Marine link


Lifetime Assessment for Deepwater Moorings

Photo: SBM Offshore

Mooring integrity is an important concern in the offshore industry [1]. Mooring leg failures can have  significant consequences, such as temporary shutdowns and require unplanned, thus expensive, repairs. On the other hand, an over dimensioned design leads to higher loads acting on the floating facilities and a large investment.   Meanwhile, the development of deepwater projects has led to the discovery of the new fatigue mechanism of ‘Out of Plane Bending’ [2]. This means that the design of moorings requires more detailed analysis to ensure the integrity of the mooring system.   Mooring lines very much behave in a non-linear way. This is the result of, for example, the lifting of the mooring line from the seabed and the loads from the flow around the mooring line. A spectral fatigue assessment is not capable of fully incorporating these effects. A time-domain approach is a more accurate methodology to assess fatigue lifetime.   At MARIN the in-house developed tool aNySIM XMF is used for the time-domain fatigue assessment of deepwater floaters. aNySIM defines mooring lines as a combination of chains, wire ropes and/or synthetic ropes The mooring lines are described using a lumped-mass model, which includes the inertia of the mooring lines, as well as local forces, such as drag acting on the moorings

MTNW Supports Frontier Drilling

Photo courtesy Measurement Technology NW

Measurement Technology NW (MTNW) has recently completed a contract to provide installation, calibration and commissioning on an eight-point mooring monitoring system for Frontier’s drill ship, Duchess, off the coast of Nigeria. The new running line tensiometer and LCI-90 mooring monitoring system provides visibility into line tensions which will support mooring and rig movement monitoring. The Duchess is a 475 ft by 75 ft vessel which needs to stay centered over an offshore oil-well

BP, CSO Aker Marine Team For Unique GOM Installation

CSO Aker Marine Contractors, Inc. (CAMC), one of the Houston-based entities of the Coflexip Stena Offshore Group, announced the successful mooring of Diamond Offshore's rig the Ocean Confidence using a preset taut leg mooring with polyester rope and CAMC's SEPLA anchoring system while under contract to BP. The mooring location is in the Gulf of Mexico in 6,385 ft. (1,946 m). The project represents a significant advancement in deepwater mooring.

Cargotec Secures Vietnamese Pipelayer with Mooring Solutions

A contract for mooring equipment for a pipelaying barge marks Cargotec’s successful entry to the Vietnamese offshore market. In July this year, Cargotec won a contract from the joint stock company Vinh Nam (VAM JSC)/TECMACH  to supply mooring equipment outfits for Vietsovpetro’s 110m-long by 30.5m-breadth pipelaying crane barge, Con Son. The 1969-built vessel is currently undergoing a conversion at Dung Quat Shipbuilding Industry Co Ltd.

Lankhorst Ropes Announces Cut-Resistant Jacket Research Project

Lankhorst Cut-Resistant Jacket (Photo: Lankhorst)

Lankhorst Ropes Offshore Division is undertaking a research project into the development of cut resistant jackets for mooring ropes in the Norwegian and Barents Seas. The project will be used to assess materials needed to reduce the effects of fishing trawler lines on synthetic fiber mooring lines. Deepwater moorings, beyond 800m, in the Norwegian and Barents Seas are subject to extreme weather and wave conditions. The synthetic mooring ropes must provide high abrasion resistance and be

Automated Mooring Systems Order for Cavotec

Cavotec wins order to supply 18 MoorMaster automated mooring units for a Mediterranean Sea port. MoorMaster is a vacuum-based automated mooring technology that eliminates the need for conventional mooring lines. Remote controlled vacuum pads recessed in, or mounted on, the quayside, moor and release vessels in seconds. Under the terms of the contract, Cavotec will engineer, manufacture, install and commission 18 MoorMaster MM200C units

