treleborg ms-oim offshore brochure

8/10/2019 Treleborg MS-OIM Offshore Brochure

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Trelleborg Marine Systems | Takes the pressure off

Offshore Integrated Mooring


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Trelleborg Marine Systems is dedicated to makingoffshore oil and FLNG/FPSO/FSRU mooringoperations easier and safer. It is our goal to providethe best systems available to operators so vesselscan be berthed quickly and efciently. This shows

in our range of high quality products and systemsthat are designed by our own team of engineers tomeet or exceed our clients demands. Our productsare especially in demand where mooring operationsare conducted in hazardous conditions, and thequality and integrity of the equipment used cannot becompromised.

Trelleborgs approach is unique in that all systemshardware, software and rmwareare designedin-house, giving us the ability to smoothly integrate

the operations. This results in efcient, more reliableequipment that is easy to operate. Our range covers,but is not limited to:

Quick release hawser hooks

Quick release chain stoppers

Quick release hook bases with integral capstans

Load monitoring systems

Remote release systems

RTK GPS mooring and docking aids systems

Environmental and sea state monitoring

Pneumatic and foam fenders

Fender deployment systems

Hawser retrieval winches

Rope reelers

Chain Stoppers and Chain tensioners

Fairleads

Ofoading Hose Reel

With over 30 years of experience behind us,our engineers and designers have a detailed

understanding of offshore mooring and the demandsplaced on equipment and systems. Throughinnovation and technology, we have developedsystems for most mooring congurations including:

Single-point mooring

Bow-mounted hawser hooks or chain stoppers withload monitoring and remote release options

Ship-to-ship mooring

Typical arrangement may include 8 to 12 double quickrelease hooks with integral capstan, load monitoringand remote release options. Pneumatic or foamfenders, and deployment and storage system forfenders up to 4.5 x 9.0 m

Tandem mooring

A complete stern ofoading system is available: sternmounted Quick Release Hook with load monitoring,hawser and hawser reel, hose and hose reel.

Spread mooring

Multiple chain stoppers mounted at bow and sternquarters providing 12-16 mooring points with orwithout load monitoring and remote release.

Integrated mooring systems


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Quick release hooks (QRH), quick release hawserhooks (QRHH) and chain stoppers (CS) are theprimary anchor points for securing mooring lines,chafe chains and hawsers. Manufactured fromhigh-quality material to OCIMF guidelines, Trelleborg

Marine Systems hooks and stoppers have proven tobe the industry benchmark in terms of strength andreliability.

Quick Release Hawser Hooks

For FSO and FPSO, bow and stern mooring

Secure the end link of the mooring assembly or

mooring hawser eye

Capacities range up to 850 t MBL

Chain Stoppers

For FSO, FPSO bow and stern mooring or spread

mooring

Secure the common link of stud link anchor

ranging from 76 to 114 mm diameter

Capacities range up to 1150 t MBL

Optional chain tensioner

Quick Release Hooks

For FLNG FSRU ship-to-ship mooring, lightering and

offshore terminals

Secure the mooring hawser soft eye and are

generally installed in multiple-hook congurationwith an integrated capstan

Single hook capacities range from 60 t to 150 t

SWL

Design Features and Options

The following are common to all Trelleborg mooringhooks.

Positive locking to ensure the mooring unit does

not open inadvertantly when the mooring line isloaded

Can be released at any load from zero to full safe

working load

Electo-mechanical interlocks to guard against

unintended release

Load monitoring via integral load cell

Local alarms for high load warnings

Remote release system

Alternative mounting options including welding and

boltingOptional telemetry system for load monitoring and

remote release

Classication society approvals for Lloyds, DNV,

ABS, BV and RINA upon request.

Mooring units


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Trelleborg Marine Systems has addressed theshortcomings of conventional offshore GPS dockingaid systems by developing a specialised OffshoreMooring and Docking System (OMADS) that useshighly-accurate Real-time Kinematic (RTK) GPS

technology. RTK can provide a relative positionaccuracy of 2.0 cm.

