A review on defects in steel offshore structures and developed strengthening techniques

Abstract There is a high demand for life extension of offshore structures in different regions, such as Gulf of Mexico, North Sea, Malaysian and Australian waters, and etc., that are now reaching, or have exceed, their design life. An integral part of any life extension programme after assessing fitness for purpose (FFP) of the structure is strengthening, modification and repair (SMR) schemes. SMR provides a backbone to ensure structural integrity of platforms. In the context of offshore structures, however, SMR is a highly multidisciplinary engineering task requiring various skills and knowledge. This paper provides an insight on the different aspects related to this subject, from different types of offshore structures and respective loads to a comprehensive review on damages to steel offshore platforms as well as on the development in available SMR techniques. Furthermore, FFP assessment process for existing offshore platforms is briefly discussed based on the present guidelines. Finally, several gaps in the respective knowledge still needed to be addressed are introduced.

[1]  Guangya Zhang,et al.  Distribution and potential of global oil and gas resources , 2018, Petroleum Exploration and Development.

[2]  L. L. Martinez.  Fatigue Life Extension Procedure for Offshore Structures by Ultrasonic Peening , 2010 .

[3]  Dimitri V. Val,et al.  Decision analysis for deteriorating structures , 2005, Reliab. Eng. Syst. Saf..

[4]  Torsten Schlurmann,et al.  PHYSICAL MODELING OF SCOUR AROUND TRIPOD FOUNDATION STRUCTURES FOR OFFSHORE WIND ENERGY CONVERTERS , 2011 .

[5]  M. Shokrieh,et al.  Numerical investigation of FRP-strengthened tubular T-joints under axial compressive loads , 2013 .

[6]  D. Fydrych,et al.  The Effect of Wet Underwater Welding on Cold Cracking Susceptibility of Duplex Stainless Steel , 2016 .

[7]  Joseph R. Davis.  Corrosion: Understanding The Basics , 2000 .

[8]  Vikram Pakrashi,et al.  Fragility analysis of steel and concrete wind turbine towers , 2012 .

[9]  Tao Chen,et al.  Fatigue bending test on grouted connections for monopile offshore wind turbines , 2018, Marine Structures.

[10]  Robert B. Gordon,et al.  Mooring Integrity Management: A State-of-the-Art Review , 2014 .

[11]  Paul Grundy,et al.  PRESTRESS ENHANCEMENT OF OF GROUTED PILE/SLEEVE CONNECTIONS , 1991 .

[12]  Yongsheng Zhao,et al.  Preliminary Design of a Multi-Column TLP Foundation for a 5-MW Offshore Wind Turbine , 2012 .

[13]  M. Seidel,et al.  Jacket substructures for the REpower 5M wind turbine , 2007 .

[14]  Yunlu Jiang,et al.  Analysis and improvement of underwater wet welding process stability with static mechanical constraint support , 2018 .

[15]  J L Trinh,et al.  STRENGTH AND FATIGUE BEHAVIOUR OF GROUTED TUBULAR JOINTS EXPERIMENTAL PROJECT , 1994 .

[16]  Michael F. Ashby,et al.  The force exerted by a moving ice sheet on an offshore structure , 1983 .

[17]  Feargal Brennan,et al.  Multi-criteria assessment of offshore wind turbine support structures , 2011 .

[18]  Ingar Scherf,et al.  Cost-Efficient Structural Upgrade and Life Extension of North Sea Jacket Platforms With Use of Modern Reassessment Techniques , 1999 .

[19]  Yoo Sang Choo,et al.  Stress intensity factor for a tubular T-joint with grouted chord , 2012 .

[20]  Chang-Wan Kim,et al.  Study on the marine growth effect on the dynamic response of offshore wind turbines , 2012 .

[21]  M. Lee.  Fatigue, Fracture Mechanics and Defect Assessment of Tubular Structures , 1998 .

[22]  Junbo Jia.  Seismic Analysis For Offshore Industry: Promoting State of the Practice Toward State of the Art , 2012 .

[23]  John W. Gaythwaite.  Design of Marine Facilities: Engineering for Port and Harbor Structures , 2016 .

