Helicoid Sleeve Brochure - Giles Engineering Consultancy Limited

Full Composite Epoxy Sleeve
Designed For The Strengthening
And Protection Of Pipelines
• Technologically advanced
• Online Installation
• Cost effective
• Verified as per ASME PCC-2
Combining the Best of both Epoxy
Sleeve Repairs and Composite
Wrapping Techniques
The Helicoid Epoxy Sleeve ™ is a helically wound, carbon fibre
reinforced, mechanically interlocking PE or PTFE strip, allowing an
annulus of approximately 25 to 40 mm around the pipe to be filled
with an epoxy or cementatious grout, therewith giving outstanding strengthening and protection qualities
Benefits Of Helicoid
Epoxy Sleeve TM
 Pre-engineered
 Off-the-shelf
 Diameters between 150mm to 600mm
The Helicoid Epoxy Sleeve™ has been designed, tested and certified in accordance with the ASME PCC-2 and is an approved repair
system under the ASME 31.4 and ASME 31.8
 Length up to 10.0m
The sleeve can be installed to risers, up to 3.0 m below MSL,
completely diverless, in diameters between 150 mm to 600 mm
and up to a length of 10.0 m in one single application, without the
shut down of the facilities
 Above water and subsea installation
 For strengthening and protection
 On-line installation
 Diverless riser installation
 Corrosion resistant
 Impact resistant
 Temperatures up to 120 degrees Celsius
 Easy and fast installation
 Durable
 Marine growth resistant
SECTIONAL CUT OUT DETAIL
 Cost effective
 Multiple sleeves to accommodate
extended length
Polyamide End Cap
 Independent third party verification
by Lloyd’s Register and tested in accodance with ASME PCC-2
“Repair of Pressure Equipment and Piping”
Interlocking PE
or PTFE Sleeve
Grout Fill
Carbon Fibre
Reinforcement
FULL COMPOSITE EPOXY SLEEVE DESIGNED FOR THE
STRENGTHENING AND PROTECTION OF RISERS AND SUB SEA
PIPELINES
HELICOID Epoxy Sleeve TM
Technology that is simply the best
Typical Installation Sequence on Riser
( Riser Splash Zone Area )
Main Characteristics
1. Installation of winding cage
2. Insertion of Polyethylene strip to
commence winding of sleeve
3. Attachment of polyamide caps,
4. Sleeve is wound to full
required length
5. Injection of epoxy grout
6. Helicoid sleeve repair complete
Reinforcement properties
 Fibre nature : Carbon fiber, Torayca T700 SC
 Fibre direction: uni-directional, pultruded
 Density: 1,750 kg/m3
 Tensile Strength (ASTM D 3039): 1,880 N/mm2
 Young’s Modulus (ASTM D 3039): 141,000 N/mm2
 Poisson’s Ratio (ASTM D 3039): 0.34
 Flexural Strength (ASTM D 790): 1,480 N/mm2
 Flexural Modulus (ASTM D 790): 80,000
 Shear Modulus (ASTM D 5379): 75.46 N/mm2
 Coefficient of Thermal Expansion (ASTM E 831):
-5.0 x 10-5 mm/mm/oC
 Glass Transition Temperature (ASTM D 3418): 121oC
Grout Properties
 Chemical family : Epoxy
 Compressive Strength (ASTM C 579): 99.3 N/mm2
 Flexural Strength (ASTM C 580): 33.9 N/mm2
 Modulus of Elasticity (ASTM C 580): 8,951 N/mm2
 Bond Strength to Steel (UW) (ASTM D 4541) > 10.8 N/mm2
 Lap Shear Strength to Steel (ASTM D 3165): 7.1 N/mm2
 Heat Deflection Temperature (ASTM D 648): 116oC
Typical Installation Sequence
on Sub Sea Pipeline
 Water Absorption (ASTM C 413-01): 0.18 %
 Linear Coefficient of Thermal Expansion (ASTM C 531):
2.3 x 10-3/oC
PE Strip Properties
 Tensile Strength ( ASTM D 638) : 28 N/mm2
 Flexural Modulus (ASTM D 790): 1,400 N/mm2
 Izod Impact (ASTM D 256): 0.07 Joules/mm of Notch
 Heat Deflection Temperature (ASTM D 648) :
(@ 0.5N/mm2) : 78 degrees C
1. Installation of winding cage
2. Winding of sleeve continued to full
required length
3. Epoxy grout injection procedure
4. Cut out shows epoxy grout injection
into sleeve annulus
5. Helicoid sleeve repair complete
6. Sleeve repair procedure repeated
along pipeline as required
 Water Vapour Transmission Rate (ASTM E96):
0.0004 g/h/m2
 Linear Coefficient of Thermal Expansion (ASTM D 696):
3.85 x 10-5 /oC
Surface Preparation Of Riser
As part of the installation of the sleeve, a system has been developed for the removal of marine growth,
neoprene liners and coatings of up to 3.00 m below MSL, without the intervention of divers
The lightweight, modular equipment can be installed by a crew of 2 technicians and is capable of achieving
surface cleanliness of up to Swedish Standard SA 2.5 by means of high pressure water - and abrasive blasting
The level of cleanliness can be monitored from the top deck through attached CCTV cameras
Preliminary Riser Surface Preparation
1. Installation of riser cleaning equipment
3. Cleaning of riser below water to required
depth
2. Surface preparation of riser
3. Cleaning of riser above water to required
depth
5. Cleaning under water
6. Completion of surface preparation
YOUR ASSURANCE IN STRENGTH
AND PROTECTION
Lloyd's Register’s test certificates can
be made available upon request
Simply The Best Pipeline
Strengthening &
Protection System
Merit Technologies Sdn Bhd
(comp. no.655607-U)
No.8, Jalan PJU 3/45,
Sunway Damansara Technology Park,
47810, Petaling Jaya,
Selangor Darul Ehsan,
Malaysia
Tel: + 60 3 7805 3811
Fax: + 60 3 7805 4811
email: info@merit.net.my
www.helicoid.com.my