Aker Kvaerner to Deliver Pusnes Mooring Equipment

Aker Kvaerner has been awarded a contract for delivery of mooring winches and fairleads for Statoil's Gjøa Semi. The total contract value for Aker Kvaerner. The work will be undertaken by the Aker Kvaerner subsidiary, Aker Kvaerner Pusnes in Arendal. The contract involves supply of on-vessel mooring equipment for Statoils Gjøa Semi to be installed at the Gjøa field in the North Sea. The equipment, Roller Ram Winches and Fairleads for chain are to be delivered and installed at Aker

New Offshore Equipment Contracts for Maritime Pusnes

The Aker Kvaerner subsidiary, Maritime Pusnes, has had a busy start to the new year winning contracts for over NOK 180 million. The contracts involve both marine and offshore equipment demonstrating MP's strength in both these market sectors. The contract awards comprise: Two contracts to supply mooring and riser pull-in equipment for a Floating Production, Storage and Offloading (FPSO) vessel that will be located off the coast of Angola

InterMoor Opens New Mooring Equipment Yard

InterMoor Singapore Yard.jpg

InterMoor, an Acteon company, has opened its new mooring equipment yard at Loyang offshore supply base in Singapore.   The new facility provides mooring equipment storage and an ideal support location for maintenance, preparation and mobilization. Allowing easier access, this purpose-built yard will meet customers’ needs better and will provide a safer working environment for InterMoor staff. It will play a pivotal role in the company’s development plans for South East

GM Deep Sea Mooring Secures Det Norske Oljeselskap Contract

Deep Sea Mooring Will Supply Mooring Equipment Services To Safe Zephyrus Semi-Submersible Accommodation Vessel (Photo: Global Maritime)

Global Maritime Deep Sea Mooring, a provider of offshore mooring services in Norway, has signed a contract with Norwegian operator Det norske oljeselskap to support Prosafe’s semi-submersible Safe Zephyrus accommodation rig in the Ivar Aasen North Sea field. The contract also includes support to the Maersk Interceptor ultra-harsh environment jack-up rig.   Deep Sea Mooring, which has already installed the pre-lay system

Why Do Accidents Happen in Oil Industry?

Photo: DNV GL

 As the oil and gas industry strives for cost effective execution in projects and operations while maintaining a high focus on safety and environmental footprint, innovative and smart solutions are needed more than ever.    By extracting data and knowledge from all the detailed

ACE Winches Introduces New 500te Linear Winch

Photo: ACE Winches

At this year’s Offshore Energy exhibition, global deck machinery specialist ACE Winches announced a new 500te Linear Winch to its range of specialized deck equipment. The company will showcase its range of products and services supplied to European clients operating within marine

Edison Chouest to Build 13 Damen Tugs

Image: Damen

Marine transportation provider and the United States’ largest operator of OSVs, Edison Chouest Offshore (ECO), has teamed up with Damen to build 13 heavy duty mooring assistance and escort tugs. The vessels will be built in the U.S. using ECO’s network of five shipyards with support

Keppel to deliver third FPSO for Shapoorji Pallonji, Bumi Armada JV

Bumi Armada Courtesy Bumi Armada

Keppel Offshore & Marine's (Keppel O&M) wholly-owned subsidiary Keppel Shipyard Ltd (Keppel Shipyard) is on track to deliver a Floating Production Storage and Offloading (FPSO) vessel to Armada Madura EPC Limited (Armada Madura), a joint venture between Shapoorji Pallonji Group (Shapoorji

This Day In Naval History: August 8

USS Fort McHenry (LSD 43) (U.S. Navy photo)

1860 - Screw frigate USS San Jacinto, commanded by Capt. William M. Armstrong, captures the American slaver Storm King with 619 slaves on board, off the Congo River. A prize crew from the steam frigate sailed the captured slaver to Monrovia and turned 616 freed Negroes over to the United States

Big Tankers' Need for Retrofit Slows Use of New Panama Canal

Photo: Panama Canal Authority

The promise that some oil traders and brokers saw for an expanded Panama Canal to become a new route for large tankers will take longer to realize than expected because many ships must first undergo inconvenient retrofits to transit through the new locks, shipping industry experts said.  

