IMCA LIFTING & RIGGING SEMINAR Ropes for Offshore Heavy Duty - PowerPoint PPT Presentation

Lifting & Rigging Seminar IMCA LIFTING & RIGGING SEMINAR Ropes for Offshore Heavy Duty Applications & Integrity Management Matteo Ducceschi Thursday, 27 th September 2018

TOPICS Introduction Ropes & Comparison Maintenance Approaches Conclusions Thursday, 27 th September 2018

TOPICS Introduction Ropes & Comparison Maintenance Approaches Conclusions Thursday, 27 th September 2018

INTRODUCTION Background For EPCI Contractors…  In the medium-long term offshore market scenario the focus will be on the subsea field development segment  SURF developments are moving to ultra-deep waters and typical topside processes are being relocated onto the seabed  Tighter capital discipline enhances the search for flexibility , cost-efficiency and for optimized project schedule  Subsea deployment and laying capabilities are pushed to their technological limits and innovative solutions are being invest igated and developed by the market players to overcome present technological showstoppers … ropes are becoming more and more crucial Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 4 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

INTRODUCTION Applications, Needs and Alternatives Applications  Heavy duty subsea deployment  Pipeline abandon and recovery  Heavy lifting  Mooring Needs  Higher SWL / Lower SF  Low paying load reduction with water depth increase  Low impact on existing / chartered assets (and equipment) Alternatives  Large diameter steel wire ropes  Multi-fall / multi-cable steel wire rope systems  Heavy duty fibre ropes  Parallel fibre cables  Hybrid rope concept  Combined rope systems  Improved and modern IMR approaches Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 5 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

INTRODUCTION Areas of Improvement S teel Wire Ropes Predictive Maintenance IMR Fibre Ropes Approach DIGITAL ENABLED SOLUTIONS PRODUCT DEVELOPMENT Rope Rope Design CBM Fibre Cables Based System Hybrid Ropes Preventive Maintenance Rope Equipment Fibre Rope Multi-fall S ystems S ystems Hybrid S ystems SYSTEM DEVELOPMENT Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 6 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

TOPICS Introduction Ropes & Comparison Maintenance Approaches Conclusions Thursday, 27 th September 2018

ROPES & COMPARISON Considered Constructions and Materials Steel Wire Rope  Non rotating  WS C core Core Rope  S teel Strand Wire  S ocket termination, … Fibre Rope Fibre  Braided rope  HMPE  Eye termination, … Strand Yarn Rope Fibre Cable  Parallel fibres  HMPE  Thimble termination Continuous Thimble Thimble Parallel Fibre Yarns Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 8 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

ROPES & COMPARISON Mechanical Properties Comparison Weight in Water vs MBL Diameter vs MBL 60 130 120 Note for any kind or rope: weight doesn’ t 50 110 consider socket s, shackles, t himbles, or any Diameter [mm] Weight [kg/m] 40 ot her connect ion component . 100 90 30 80 20 70 60 10 50 0 40 150 300 450 600 750 900 1050 150 300 450 600 750 900 1050 MBL [ton] MBL [ton] Wire Rope Fibre Rope Parallel Fibre Cable Wire Rope Fibre Rope Parallel Fibre Cable Weight comparison @ 1000 tons MBL 60 W in Air … however a comparison merely Linear Weight [km/m] 50 W in Water based on rope mechanical properties 40 would return only rough information 30 about applicability on different field 20 application … 10 0 Wire Rope Fibre Ropes Parallel Fibre Cable Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 9 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

ROPES & COMPARISON Technology Benchmark Steel Wire Rope Fibre Rope Parallel Fibre Cable Weight Specific weight (0.9-1.5 kg/ dm 3 ) S ame specific weight of fibre Specific weight (7.85 kg/ dm 3 ) depending on fibres material ropes (due to base materials ) Diameter High fill factors warrant low Rope construction lead to higher S ame diameter of steel wire ropes diameters diameters (due to manufacturing process ) Length No technical limits No technical limits Limited to EW plant length 150 m Temperature Up to ab. 70-90° C (depending on Up to ab. 70-90° C (depending on Resistance Up to ab. 100° C fibres material) fibres material) Cyclic Load CBOS condition still critical for Infinite fatigue life under axial Resistance CBOS condition can be managed temperature build-up loading Chemical Corrosion issues on UV impact and water absorption UV impact and water absorption Resistance marine/ subsea envionment (not for HMPE) can be managed (not for HMPE) can be managed Spool-ability Typical D/d ratio 18-20 Typical D/d ratio up to 30 Not spoolable under tension Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 10 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

ROPES & COMPARISON A Real Case: OIE Carrier Mooring Ropes The Offset Installation Equipment carrier has been designed to intervene in case of blow out event when no vertical access is possible Temperature Chemical Weight Length Spool-ability Resistance Resistance Steel Wire Rope Fibre Rope Parallel Fibre Cable A spoolable, light and temperature resistant fibre rope was finally selected Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 11 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

TOPICS Introduction Ropes & Comparison Maintenance Approaches Conclusions Thursday, 27 th September 2018

MAINTENANCE APPROACHES Trends and Comparison Maintenance has evolved from a corrective process , performed aft er a funct ional failure, t o a preventive activity where it ems are maint ained according to a time-schedule based on t he assumpt ion that a component has a defined lifet ime. However, estimat es of lifet ime have large uncertaint ies. In order to reduce t he uncert aint y condition-based maintenance , based on t he assessment of asset condit ion, emerged enabling also more sophist icat ed predictive approaches . Maintenance Productivity Operative Effectiveness Life Downtimes System Reliability Repair Costs Risks On-site Spare Parts Maintainers Corrective Preventive Condition-Based Predictive Maintenance Maintenance Maintenance Maintenance Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 13 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.

MAINTENANCE APPROACHES Rules & Regulations Ropes Integrity Management Third Parties Requirements  ISO 4309:2010 and API-RP-9B : est ablishes general principles for t he care and maint enance, and inspect ion and discard of st eel wire ropes used on cranes and hoist s  IMCA-SEL-022 : provides guidance on t he element s of an IMR syst em required t o achieve an accept able level of ongoing safet y for t he use of wire ropes in a marine environment  DNVGL-ST-E407 : provides t he st ruct ure for assuring t hat rope based deployment and recovery syst ems will funct ion as int ended unt il discarded Internal Requirements  Dedicated Work Instructions , complement ary or narrowing t he above ment ioned st andards, can be put in place providing inst ruct ions t o ensure t he correct condition of wire ropes by periodic inspect ions and maint enance on-board OCVs General Note  It has to be not iced t hat DNVGL-ST-E407 and IMCA-SEL-022 opens t o a continuous monitoring and predictive approaches for wire rope monitoring, while ot her above ment ioned standards mainly reflect a preventive maintenance approach Thursday, This document is property of Saipem S.p.A. who will safeguard it s right according t o t he civil and penal provisions of t he law. 14 27 th September 2018 The content of this document is confidential and cannot be disclosed wit hout S aipem S .p.A. writ t en aut horizat ion.