Brazilian oil giant Petrobras has specified ultra strong, lightweight Dyneema fibers for a complete set of mooring ropes for a semi-submersible mobile offshore drilling unit (MODU). Headquartered in Rio de Janeiro, Petrobras has substantial interests in deepwater exploration. Petrobras specifically asked for the ropes to be made with SK78 grade of UHMWPE (ultra high molecular weight polyethylene) fibers from DSM Dyneema for its high strength at low weight properties. SK78 grade…