[WRE ADVISOR | BUSINESS] • What future testing is still required / being performed?
• What were the most reliable methods for estimating residual rope life?
PUTTING LIFTING AND RIGGING AT THE CORE OF IMCA’S ACTIVITIES
IMCA has had a highly proactive and technically respected Crane and Winch Operations Workgroup for many years, but in adapting our strategies to improve efficiency and added value for members, we have now established the IMCA Lifting & Rigging Management Committee (LRMC) as a core activity alongside Competence & Training (C&T); and Safety, Environment & Legislation (SEL) in addition to our four Technical Divisions – Diving, Offshore Survey, Marine, and Remote Systems and ROVs. Chaired by Sandy Steven, Technical
Superintendent WRIM & Lifting at Subsea 7, the new core committee has members from Subsea 7, Heerema Marine Contractors, McDermott International, Saipem, Seaway Heavy Lifting, Technip, A2Sea and DNVGL as well as crane and rope manufacturers. The establishment of the LRMC will
undoubtedly enhance IMCA’s visibility and reputation within the international offshore industry through having in place relevant technical expertise which will provide assistance to members in the management of lifting operations. This expertise will be available to members through industry guidance on good practice, technical documentation, and international meetings, or industry forums (such as IMCA’s Wire Rope Forum). Several key publications are currently in the hands of specialist workgroups for revision and updating, such as M179 - Guidance on the use of cable laid slings and grommets; the all-important M187 - Guidelines for lifting operations (which will combine topside and subsea lifting and rigging for the first time); and new Guidance on the Selection, Safe Use and Inspection of High Performance Fibre Slings used for Engineered Lifts. Like all core activity, technical division, and geographic sector committees LRMC will thrive on input from members and the industry at large. y
Reality to the Fore Our “Reality of Rope Decay” session saw two “Experience in the field” presentations – the first by Sandy Steven of Subsea 7 on the reality of wire rope discard in which he commented: “Safety is, and must always be, our highest priority. Integrity of the product is fundamental. If that goes, we are in trouble.” Also in reference to the “high value” nature of these ropes, he stated, “I do not pay attention to a rope if its diameter is less than 60mm,” meaning that smaller diameter ropes can be treated as disposable items but larger diameter ones needed special attention. Maarten Heitling and Carlo Shiodini of Saipem then
shared their experience in the field covering a range of highly relevant topics. A workshop on “Reality of discard criteria” followed these presentations covering:
• Were the existing codes / guidelines sufficient or overly conservative against reality?
• What were the existing methods leading to discard in reality?
• Could new technology help to improve predicting actual discard?
Where Next?
Te final session in a packed and stimulating day concentrated on “Holistic assessment requirements.” Laura Lombardi of Usha Martin and Cristiano Bonetti of VisionTek gave a presentation based on detailed research on a 50mm luffing rope, which was retired from service after four years of work. Te study’s ultimate aim is the development of a rope fatigue model based on combined inspection (visual, magnetic and 3D measurement) – then to generate the predicted life of the rope remaining.
Lock of Technip then spoke on “CRMS Toolbox” before the final workshop of the day took place.
With its “Where Next?” title this looked at: • Defined actions going forward? • What had we missed? • What next for IMCA rope forums?
Te result? A range of thought provoking ideas embracing production of new guidelines and/or standards to as well as the sharing of data and better cooperation between all parties. Tese and all outcomes of the day, of which there were many, will be used to develop future Rope Forums, and also to help determine aspects of IMCAs work program. y
Chris
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SEPTEMBER-OCTOBER 2016
WIRE ROPE EXCHANGE
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