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Intelligently Connected Pipe
S-Lay Installation
Using the patented GMC Mechanical Connector, installation operations can be
optimised for both S-lay and J-lay installations offshore.
Experience where it counts.
Innovation where it matters.
GMC Mechanical Connector Key Features:
• Binary concentrically grooved connector
• Multiple metal-to-metal nib seals
• ID & OD preloaded contact shoulder
• Highly fatigue resistant (=DNV B1)
• Excellent torsional slip resistance
• Unlimited fast make-break cycles
• Wide range of sizes (6¨to 48¨)
DNV ISO21329 ‘Statement of Conformity’ HOU-01-SC-42039783
The GMC Mechanical Connector is the core technology behind GMC’s Intelligently
Connected Pipe (ICP), which delivers a more robust pipeline, whilst simplifying and
reducing installation costs.
ICP allows the time consuming joining operation to be performed onshore, off the
critical path. During offshore operations, only the fast coupling of the male and
female connector is performed by a single connector station.
As a result, with better planning and with more efficient technology, the offshore
installation contractor can effectively reduce the stand-by time and the actual
operation time of the installation vessel and personnel.
BARGE BPZ-01 S-LAY CONCEPT
Since 1990
ICP Installation: Barge BPZ-01 S-Lay Concept
Barge bpz-01 Vessel Key Features
Length o.a. :
73.16 m
Breath”
21.95 m
Depth:
4.69 m
Max Draught:
3.91 m
Deck Capacity:
32 T / m2
1000 m2 Free Deck Cargo
Accommodation: 53 Persons
Gross Tonnage (GT):1916
Net Tonnage (NT): 574
Winches:
2 x Skagit RB 90W PR 3 Drums
Generator:
1 x Cummins 240 Watts
Anchors:
6 x Standard Anchor 15,000 lbs (8.2 T)
Anchor Cable:
Diameter 1 ½”
Length 2500 ft
S-Lay Option General Arrangement
PIPELAY CYCLE
• Vessel crane loads triple joint onto firing
line roller boxes
• Crane rigging removed
• Powered rollers engage triple joint with
catenary connector
• Connection tool engaged and joint made
• Make up tool disengaged
• Clear connection station area
• Release collar clamp and pipe out pipeline
using A & R system, whilst simultaneously
moving vessel
MODULAR EQUIPMENT
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150 MT Connection Station
150 MT A&R Winch &
Pop-up Turning Sheave
19 m Stinger System
1 x Triple Joint Pipe Rack
1 x Triple Joint Walking Beam
9 x Driven Elevating Roller Boxes
1 X HPU
ICP Installation: Barge BPZ-01 S-Lay Concept
ICP Connection Station
A compensated connection station is required to mechanically connect the ICP joints. This is a
development of an existing tool used for riser installation, and is installed towards the stern of the
vessel. In operation, the pipe string is retained by a collar clamp that engages with a groove on the
female connector at the end of the pipeline. A male end of a second pipe joint is then engaged with the
clamped joint and a hydraulic tool used to make the mechanical connection.
The connector station is mounted on rails with hydraulic cylinders with an accumulator pack to
compensate for vessel motions . It compensates for acceleration and deceleration differences between
the vessel & pipe maintaining the back tension at a sufficient level. Hence, reduce the uncontrolled
load due to displacement at the surface, maintain load through the sagbend and reduce induced loads
at the seabed touchdown point. An accumulator pack (separate unit) is connected to the cylinder by
means of hydraulic piping. A position sensor is connected to the trolley to measure the position of the
trolley.
Outline Specification
Up to 12¨OD Pipe
L x W x H: 7.3 m x 2 m x 2 m
600 kW Power
Environmental (Temperature: -10° - 45°C, Humidity: 0 to 95%)
Maritime (saline), direct exposure to sunlight & rain
Modular Containerised System – control includes Motion Reference Unit
Connector System
Opening suitable for 1M OD inline sleds
250 MT mechanical connector clamp load, and 8,000 psi injection pressure
Compensation System
150 MT Passive Heave capacity
8 -16s Period
Max min +/- 2.5m heave comp in a linear direction
Speed Paying In 30 (m/min)
Speed Paying Out 36 (m/min)
Battery of accumulators based on Nitrogen
Nitrogen generator included
A&R Winch System
An A & R winch is required to deploy the pipeline with a maximum capacity
of 150Mt. The winch will be connected to the pipe via a pop up clamp and an
internal pipe clamp, similar to that illustrated.
150 MT A&R winch
500 m of 77 mm diameter wire rope
150 MT 180° turning sheave
150 MT internal pipe clamp including sealant
GMC ICP Installation: Barege BPZ-01 S-Lay Concept
PRIMARY STINGER SYSTEM
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19 m Stinger plus 6 Roller Boxes
70 MT Stinger Winch
A-Frame
Barge Frame
Pendants
PIPELAY PARAMETERS
ICP Product Range
Sizes
Material / Grade Options
Nominal Size*
O.D.
API
X65
API
T95
API
P110
API
Q125
6 inch
168 mm
7
7
7
7
8 inch
219 mm
7
7
7
7
10 inch
273 mm
7
7
7
7
12 inch
324 mm
7
7
7
7
14 inch
356 mm
7
7
7
7
*Custom sizes available on request
ICP Coating Options
External Coatings
Pipe Diameters
6”
8”
10”
12”
14”
3-layer
Polyethylene
7
7
7
7
7
3-layer
Polypropylene
7
7
7
7
7
Fusion Bonded
Epoxy (FBE)
7
7
7
7
7
Dual Layer FBE
7
7
7
7
7
• Onshore pre-bonded triple
joints
• Max lay tension 150 MT
• Lay ≤10¨pipe, ≤150 m water
depths
• Can lay 12” pipe in shallow
water depths
• Various coating options
7
7
7
7
+44 (0)118 945 0320
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GMC Inc
738 Hwy 6 South
Suite 900
Houston, TX 77079
United States
Internal Coatings
Inconel Mechanical
Cladding
GMC Limited
100 Longwater Ave
Reading, RG2 6GP
United Kingdom
7
+1 832.300.1480
ABOUT GMC
GMC is an industry leader in innovative engineering, project management, and installation solutions and
products, from the seabed to the surface, for offshore oil and gas SURF, drilling, and production projects.
Established in 1990, GMC has offices in the UK and USA.
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[email protected]
www.gmcltd.net
GMC Limited © 2014 | All Rights Reserved
04/14

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