Dyneema for Modu Mooring Lines In Brazil

Press Release
Wednesday, April 27, 2011

The Netherlands, April 27, 2011 - 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 fiber was developed specifically for this type of mooring application and although it has a proven track record of success in Asia, US and European waters, the Petrobras order marks the first time they will be used for MODU mooring in Brazil.

Petrobras is expected to use eight mooring ropes made with Dyneema® SK78 fiber on a MODU in its new Pre-Salt deepwater fields off the Southeastern coast of Brazil, site of one of the largest recent oil discoveries in the Western Hemisphere. Petrobras plans to start using the ropes around mid-year.

Petrobras has chosen to use ropes made with Dyneema® over polyester because of the lower weight and greater ease of handling. Polyester ropes with the same mechanical properties weigh around three times as much and are almost twice as thick as ropes made with Dyneema®. Steel ropes would weigh around seven times more than ropes made with Dyneema® fiber. Ropes made with Dyneema® fiber will allow Petrobras to moor the MODU more quickly, saving on equipment costs, as well as on support vessels, delivering lower operating costs and a positive return on the investment.

Furthermore, ropes made with Dyneema® fiber take up half the space of those made with polyester. This is important because fewer resupply trips are required. Drilling locations in the Pre-Salt province are around 200 km offshore, and rental rates for supply ships are high.

DSM Dyneema and Petrobras worked closely together for several years on this project from fiber specification to comprehensive testing. “Petrobras tested the performance of SK78 grade from DSM Dyneema at both fiber level and in full-scale ropes,” says Jorn Boesten, Offshore Segment Manager at DSM Dyneema. “They were particularly concerned about the creep properties, and the ropes made with Dyneema® SK78 met all requirements,” he adds.

“We are delighted with this order as it is our first in the Brazilian market. Working with Petrobras, a pioneer in the use of synthetic ropes, has been a rewarding and stimulating experience for us, and we look forward to continuing this successful collaboration and developing more opportunities in South America,” says Boesten.
 

Source: Dyneema

Maritime Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Offshore

U.S. DoI Upholds 2008 Shell Arctic Lease

The U.S. Interior Department on Tuesday upheld a 2008 lease sale in the Chukchi Sea off Alaska, moving Royal Dutch Shell a step closer to returning to oil and gas

Japan, U.S. Look to Expand Naval Cooperation

Japanese Prime Minister Shinzo Abe's push to allow Tokyo to come to the aid of an ally under attack will pave the way for closer cooperation between U.S. and Japanese forces across Asia, a top U.

BP Terminates GoM Rig Contracts

BP terminated contracts for two deepwater oil drilling rigs in the Gulf of Mexico as the British oil company slashes its exploration budget due to fallen oil prices.

Communication

KVH Outlines Ship-to-Shore Connectivity

The next generation of connectivity between ship and shore will be dominated by the development of applications to help ship owners and managers reduce costs by enhancing operational efficiency,

Greece Will Sell Piraeus Port Stake in Weeks

The Greek government will sell its majority stake in the port of Piraeus within weeks, the country's deputy prime minister told China's official Xinhua news agency,

Garamendi Introduces Bipartisan GPS Backup Bill

Congressman John Garamendi (D-Fairfield, CA), the Ranking Member of the House Transportation and Infrastructure Subcommittee on the Coast Guard and Maritime Transportation,

 
 
Maritime Contracts Maritime Security Maritime Standards Navigation Pipelines Salvage Ship Repair Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2709 sec (4 req/sec)