2016 OTC獲獎技術 — LankoDeep 軟繩系統

Lankhorst Ropes has announced Lanko?Deep AHC; the rope is an integral part of a new Soft Rope system capable of handling heavy loads at depths of well over three kilometres.

Through its dedicated research and development teams and co-operation with DSM Dyneema, Lankhorst has developed Lanko?deep AHC (Active Heave Compensation) rope, which incorporates fully optimised cyclic bending over sheave (CBOS) fatigue and load bearing characteristics for use in the deepwater deployment systems.

Lanko?Deep AHC is based on Dyneema? DM20 XBO synthetic filament optimised for cyclic bending with a proprietary rope coating technology.? “The new rope has 12 stranded braids where each strand is a three-strand rope,” explains Sérgio Leite, Sales Director, Heavy Lift, Lankhorst Ropes. “This construction, combined with the DM20’s XBO coating, helps reduce the tension required to bed-in the rope, as well as reducing internal heating and abrasion. In addition, the rope can be inspected and is also repairable, it is an innovative solution for deepwater deployment.”

The other element of the Soft Rope system is a Deep Tek Drum Winch with multi-layer chevron spooling. This revolutionary drum winch system can be installed in offshore cranes.

The design and integration of the Soft Rope system is entirely function-based, in accordance with the underlying principles of DNVGL Offshore standard, DNV-OS-E407, Underwater Deployment & Recovery Systems and DNVGL Recommended Practice for Technology Qualification, DNV-RP-A203, Qualification Procedures for New Technology.

The innovative patented drum winch design ensures a spooling pattern that allows multiple layers of fibre rope to be spooled onto a load bearing winch drum with no risk of cutting in. It is certified by DNV-GL at 110Te in air and 110Te at 3,000m water depth. Larger Soft Rope systems capable of handling 165Te and 275Te are in development.

The design and integration of the Soft Rope system is entirely function-based, in accordance with the underlying principles of DNVGL Offshore standard, DNV-OS-E407, Underwater Deployment & Recovery Systems and DNVGL Recommended Practice for Technology Qualification, DNV-RP-A203, Qualification Procedures for New Technology.

Sérgio Leite, Sales Director, Lankhorst Ropes Offshore commented “ Lankhorst Ropes has a long history of rope innovation. To be part of another award winning innovation is a great achievement for Lankhorst. As the Oil & Gas industry had shown the desire to work at greater depths than possible with steel wire ropes, the challenge was to provide a synthetic rope that could. Lankhorst’s Lanko?Deep AHC rope makes operating at over 3,000m possible”.

Lanko?Deep

The 3-strand fibre rope is neutrally buoyant in water compared with the far higher, self-weight of steel wire rope and provides the optimal balance of load-bearing capacity and flexibility of bending over sheave.

The innovative Lanko?Deep AHC design ensures the minimal number of cross-over points and thus reduces the opportunity for internal abrasion. The open structure of the rope makes it especially easy to splice, inspect and repair. In addition, the rope’s special Dyneema fibre grade reduces the tension required for bedding in the rope, as well as reducing internal heating and abrasion.