Technical Specification for Pipelay Equipment

Technical Specification for Pipelay Equipment

Technical Specification for Pipelay Equipment

Scope of Supply

1.0 Linear Pipe Tensioner / A&R Winch System

1.1 2 units 70-ton Linear Pipe Tensioner

1.2 1 unit 150-ton Abandonment & Recovery Winch

1.3 1 unit Instrument Sheave

1.4 2 units 4 X 270-Hp Hydraulic Power Unit

1.5 1 unit Remote Operator Console

2.0 Pipe Handling System

2.1 2 units Longitudinal Idle Roller, Elevating

2.2 4 units Longitudinal Driven Roller, Elevating

2.3 4 units Longitudinal Driven Roller, Fixed

2.4 1 system Transverse Chain Conveyor

2.5 2 units Transfer Vehicle

2.6 2 units Line-up Module

2.7 4 units Fixed Roller Support Units

2.8 1 unit Elevating Stern Roller Support Units

2.9 2 units 2 x 75-hp Hydraulic Power Units

2.10 1 unit Front End Control Console

2.11 2 units Local Control Panel

2.12 5 units Stinger Roller Units

Technical Specifications

1.1 70-ton Linear Pipe Tensioner

Type : 2-track Vertical

Nominal Tension : 70 tons @ 25 m/min

Drive : Hydraulic

Minimum Pipe Diameter : 6”

Maximum Pipe Diameter : 60” OD (including weight coating)

Design Coefficient of Friction: 0.45

Bottom of Pipe (BOP) : 1.85m

Track Assemblies : - Two units vertical. Each track assembly comprises twosprocket-driven trackchains fitted with track

shoes that contactthe pipe surface.

- Lower track assembly fixed, Upper track assembly moveable toprovide uniform grip.

- Upper track assembly actuated by hydraulic cylinder ormechanically-synchronized jack screws located at four columns

Control : - Local / Remote Master

- Local control for set-up in Manual mode only

Operation Modes : Manual / Auto / Standby

Manual Mode : Joystick for step-less variable speed control for pay-in / pay-out

Stand-by Mode : Fail-safe disc brakes on tracks drives come on in the event of :

- Power failure

- Loss of hydraulic pressure, preventing loss of pipe string

- Failure of both control loops

Features : - Two moulded polyurethane track pads bolted onto each v-shapedcross-tie grip pipeline

- Adjustable track pad bolting position for pipe diameters varyingfrom 6” to 60”

- Four columns guide moveable upper track assembly

- Upper Track can open up to 2.5 meters to allow subsea valvesetc to pass through tensioner

- Pipe diameter variations and irregularities are absorbed by apneumatic suspension system

- Fail-safe disc brakes on hydraulic drives for tracks

- Tension, speed and displacement monitoring

- Load cells mounted between skid and foundation on the downstreamend of the tensioner unit transmits signals back to

controllers for tension monitor and control

- Air pressure transducer transmits signals to remote operatorconsole for pneumatic pressuremonitoring

Dimensions LBH : Approximately 8.2 X 4.5 X 6.6 meters

Weight : Approximately 85 tons (reference)

1.2 150-ton (Full-drum) Abandonment & Recovery Winch

Layer Line Pull (ton) Line Speed (m/min) Wire Rope on Drum (m)

1 203 25 111

2 181 27 235

3 164 30 372

4 150 33 522

Type : Single Drum with Spur Gear driven by piston hydraulic motors

Wire Rope Capacity : 500 m X 77 mm wire rope (MBL 343 ton EIPS)

No. of Wraps per Layer : 27

Drum Dimensions : Ø 1250 mm X 2180 mm wide X Ø 2500 mm flange

Drive : Hydraulic (Rexroth / Sauer or equivalent)

Brake : Fail-safe Hydraulic-release Disc Brake on Motors

Winch Control : Local and Remote

Operating Modes : Manual / Auto Tension / Stand-by

Features : Diamond lead screw Spooling Device with horizontal and vertical rollers

Dimensions LBH : Approx. 4.2 X 4.3 X 3.1 meters (Reference)

Approximately Weight : 28 ton (Reference)

1.3 Instrument Sheave

Wire Rope Diameter : 77 mm

Orientation : Horizontal

Contact : 90 degrees

Load Pin Rating : 150 tons

Monitor : - Line Tension

- Line Speed

- Line Displacement

Dimensions LBH : Approximately 1.8 x 1.8 x 0.4 meter (reference)

Weight : Approximately 6.6 tons (reference)

1.4 4 x 270-hp Hydraulic Power Unit

Drive : Electric – 4 X 270 hp / 480V / 3ph / 60Hz / 4-pole / IP 56

Hydraulic Pump : Variable-displacement Axial Piston Closed Loop (Sauer or equivalent)

Features : - Built-in resilience with multiple pump sets

(tension is maintained atthe expense of speed in the event onepump set is down)

