Composites Take on Air-to-Soil Interface Corrosion on Gas
CaliforniaPipe Details Installations on ½-inch (12.7-mm) to 42-inch (1,066.8-mm) carbon steel natural gas pipelines Temperature >175° F (79.4° C) Summary Lines ranging from ½-inch (12.7-mm) to 42-inch (1,066.8-mm) on a natural gas transmission system required repair/reinforcement. Snap Wrap, Contour WA™ and Pipe Support were used to limit the effects of corrosion and the environment 1,118 […]
Contour Achieves Pressure Containment, Reinforcement on 6-inch Kickback Line
Saudi Arabi Pipe Details 6-inch (152-mm) diameter Ethylene 148° C (298° F) operating temperature Summary Pipe damage significant internal corrosion and through wall leaks Clock Spring trained and certified installers applied 4 layers of Contour to the damaged areas of pipe Contour was applied to areas with complex geometry, including injection nozzles, bolted repair clamps, valve […]
Contour Restores Gas Line for 20 More Years of Service
Columbia Pipe DetailsTwo sections of an API 5L Grade B gas pipeline had suffered damage from external corrosion50.8-mm (2-inch) diameter line was damaged over a 1,829-mm (6-ft) straight run of pipe114.3-mm (4.5-inch) diameter line was damaged over a length of 2 m (6.56 ft) that extended along a straight run and an elbowCorrosion had caused wall […]
Contour Restores High-Temperature Caustic Line
Jubail, Saudi ArabiaPipe DetailsA 24-inch caustic line had sustained internal corrosionCorrosion resulted in through wall damage over a 152.4-mm x 203.2-mm (6-inch x 8-inch) defect area5 Bar (72.5 psi) repair design pressure115°C (239°F) repair design temperatureSummaryA 24-inch caustic line had sustained internal corrosionCorrosion resulted in through wall damage over a 152.4-mm x 203.2-mm (6-inch x […]
Contour Restores Ammonia Tank Roof to Safety
South KoreaPipe DetailsLeaking ammonia tankCracks from 1 mm to 5 mm (0.04 – 0.2 inch) on multiple girth welds80°C (176°F) Operating TemperatureSummary An inspection at a tank farm in Korea revealed that the roof of a tank holding ammonia was unsafe. Multiple cracks ranging in size from 1 mm to 5 mm (0.04 – 0.2 […]
Contour Takes on External Corrosion at a Chemicals Factory
AustraliaPipe Details 25-mm (1-inch) diameter. API 5L Grade B steel. 4 bar (58 psi) design pressure. 40° C to -40 °C (104° F to -40° F) design temperature. 3.9 mm (0.15 inch) original wall thickness. 1 mm (0.04 inch). remaining wall thickness. External corrosion. Ammonia pipework Summary A Contour repair was installed on a 1-inch […]
Contour Tackles Complex Geometry on Ammonia Lines
South KoreaPipe DetailsLeaking ammonia lineCracks from 1 mm to 5 mm (0.04 – 0.2 inch) on girth welds114 defects were repaired on a 6.5-inch (165.1-mm) diameter line leaking ammonia33 additional defects were repaired on various other line sizesSummaryAn ammonia line in a steel plant was leaking in many places, including leaks along a girth weld6 […]
Contour Strengthens Welded Joints for HDD
PolandPipe Details Welding joints on a 1,000-mm (39.3-inch) carbon steel natural gas line needed reinforcement 8° C (46° F) Ambient Temperature Summary Contour provided reinforcement on a 1,000-mm (39.3-inch) carbon steel natural gas line 3 technicians completed the installation in 4 hours followed by 12 hours curing time Despite the low-temperature conditions, the composite cured […]
Contour Solves Corrosion Issue in High-Temperature Line