This Day In Naval History: August 25

1864 - CSS Tallahassee, commanded by Cmdr. John Taylor Wood, returns to Wilmington, N.C. to refuel on coal. During her more than two week raid, CSS Tallahassee destroys 26 vessels and captures seven others.   1927 - USS Los Angeles (ZR 3) rises to a near-vertical position due to the sudden

Danish Maritime Authority Supports Maritime Cultural Days

’POUL LØWENØRN’ will be alongside in Korsør in connection with the Maritime Cultural Days

The Danish Maritime Authority's buoy tender ’POUL LØWENØRN’ will be alongside in Korsør in connection with the Maritime Cultural Days. The vessel will be open to visitors throughout Saturday, 27 August. Safety of navigation is at the centre of the Maritime

Global Maritime Completes Njord A Disconnection and Tow to Shore

Photo courtesy of Global Maritime

Global Maritime Consultancy & Engineering, a provider of marine warranty, dynamic positioning and engineering services to the offshore sector, has successfully led the disconnection and towing operations of the Njord A semi-submersible floating production platform from the Njord field

Fishing Vessel Burns up in Maine

Coast Guard Petty Officer 3rd Class Cory Langston fights the boat fire from the Coast Guard 29-foot response boat in Hopkins Point Marina in Jonesport, Maine on Thursday, Sept. 8, 2016. The was no one aboard at the time of the fire. (U.S. Coast Guard photo by Stephanie Horvat)

A boat fire was extinguished Thursday off the coast of Jonesport, Maine. The was no one aboard at the time of the fire.   At about 6:12 a.m., watchstanders at U.S. Coast Guard Sector Northern New England received a call from the owner, who was on shore

MN100: Schoellhorn-Albrecht Machine Co., Inc.

(Image: Schoellhorn-Albrecht Machine Co., Inc.)

The Company: Schoellhorn-Albrecht is an industry leader in the design and manufacture of Mooring Equipment and Systems including Capstans, Anchor Windlasses, Deck Fittings and Vessel Access Systems. In addition to standard products, the firm specializes in designing and manufacturing castings

ICS Pilotage, Towing and Mooring Survey 2016 Now Underway

Photo:  International Chamber of Shipping

 The role of the pilot in mitigating the potential economic and environmental risk from today's large vessels is one of the most important in maritime safety.    In recognition of this, the International Chamber of Shipping (ICS) has embarked upon its first comprehensive survey of

Striking Bollard Pull Results for ALP Striker

ALP Striker performed an impressive and most satisfactorily bollard pull test

ALP Striker achieved an impressive and most satisfactory bollard pull results of 309.6 tonnes during her sea trials. The DP II Anchor Handling Salvage Tug was delivered on 12 September to ALP Maritime Services. The vessel is designed for towing very large floating objects while also offering

Rolls-Royce to Equip Five New Cruise Ships

Promas System (Photo: Rolls-Royce)

Rolls-Royce has announced a new deal to provide propulsion and deck machinery to five cruise ships being built by Fincantieri at their Monfalcone and Ancona Shipyards in Italy.   The firm orders are to supply a Promas system, deck machinery and steering gear to two vessels being built

Palfinger Wins Deck Equipment Package

Illustration of Havyard 832 MPV, where Palfinger Marine will deliver and extensive deck equipment package of cranes, winches and offshore equipment. (Copyright: Palfinger Marine GmbH, Havyard Group)

Palfinger Marine signed a contract with Turkish shipyard Cemre to supply a deck equipment package to a Havyard 832 MPV vessel being built for Esvagt. The package from Palfinger consists of cranes, winches and offshore equipment. The MPV will measure 81.9 x 17.16 m, with a  deck area of 620 sq

rss feeds | archive | privacy | history | articles | contributors | top news | contact us | about us | copyright