OMADS consists of two major components: apermanent unit for the primary vessel and a portablecarry-on-board (COB) for the secondary vessel. Theprimary vessel unit can be a rack-mounted multi-GPS/telemetry unit with the capability of position andattitude via RTK GPS, or a single receiver/telemetryunit, where the vessels own gyro or IMU providesthe attitude indication. Survey-quality multi frequencyantennas are installed at pre-determined locationsaround the superstructure.

The primary vessel communicates with the secondaryvessel system via a UHF telemetry link which has arange of many nautical miles.

The COB is taken onboard the secondary vesseland set up before the approach begins. It consistsof a self-contained, battery-powered system ttedwith dual RTK GPS receivers/antennas and UHFtelemetry. It has Wi-Fi 802.11g for communications

with the laptop that is used to present the approachto the pilot or master. An integrated bre-optic, highresolution gyro provides accurate rate of turn inaddition to the heading and position calculated by theGPS system.

Offshore mooring and docking system

An optional handheld display is available for use onthe vessel wing during docking.

During the approach and docking, the OMADSsoftware interprets the relative position informationfrom the RTK GPS and displays it on both theprimary and secondary vessel units in 2D or 3Drepresentation, and as a numeric display. Thisenables the pilot or master to evaluate the progress

of the manoeuvre and make adjustments accordingly.

3D representation provides better denition of thevessels relative positions.


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Hawser load monitoring is especially critical whenvessels are moored via a single-point mooring (SPM)arrangement to a CALM buoy or similar offshoreloading arrangement. Trelleborg Marine Systemsmanufactures load monitoring systems to alert vessel

masters in the event the hawser tension becomestoo high or too low, enabling them to make a decisionabout the safety of the mooring.

Load cells installed in one or more of the buoyconnector-plate pins provide real-time measurements.Warnings of low, near high or high-high loads aregiven via a light and siren installed on the buoy and/or through telemetry to remote monitors. This may bea portable monitor on the vessel or a base stationmonitor at the facility. The system can be conguredfor either single- or dual-leg hawsers and may beretro-tted to an existing assembly.

Other options that can be integrated with the SPMload monitoring systems include:

Navigational aid operation and status

Product pressure and ow monitoring

GPS relative positioning between the vessel and

the buoy

SPM load monitoring system

Buoy-mounted Equipment

Load cell: installed in the tri-plate or pad eye, tsmost styles of new and existing CALM buoys.

Controller: contains the microprocessor, load cellinterface, data logger and telemetry equipment. Thecontroller is located on the deck within an explosion-proof enclosure and double sealed within an outerstainless steel enclosure that ensures the controlleris completely protected against the harsh environment

Telemetry: Trelleborg telemetry systems have areputation for reliability spanning 20 years. Hawser

loads and alarms are transmitted over telemetry inreal-time to portable pagers on the vessel or xedworkstations onshore. The telemetry is UHF bandand incorporates inputs for the load cells, batterymonitoring and options such as line pressure,navigation beacon photocell, anenometers andtemperature and humidity sensors.

Power supply: to operate the buoy equipment is fromdeep-cycle batteries, which may be charged fromoptional solar panels. The power is controlled by amicroprocessor to enable automatic load-sheddingand temperature compensation and to monitor thecharge status. The base station can interrogate thepower status remotely.


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Fenders and fender deploymentAs part of the complete offshore mooring package,Trelleborg Marine Systems supplies both pneumaticand foam-lled fenders and a davit system system fordeployment and storage. Fenders are used to provideseparation between vessels moored ship-to-ship

(STS) and to protect against impact when mooringand unmooring. Trelleborg can supply primary andsecondary fenders of both the pneumatic and foam-lled types.

Trelleborg Pneumatic Fenders

Leveraging over 100 years of experience in rubbertechnology, Trelleborg produces pneumatic fenders ofthe highest quality. Tough and resilient, they exert verylow pressure on the vessels hulls whilst maintaininglarge clearances in STS mooring. They are made inboth standard and high-pressure types in a wide rangeof sizes with the larger sizes most commonly ttedwith a chain tyre net for increased protection.