[24]  C J Billington,et al.  A NEW APPROACH TO DESIGNING REPAIR CLAMPS FOR OFFSHORE STRUCTURES , 1989 .

[25]  Jialu Du,et al.  Development of subsea production system and its control system , 2017, 2017 4th International Conference on Information, Cybernetics and Computational Social Systems (ICCSS).

[26]  Seth Price,et al.  Corrosion Protection Systems and Fatigue Corrosion in Offshore Wind Structures: Current Status and Future Perspectives , 2017 .

[27]  H. D. Besten,et al.  Fatigue damage criteria classification, modelling developments and trends for welded joints in marine structures , 2018, Ships and Offshore Structures.

[28]  Enrico Zio,et al.  On the use of the analytic hierarchy process in the aggregation of expert judgments , 1996 .

[29]  H. S. Westlake,et al.  Structural Integrity Management (SIM) of Offshore Facilities , 2005 .

[30]  K. J. Kirkhope,et al.  Weld detail fatigue life improvement techniques. Part 1: review , 1999 .

[31]  Feargal Brennan,et al.  Review of corrosion fatigue in offshore structures: Present status and challenges in the offshore wind sector , 2016 .

[32]  J Peter Ault,et al.  The Use of Coatings for Corrosion Control on Offshore Oil Structures , 2006 .

[33]  Ian F. C. Smith,et al.  A review of fatigue strength improvement methods , 1985 .

[34]  N Zettlemoyer,et al.  Life extension of fixed platforms , 2010 .

[35]  N. Barltrop,et al.  Dynamics of Fixed Marine Structures , 1991 .

[36]  M. Lalani.  Background to the Use of Structural Clamps in the Strengthening of Two Gulf of Mexico Platforms , 1991 .

[37]  P. Haagensen.  Fatigue strength improvement methods , 2011 .

[38]  Min Ook Kim,et al.  Analysis and design of floating prestressed concrete structures in shallow waters , 2018 .

[39]  Stephen Liu,et al.  Porosity variation along multipass underwater wet welds and its influence on mechanical properties , 2006 .

[40]  S. Butterfield,et al.  Energy from Offshore Wind , 2006 .

[41]  I. E. Tebbett,et al.  The Punching Shear Strength Of Tubular Joints Reinforced With a Grouted Pile , 1979 .

[42]  S. Chakrabarti.  Chapter 4 – Loads and Responses , 2005 .

[43]  Sandra Finsås Wika.  Pitting and Crevice Corrosion of Stainless Steel under Offshore Conditions , 2012 .

[44]  K. F. Lambrakos,et al.  Wave‐current interaction effects on water velocity and surface wave spectra , 1981 .

[45]  R. Krone,et al.  Mobile demersal megafauna at common offshore wind turbine foundations in the German Bight (North Sea) two years after deployment - increased production rate of Cancer pagurus. , 2017, Marine environmental research.

[46]  Adel Younan,et al.  API RP2EQ - Seismic Design Procedures and Criteria for Offshore Structures , 2010 .

[47]  Sanjeev Malhotra,et al.  Selection, Design and Construction of Offshore Wind Turbine Foundations , 2011 .

[48]  A. Stacey,et al.  Structural Integrity Management Framework for Fixed Jacket Structures , 2008 .

[49]  Giovanni Spagnoli.  Some considerations regarding the use of helical piles as foundation for offshore structures , 2013, Soil Mechanics and Foundation Engineering.

[50]  Wei Xu,et al.  Microstructural and mechanical performance of underwater wet welded S355 steel , 2016 .

[51]  M. Rowe,et al.  The effect of ferro-alloy additions and depth on the quality of underwater wet welds , 2002 .

[52]  Sanjeev Malhotra.  Design and Construction Considerations for Offshore Wind Turbine Foundations , 2007 .

[53]  Henrik Grigorian,et al.  Strengthening of Offshore Steel Components Using High-Strength Grout: Component Testing and Analytical Methods , 2001 .

[54]  L. Tong,et al.  Experimental and numerical investigation on behavior of CFRP-strengthened circular hollow section gap K-joints , 2016 .

[55]  Robert J. Nicolson,et al.  State of Art in Life Extension of Existing Offshore Structures , 2012 .

