Wang, M.J. Cassidy, B. Bienen, the University of Western Australia
D. Masin, Charles University of Prague
Case Study of Spudcan Re-penetration Analysis using Large Deformation Finite Element Approach
K.K. Tho, J. Chan, Furgo Singapore
Y. ZHou, J. Liu, S. ZHou, China Oilfield Services Limited
3D Large Deformation Finite Element Analyses of Jack-up Reinstallations Near Idealised Footprints
Wensong Zhang, Mark J. Cassidy, Yinghui Tian, the University of Western Australia
Seabed Remediation for Safe Sequential Jack-up Vessel Installations in the Harbour Areas
L. Kellezi, L. Xu, C. Molina, Geo, Copenhagen, Denmark
T. C. Millward, M.S. Pedersen, A2SEA, Fredericia, Denmark
Theoretical Study on the Effect of a Weak Layer on the Vertical Bearing Capacity of Spudcans in Clay
V.M. Meyer, Y. Zhang, D.A. Kort, Norwegian Geotechnical Institute
Efficient Nonlinear Dynamic Analysis of Elevated Jack-ups under Vessel Impact
A. Raithatha, R.W.P. Stonor, Noble Denton Marine Assurance and Advisory, DNV GL – Oil & Gas
Earthquake Assessments of Jack-ups using ISO 19905-1:2012 Screening Procedures
Douglas J. Stock, Digital Structures Inc.
John J. Stiff, Consultant
James N. Brekke, ABS
Re-visiting YOLLA – Managing Jack-up Storm Stability: Geotechnical Assessment
A. Amodio, C. Erbrich, V. Murugavel, Fugro AG Pty Ltd.
I. Moyle, Orgin Energy Pty Ltd.
Design Considerations of DOL and VFD Jacking System
B.V. E. How, H.D. Xu, S. Menon, K.S. Foo, Keppel Offshore & Marine Technology Centre