SeaCushion Foam-lled Fenders

SeaCushion fenders are designed for hard work. Thesuperior grade of foam core, extra-tough skin andchain tyre net make them the most rugged oatingfender on the market. SeaCushions are thereforeperfect for demanding operations such as open-waterSTS mooring, offshore structures, shipyards andmilitary terminals. Foam-lled fenders will not deateor burst, which makes them virtually unsinkable, andabsolutely reliable. With hull pressures and reactionpressures less than that of pneumatic fenders,SeaCushions are also one of the most efcientfenders available.

Fender Deployment System

Trelleborgs fender deployment system(FDS) is a complete system to deploy,retrieve and store fenders for usein ship-to-ship (STS) mooring

applications. The system hasbeen designed to suit either theTrelleborg pneumatic fenders orTrelleborg Sea Cushion foam-lledfenders.

The FDS has high levels of structural and electro-mechanical reliablity for the new generation ofFPSO and FLNG vessels. A typical system mayinclude four to six primary fender davits, two ormore secondary fender davits, a local davit controlconsole and an electro-hydraulic power unit to

provide system pressure and owto operate davits individually or

simultaneously. Davits canbe operated individuallyor simultaneously andan optional heavecompensation systemis available. The FDS iscompact enough to be

installed between the LNGtanks and the vessel hull.


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Trelleborg Marine Systems developed both vertical and horizontalhawser winches in response to demand for a better systemof handling tandem mooring hawsers. This innovative solutiondelivers new efciencies for FSO operators. It provides a method ofdeploying, retrieving and storing the hawser chafe chain assembly

and reduces hawser damage since the hawser is stored on thewinch rather than left oating in the sea or stored loosely on thedeck.

Vertical Hawser Retrieval Winch

Deployment time is reduced because the winch has an integratedquick release hawser hook, so the hawser is always connected. Thehawser is paid out and connected to the shuttle vessel withoutany need to handle the chafe chain at the F(P)SO. The verticalformat has a smaller deck footprint than equivalent horizontalwinches and minimal strengthening is needed for theunit to be installed.

A typical installation would include:

Winch with built-in hawser guide rail

Local control console with joystick controller

Hydraulic power pack

Remote display unit for displaying load alarms,

hook status and load monitoring, and for triggeringthe emergency release function

Horizontal Retrieval Winches

Trelleborg manufactures two types of horizontal winch:single-drum and sectional-drum. On both, the hawserhook is installed on an independent mounting, but isdesigned to work with the winch to provide a completesolution for deploying and securing the mooring.

With a single-drum winch, the chafe chains and chainbuoy are stored outboard of the chock. By attachingthe pick-up rope half way along the hawser, the hawsercan be doubled over and winched on board. The chainand buoy are left outboard and ready for the nexthawser deployment.

Sectional drum winches are supplied with a three- orfour-section drum that provides separate storage forthe chafe chains, hawser and pick-up rope.

Hawser retrieval winches


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Takes the pressure offTrelleborg Marine Systems

www.trelleborg.com/marine

Trelleborg Marine Systems MelbourneOffshore Integraded Mooring Group Tel: +61 3 9575 [email protected]

Docking & Mooring Group EuropeTel: +46 708 551 [email protected]

Docking & Mooring Group USATel: +1 720 299 [email protected]

Trelleborg Marine Systems developed anhose reel for Tandem Ofoading Operationto provide a complete ofoading system(i.e. Quick Release Hawser Hook with LoadMonitoring, Hawser and Hawser Reel, Hose

and Hose Reel. This approach offers FPSOcontractors and owners an IntegradedOfoading System from a single source,limiting the risk of integration issues.

A typical solution offers:

Up to 340m of 20 Hose Drum Storage

Compact size

Spooling Device

Common HPU for Hawser and Hose Reel

Access Platforms for easy maintenance

Emergency Reel Drive

Hose Load monitoring

Designed to OCIMF Guidelines and

classication society rules

Common control panel for Hose Reel,

Hawser Reel and Hawser Hook.

Hose Reel for Tandem Ofoading

treleborg ms-oim offshore brochure

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