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| Revêtement de Joints |
| REVETEMENT DE JOINTS ( RJ ) (F) is a SOMICO subsidiary
,founded in 1995 for the coating and the protection of pipeline joints, in Joint Venture
with P.I.H. (GB ). PIPELINE INDUCTION HEAT LTD ( P.I.H. ) ( GB ) is CRC – EVANS’s ( USA ) specialised subsidiary which has settled a know-how and innovating equipment for the coating and the protection of pipeline joints. RJ, on SOMICO’s assistance and logistic support basis, realised jobs in Joint Venture with P.I.H. since January 1995. For Revêtement de Joints's realisations click here |
Surface Preparation |
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| High quality surface
cleaning of pipeline field joints for the successfull of any coating system. The automatic equipment has been developed to overcome inconsistencies in surface cleanliness and profile, which are features of manually prepared surfaces. These system have been carefully engineered to meet the needs of laybarge operators and reelship spoolbase facilities, where lack of access an enclosed work area and rapid cycle times are important design criteria. The machines offer 'closed cycle' operation to prevent any possible contamination within the workstation area, pipe conveyor or tensioner systems. |
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| Closed Cycle
Abrasive Blasting System This system prepares field joints in accordance with the ISO 8501: 1 standard , Grade Sa 2.5 (near white metal finish), incorporating a 50 to 100 micron peak-to-trough 'anchor' profile. A re-usable abrasive grit is first propelled against the surface of the pipe, before being recovered using a vaccum system. Dust, oil and debris is automatically filtered-out before the abrasive is re-cycled. |
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The
Automatic Wire Brush Machine This machine was engineered to overcome persistent quality and cycle-time problems, associated with manual wire-brush cleaning techniques for offshore pipelay. In common with other equipment, This machine incorporates a hinged-design to ensure fast location on/off the pipe. The unit rotates around the pipe using a reciprocating action and reciprorating traversing wire-brushing heads. Surface cleaning is routinely achieved, to meet ISO 8501: 1 standard, Grade St3, with rapid cycle times. It's design incorporates many operator safety features and an integral dust extraction system. |
Fusion Boned Epoxy Powder Coating |
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| Fusion Boned Epoxy (FBE) coatings have dominated the pipeline industry, offering over 20 years of proven operational performance on several hundred thousand kilometers of oil, gas and product pipelines. This thermo setting powder system offers a robust single-layer coating, wich provides excellent adhesion, flexibility and a marked resistance to cathodic disbondment - even at elevated pipeline operating temperatures. | |
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FBE Onshore During the early 1980's , PIH pioneered the design and manufacture of portable induction heating and pwder coating equipment, which for the first time allowed identical FBE materials to be applied to the pipeline field joint onsite. This resulted in total intergation of the pipeline system end to end.  To cope with all type of terrain and ground conditions PIH developed a range of highly manoeverable blast/heat/coat vehicles. These have revolutionised the field joint coating process, by allowing any mainline welding speed to be easily accommodated.
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Heat shrink Sleeves Heat Shrink Sleeves are manufactured from irradiated cross-linked polyethylene films,
which are combined with a range of hot-melt adhesives,
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Polyurethane Spray-Field Joint Coating PIH developed spray-applied
polyurethane field joint coating systems, to overcome cycle-time and quality concerns,
when protecting weld joints on 3-layer Poluethylene factory coated pipelines.
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Polypropylene Field Joint Coating Polypropylene external anti-corrosion
coatings offer exceptional resistanceto mechanical damage, combined with an ability to
withstand continuous elevated operating tepmeratures, up to 130°C. However, developing a
field joint coating process that will bond well with the factory applied PP coating proved
complex and has been the subject of lenghy Research and Development by PIH.
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Revêtement de Joints 's realisations:
Up
to this date, the main realisations are the following:
GZ2AlgeriaDiameter 28" 50 km YADANA
ProjectMyanmarDiameter 36" 50 km ARTERE DES HAUTS DE
FRANCE-Lot n°3Diameter 44" 85 km CERVILLE Storage Station – France |
Presently: Quality Assurance: P.I.H. is certified ISO 9002.
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with or without epoxy primer systems.
depending
on the mastic type, prior to sleeve installatuion. In the case of 3-layer sleeves, a
two-part liquid epoxy primer is then employed, followed by sleeves shrinkage using manual
gas torch heating methods. Once fully shrunk the sleeve is 'rolled' to remove any residual
air pockets at the mastic / substrate interface, typically found around the weld bead and
factory coating edges.
This can be
reliably appiled onsite, without the complex and time-consuming application processes
associated with alternative products. This rapid-cure liquid coating has been engineered
to provide excellent adhesion to both the pipe substrate and PE factory coating overlap
areas, whilst minimising the risk of air entrapment around the weld bead and at the
coating / substrate interface.