[56]  Jeffrey A. Packer,et al.  FRP materials for the rehabilitation of tubular steel structures, for underwater applications , 2007 .

[57]  G. Farrahi,et al.  The effect of shot peening on fatigue life of welded tubular joint in offshore structure , 2012 .

[58]  Gary Marquis,et al.  A guideline for fatigue strength improvement of high strength steel welded structures using high frequency mechanical impact treatment , 2013 .

[59]  Ervin Bossanyi,et al.  Wind Energy Handbook , 2001 .

[60]  R. M. Chandima Ratnayake,et al.  Strengthening, modification and repair techniques' prioritization for structural integrity control of ageing offshore structures , 2015, Reliab. Eng. Syst. Saf..

[61]  Mohamed A. El-Reedy,et al.  Offshore Structures: Design, Construction and Maintenance , 2012 .

[62]  József Farkas,et al.  Mechanics and design of tubular structures , 1998 .

[63]  G. D. Hahn,et al.  A Review of Fitness-For-Service and Life Extension Assessment Methodologies Relating to Corrosion Features in Fatigue Sensitive Risers and Pipelines , 2015 .

[64]  Lin Xiao,et al.  Review of fatigue assessment approaches for tubular joints in CFST trusses , 2018, International Journal of Fatigue.

[65]  Robert G. Bea.  Human and organization factors: engineering operating safety into offshore structures , 1998 .

[66]  K. Lau,et al.  Characterisation of mechanical and thermal properties of epoxy grouts for composite repair of steel pipelines , 2013 .

[67]  John Billingham,et al.  Deepwater Welding For Installation And Repair – A Viable Technology? , 2002 .

[68]  Jerzy Łabanowski,et al.  Bead-On-Plate Welding on S235JR Steel by Underwater Local Dry Chamber Process , 2014 .

[69]  Wim Turkenburg,et al.  Renewable electricity in the Netherlands , 2004 .

[70]  Thomas G. Brown,et al.  Ice crushing forces on offshore structures: Global effective pressures and the ISO 19906 design equation , 2017 .

[71]  Ozden O. Ochoa,et al.  Extending onshore pipeline repair to offshore steel risers with carbon–fiber reinforced composites , 2010 .

[72]  Y. Sakai,et al.  Experiments on concrete filled and reinforced tubular K-joints of truss girder , 2004 .

[73]  A. S. J. Swamidas,et al.  Essentials of Offshore Structures: Framed and Gravity Platforms , 2013 .

[74]  I. E. Tebbett.  Recent Developments in the Design of Grouted Connections , 1987 .

[75]  S. Valsgard,et al.  Collisions and Damage of Offshore Structures: A State-of-the-Art , 1985 .

[76]  Jerzy Łabanowski,et al.  Development of under-water welding techniques , 2011 .

[77]  Massoud Malaki,et al.  Strength enhancement of the welded structures by ultrasonic peening , 2012 .

[78]  Siamak Parsanejad.  Strength of Grout-Filled Damaged Tubular Members , 1987 .

[79]  G. Abdel Ghoneim,et al.  Comparison of ISO And API Seismic Design Requirements For Offshore Structures , 2009 .

[80]  H. Humble.  Cathodic Protection of Steel Piling In Sea Water , 1949 .

[81]  William J. Graff.  Introduction to Offshore Structures: Design, Fabrication, Installation. , 1981 .

[82]  D. Fydrych,et al.  Underwater Welding - A Review , 2008 .

[83]  P. Le Tirant.  Seabed Reconnaissance And Offshore Soil Mechanics for the Installation of Petroleum Structures , 1979 .

[84]  Massoud Malaki,et al.  A review of ultrasonic peening treatment , 2015 .

[85]  Rajan Sen,et al.  Application of FRP composites for underwater piles repair , 2007 .

[86]  Torgeir Moan,et al.  Fatigue reliability analysis of the jacket support structure for offshore wind turbine considering the effect of corrosion and inspection , 2012, Reliab. Eng. Syst. Saf..

[87]  Fei Xu,et al.  Experimental investigation of SCF distribution for thin-walled concrete-filled CHS joints under axial tension loading , 2015 .