- Heavy-duty Open Skid

- Star Delta Start

- Reservoir Accessories

- drain, breather cap

- level sight gauge with thermometer

- oil level shutdown

- oil temperature high alarm

- suction strainer

- access manhole cover

- Relief Valve

- Pressure Gauge

- Sea-Water Cooler

- Return Filter with Clog Indicator and Bypass / Clog Switch

Dimensions LBH : Approx. 5.0 X 2.8 X 2.5 meters (reference)

Approximately Weight : 15 tons (dry) (reference)

1.5 Remote Operator Console

Controls : - Allen-Bradley or equivalent

- Full redundancy with dual PLC’s

- Failsafe monitor automatically transfers control to back-up controllerin the event active controller fails

- If both controllers fail, system goes into standby mode and brakesbecome set

Operator Interface : High-resolution Touch-Screen (100% Redundant)

Mode select : - Manual

- Automatic (constant tension)

- Stand-by

Automatic Mode : - In Auto mode, operator sets desired pipe tension (15% to 100% ofthe rated tension) which is then

maintained by the system

- Constant tension mode

- Deadband setting of up to 25% of tension set-point

- Gain adjustment

- Critical faults activates emergency stop and setting of brake

Manual mode : - operator pays in / out using a joystick on either the local ormaster console

Standby mode : - pipe string is held motionless by tensioner brakes when :

- loss of electrical power supply

- failure of both Controllers A & B

- loss of track drive power

- Brakes are automatically set under failsafe conditions

Tension Control : - Two load pins, located on the downstream end of the tensioner unit.

The signals are algebraically summed at the controller to obtain thepipe tension

- Setting the tension on the active controller also sets the sametension on the stand-by controller.

The standby controller is hencealways ready to take over command when the active controllerfails.

Squeeze Pressure : Squeeze pressure transducers measures air pressure applied to thetracks and ultimately the pipe. Squeeze pressures are displayed onboth controllers.

Tension Transfer : Automatic from Tensioner to A&R Winch during abandonment and visa-versaduring recovery

Power Unit Status : Charge and system pressures on the closed loop pump sets aremonitored for pressure loss. Indicators and alarms are located on bothcontrollers.

Alarms : Loss of charge pressure in the hydraulic circuit, motor temperature high,failsafe conditions sets off the visual &

audible alarm

Chart Recorder : Digital 3-channel recording of tensioner and A&R winch tensions, andpipeline displacement

2.1 Longitudinal Idle Roller Unit, Elevating

No. of Rollers : 2

Roller Arrangement : Vee In-Line

Roller Material : Vulcanized Polyurethane

Roller Drive : Idle

Bottom of Pipe (BOP) : 1.85m

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Pipe Joint Length : 12 m ± 1 m

Rated Pipe Joint Weight : 32 tons

Rated Conveying Speed : Not Applicable

Elevation Adjustment : Hydraulic Cylinder

Dimensions LBH : Approx. 1.2 m x 1.8 m x 1.8 m

Weight : Approximately 3 ton

2.2 Longitudinal Driven Roller Unit, Elevating

No. of Rollers : 2

Roller Arrangement : Vee In-Line

Roller Material : Vulcanized Polyurethane

Roller Drive : Hydraulic

Bottom of Pipe (BOP) : 1.85m

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Pipe Joint Length : 12 m ± 1 m

Rated Pipe Joint Weight : 32 tons

Rated Conveying Speed : 15 m/min

Elevation Adjustment : Hydraulic Cylinders

Dimensions LBH : Approximately 1.2 m x 2.0 m x 1.8 m

Weight : Approximately 3 ton

2.3 Longitudinal Driven Roller Unit, Fixed

No. of Rollers : 2

Roller Arrangement : Vee In-Line

Roller Material : Vulcanized Polyurethane

Roller Drive : Hydraulic

Bottom of Pipe (BOP) : 1.85m

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Pipe Joint Length : 12 m ± 1 m

Rated Pipe Joint Weight : 32 tons

Rated Conveying Speed : 15 m/min

Elevation Adjustment : Fixed

Dimensions LBH : Approximately 1.2 m x 2.0 m x 2.3 m

Weight : Approximately 3 ton

2.4 Transverse Chain Conveyor

Pipe Rack : Wood-lined Transverse Steel Frame

Pipe Conveyor : 2 x Transverse Roller Chain with push-roller chain attachmentssliding on Pipe Rack

Conveyor Drive : Hydraulic

Bottom of Pipe (BOP) : 1.85m

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Pipe Joint Length : 12 m ± 1 m

Rated Pipe Joint Weight : 32 tons

Rated Conveying Speed : 7.62 m/min

Features : Adjustable push-roller chain attachments

Dimensions LBH : 7.8 X 7.8 X 2.0 meter

Weight : Approximately 20 tons (excluding pipe joints on rack)