[88]  K. J. Kirkhope,et al.  Weld detail fatigue life improvement techniques. Part 2: application to ship structures ☆ , 1999 .

[89]  Abe Nezamian,et al.  An Oil Field Structural Integrity Assessment for Re-Qualification and Life Extension , 2013 .

[90]  Marcello Braglia,et al.  The analytic hierarchy process applied to maintenance strategy selection , 2000, Reliab. Eng. Syst. Saf..

[91]  S. K. Coakrabarti,et al.  Wave Forces on a Randomly Oriented Tube , 1975 .

[92]  S. Parsanejad,et al.  Tests of partially grout filled damaged tubular members , 1988 .

[93]  John Sharp,et al.  A Framework for the Management of Ageing of Safety Critical Elements Offshore , 2011 .

[94]  J. Sharp.  The use of steel and concrete in the construction of North Sea oil production platforms , 1979 .

[95]  Ove Ditlevsen,et al.  Stochastic model for joint wave and wind loads on offshore structures , 2002 .

[96]  D. Fydrych,et al.  Underwater Wet Repair Welding of API 5L X65M Pipeline Steel , 2017 .

[97]  A. R. Santhakumar,et al.  Development of a Fly Ash and Epoxy Based High-Performance Grout for the Repair of Offshore Platforms , 2001, "SP-199: Seventh CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag and Natural Pozzolans in Concrete".

[98]  Amr S. Elnashai,et al.  EXPERIMENTAL AND ANALYTICAL INVESTIGATIONS OF THE INTEGRITY OF PILE/PLATFORM COMPOSITE CONNECTIONS , 1987 .

[99]  S Parsanejad,et al.  Behavior of Partially Grout-Filled Damaged Tubular Members , 1992 .

[100]  Mohd Zamin Jumaat,et al.  Review of offshore energy in Malaysia and floating Spar platform for sustainable exploration , 2012 .

[101]  Kjetil Uhlen,et al.  Offshore Wind Energy Technology , 2018 .

[102]  K. Khalil,et al.  Erosion - Corrosion of Cermet Coating , 2013, International Journal of Electrochemical Science.

[103]  B. Epureanu,et al.  A review of foundations of offshore wind energy convertors: Current status and future perspectives , 2018 .

[104]  G. Najafian,et al.  LIFETIME EXTENSION OF AGEING OFFSHORE STRUCTURES BY GLOBAL ULTIMATE STRENGTH ASSESSMENT (GUSA) , 2018 .

[105]  Aoife Foley,et al.  The evolution of offshore wind power in the United Kingdom , 2014 .

[106]  I-Wen Chen,et al.  Design and Analysis of Jacket Substructures for Offshore Wind Turbines , 2016 .

[107]  T. Diamantino,et al.  Marine paints: The particular case of antifouling paints , 2007 .

[108]  Yangyang Liu,et al.  Management of life extension for topsides process system of offshore platforms in Chinese Bohai Bay , 2015 .

[109]  Ivar Langen,et al.  A framework to assess structural integrity of ageing offshore jacket structures for life extension , 2017 .

[110]  R. M. Chandima Ratnayake,et al.  Structural Integrity Control of Ageing Offshore Structures: Repairing and Strengthening With Grouted Connections , 2013 .

[112]  O. Gjørv,et al.  Durability of reinforced concrete wharves in Norwegian harbours , 1969 .

[113]  Thiru Aravinthan,et al.  Effectiveness of using fibre-reinforced polymer composites for underwater steel pipeline repairs , 2013 .

[114]  Hongming Gao,et al.  Droplet rebounded spatter in dry hyperbaric gas metal arc welding process , 2014 .

[115]  Thomas H. Dawson.  Offshore Structural Engineering , 1983 .

[116]  Torgeir Moan,et al.  Probabilistic methods for planning of inspection for fatigue cracks in offshore structures , 2016 .

[117]  A. Momber.  Corrosion and corrosion protection of support structures for offshore wind energy devices (OWEA) , 2011 .

[118]  Rodrigo Pérez Fernández,et al.  Offshore concrete structures , 2013 .

[119]  John B. Herbich.  Seafloor scour : design guidelines for ocean-founded structures , 1984 .

[120]  Y. Wang,et al.  Literature Review on State of the Art in Shot Peening in the Last Decade (2006–2015) , 2017 .

[121]  Jan Sunner,et al.  Biocorrosion: towards understanding interactions between biofilms and metals. , 2004, Current opinion in biotechnology.

[122]  Mamdouh M. Salama,et al.  Offshore composites: Transition barriers to an enabling technology , 2005 .

[123]  Ingar Scherf,et al.  Cost-Efficient Structural Upgrade and Life Extension of Ekofisk Platforms with Use of Modern Reassessment Techniques , 2001 .

[124]  J. Wardenier,et al.  Fatigue behaviour and ultimate capacity of grouted tubular joints , 1996 .

[125]  Nazrul Islam,et al.  Double hinged articulated tower interaction with wind and waves , 2009 .

[126]  Fidelis R Mashiri,et al.  Fatigue Behavior of Welded T-Joints with a CHS Brace and CFCHS Chord under Axial Loading in the Brace , 2013 .

[127]  Xudong Qian,et al.  Fatigue and residual strength of concrete-filled tubular X-joints with full capacity welds , 2014 .

[128]  Gu¨nther F. Clauss.  The Conquest of the Inner Space - Challenges and Innovations in Offshore Technology , 2007 .

[129]  Julian Wolfram,et al.  EFFECTS OF MARINE GROWTH AND HYDRODYNAMIC LOADING ON OFFSHORE STRUCTURES , 1996 .

[130]  S. J. Maddox,et al.  IIW recommendations on methods for improving the fatigue strength of welded joints , 2013 .

[131]  Weui-Bong Jeong,et al.  Dynamic response of floating substructure of spar-type offshore wind turbine with catenary mooring cables , 2013 .

[132]  James M. Ricles,et al.  Grout Repair of Dented Offshore Tubular Bracing—Experimental Behavior , 1994 .

[133]  Marco Souza,et al.  Repairs of Hurricane Damaged Platforms in the Bay of Campeche , 1998 .

[134]  Torben Forsberg,et al.  Offshore Wind Turbine Foundation: The COWI Experience , 2007 .

[135]  Xu Yang,et al.  Centrifuge modeling of lateral bearing behavior of offshore wind turbine with suction bucket foundation in sand , 2017 .

[136]  N. Christensen.  The Metallurgy of Underwater Welding , 1983 .

[137]  Jun Wang,et al.  Microstructure and mechanical properties of ultrasonic assisted underwater wet welding joints , 2016 .

[138]  G. Timco,et al.  A critical review of Arctic pack ice driving forces: New sources of data , 2017 .

[139]  J. R. Williams,et al.  A New Repair And Strengthening Technique For Steel Offshore Structures , 1993 .

[140]  David Galbraith,et al.  Managing life extension in Ageing offshore Installations , 2005 .

[141]  Mahmood M. Shokrieh,et al.  FRP wrapping for the rehabilitation of Circular Hollow Section (CHS) tubular steel connections , 2015 .

[142]  Gerhard Ersdal,et al.  Assessment of existing offshore structures for life extension , 2005 .

[143]  W. M. Bruin,et al.  Experimental And Analytical Studies On The Residual Strength And Repair Of Dent-Damaged Platform Bracing , 1994 .

[144]  Lyle David Finn,et al.  The Cell Spar and Vortex Induced Vibrations , 2003 .

[145]  Wei Li,et al.  Nonlinear random motion analysis of coupled heave-pitch motions of a spar platform considering 1st-order and 2nd-order wave loads , 2016 .

[146]  Mohammad Reza Bahaari,et al.  Experimental investigation of FRP-strengthened tubular T-joints under axial compressive loads , 2014 .

[147]  Lin-Hai Han,et al.  Behaviour of grout-filled double skin steel tubes under compression and bending: Experiments , 2017 .

[148]  Torgeir Moan,et al.  Long-term fatigue analysis of multi-planar tubular joints for jacket-type offshore wind turbine in time domain , 2011 .

[149]  Gregorio Iglesias,et al.  A review of combined wave and offshore wind energy , 2015 .

[150]  Ran Feng,et al.  Tests of bare and concrete-filled CHS T-joints with concave chord under axial compression , 2015 .