2.5 Transfer Vehicle

No. of Rollers : 2 Spin

Roller Drive : Hydraulic

Transverse Speed : 7.62m/min

Bottom of Pipe (BOP) : 1.8m (to be confirmed)

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Pipe Joint Length : 12m ± 1m

Rated Pipe Joint Weight : 32 tons

Track Length : Approximately. 8 meters

Features : - Track mounted

- Dual frame construction

- Inner frame elevated by 2 hydraulic cylinders

- hydraulic drive

- Safety bumper

Dimensions LBH : Approximately 3.2 m x 1.6 m x 2.3 m

Weight : Approximately 5 tons

2.6 Line-Up Module

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Pipe Joint Length : 12 m ± 1 m

Rated Pipe Joint Weight : 32 tons

Rated Conveying Speed : 25 m/min

Bottom of Pipe (BOP) : 1.85m

Degrees of Freedom : - 4 (X-, Y-, Z-, and pivot)

- X-Axis Longitudinal forward and backward along firing Line byendo rollers

- Y-Axis ±12 inch Horizontal Transverse by hydraulic cylinders

- Z-Axis ± 10 inch Vertical from BOP by hydraulic cylinders

- Pivot

Per Module

Number of Rollers : 2 pairs

Roller Material : Vulcanized Polyurethane

Roller Drive : Hydraulic

Features : - Proportional control

- Constant abutment force on pipe joint against stand pipe

Dimensions LBH : Approximately 3.8 m x 2.2 m x 1.8 m

Weight : Approximately 8 tons

2.7 Fixed Roller Support Units

No. of Rollers : 4 pairs in vee-formation

Roller Arrangement : Each pair arranged Vee In-Line on pivoted beam carrier

Roller Material : Vulcanized Polyurethane

Roller Drive : Idle

Bottom of Pipe (BOP) : 1.85m

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Load Capacity : 45 tons

Dimensions LBH : Approximately 2.2 m x 1.8 m x 2.2 m

Weight : Approximately 5 tons

2.8 Elevating Stern Roller Support Units

No. of Rollers : 6 pairs in vee-formation

Roller Arrangement : Each pair arranged Vee In-Line on pivoted beam carrier

Roller Material : Vulcanized Polyurethane

Roller Drive : Idle

Minimum Pipe Diameter : 6”OD

Maximum Pipe Diameter : 60”OD

Rated Loading Capacity : 75 tons

Elevation Adjustment : Hydraulic

BOP Range : 1400-1900mm (min adjustment pitch 20mm)

Features : - Hour-glass Steel Rollers on both ends of unit for A&R winchwire rope

- Corrosion protection for operation in splash zone of barge

Dimensions LBH : Approximately. 2.9 m x 2.4 m x 2.5 m

Weight: Approximately 20 tons

2.9 Hydraulic Power Unit

Drive : Electric Total 2 x 150-hip / 480V / 3ph / 60Hz / 4-pole / IP 56

Hydraulic Pump : Variable-displacement Axial Piston, Open Loop

Make : Sauer / Parker or equivalent

Displacement Control : pressure-compensated

Features : - Heavy-duty Open Skid

- Star Delta start

- Return filter with clog indicator and by-pass

- Reservoir accessories

- drain, breather cap

- level sight gauge with thermometer

- oil level low alarm / shutdown

- oil temperature high alarm

- relief valve

- pressure gauge

- air-to-oil cooler

Dimensions LBH : Approximately 3.5 m x 2.2 m x 2.3 m

Weight : Approximately 5.0 tons

2.10 Front End Control Console

Controls : - Electronic Joysticks for control of:-

- Line-up Table Motion

- Line-up Rollers

- Spin Rollers

- Spin Rollers Up / Down

- Chain Conveyors / Transfer Vehicle

- Remote Power Pack Controls

Indicators : - Digital for oil pressure

- HPU status

Dimensions LBH : Approximately 1.5 m x 0.5 m x 1.2 m

Weight : 300 kg

2.11 Local Control Panel

Controls : - Electric Joysticks / Push Buttons

- Emergency stop

Indicators : Pump on / off

Panel Rating : IP56

Dimension : Approx. 400 x 400 x 210 cm

2.12 Stinger Roller Support Units

No. of Rollers : 4 pairs in vee-formation

Roller Arrangement : Each pair arranged Vee In-Line on pivoted beam carrier

Roller Drive : Idle

Minimum Pipe Diameter : 8”OD

Maximum Pipe Diameter : 60”OD

Elevation Adjustment : Manual

Vertical Load Rating : 60 tons

Dimensions LBH : Approximately 3.0 m x 2.2 m x 2.7 m

Weight : Approximately 2.5 tons

General

Surface Preparation / Coating : Abrasive-blasted to Swedish Standard SA2½

Zinc-rich epoxy primer

Epoxy intermediate coat

Polyurethane top coat

Degree of Protection : All electrical enclosures are splash-proof