United StatesPipe Details OVHD Line Rehabilitation Online 270° F (132° C) Piping Material: Monel 20-inch (508-mm) diameter line with 1 inch by 6 inch (25 mm by 152 mm) nozzles from welded patches Length: 20 feet (6 m) length Pressure: 45 psi (3 bar) Temperature: 270° F (132° C) Service: Naphtha, HCl, Chlorides Summary Inspections […]
Contour Seals Through-Wall Defect Offshore
West AfricaPipe Details Large through-wall defect in a 203-mm (8-in) diameter main firewater line 8.17 mm (0.32 in) original wall thickness Summary Large through-wall defect in a 203-mm (8-in) diameter main firewater line A team of 2 local Clock Spring trained technicians completed the Clock Spring Contour repair in 2 days No hot work was […]
Contour Safely Restores Leaking Valve
New MexicoPipe Details 6-inch (152-mm) cast valve containing amine developed a pinhole leak measuring <0.25 inch (6.35 mm) 600 psi (41.3 bar) operating pressure 38°C (100°F) operating temperature Summary A 6-inch (152-mm) cast valve containing amine developed a pinhole leak 2 Clock Spring trained and certified technicians completed the Contour repair in 4 hours A […]
Contour Restores Integrity to Platform Drain Line
West AfricaPipe Details 102-mm (4-inch) diameter main drain line on an oil production platform sustained severe corrosion damage and was leaking 6.02 mm (0.24 inch) original wall thickness Through-wall defects at support locations Summary 102-mm (4-inch) diameter main drain line on an oil production platform sustained severe corrosion damage and was leaking A team of […]
Contour Repairs Pitting on a Jetty
United KingdomPipe Details 457-mm (18-inch) line transporting gas oil External corrosion 6 mm (0.24 in) deep, leaving 24% wall thickness remaining. 80 mm (3 in) x 80 mm (3 in) pit 17.6 Bar (255.2 psi) operating pressure 40°C (104°F) operating temperature Summary A 457-mm (18-inch) line transporting gas oil on an over-water jetty required repair […]
Contour Repairs Pinhole Leaks in Refinery Pipeline
BeneluxPipe Details 610-mm (24-inch diameter 16 Bar (87 psi) design pressure 79° C (174° F) design temperature 6.35 mm (0.25 inch) original wall thickness Two 2-mm by 2 mm (0.08 inch by 0.08 inch) pin holes at support locations Crude oil from jetty to refinery storage Summary Corrosion on a 6.35-mm (0.25-inch) crude oil pipeline […]
Contour Repairs Nozzle on Thermal Oxidizer
AustraliaPipe Details A schedule 80 nozzle on a thermal oxidizer knockout pot experienced corrosion covering 60 mm (2.36 in) from the connection to the lower head 90°C to 100°C (194°F to 212°F) operating temperature 0.15 to 0.20 bar (2.17 to 2.9 psi) operating pressure Summary Contour repaired a nozzle on a thermal oxidizer knockout pot […]
Contour Repairs Leaks in a Cooling Water Line
BeneluxPipe Details 610-mm (24-inch) cooling water pipe developed a leak as a result to internal corrosion 5 Bar (72.5 psi) Design Pressure 65°C (149°F) Design Temperature Summary A 610 mm (24-inch) cooling pipe had sustained a leak resulting from internal corrosion and needed timely repair. A team of 3 local Clock Spring trained technicians completed […]
Contour Repairs Leak Under Insulation in Ammonia Plant
AustraliaPipe Details 1-inch (25-mm) diameter 26 bar (377 psi) design pressure -33° C to 40° C (-27° F to 104° F) design temperature Schedule 40 pipe Pinhole defect Transporting Ammonia Summary External metal loss in a 1-inch (25-mm) Schedule 40 pipe in an ammonia plant in Australia led to a pin hole and wall thinning […]
Contour Repairs Internal Corrosion on Heat Exchanger
AustraliaPipe Details A 600 mm (24-inch) heat exchanger suffered internal corrosion Corrosion damage left 3 mm (0.12 inch) of wall thickness remaining 14 Bar (203 psi) Pressure 40° C (104° F) Temperature Summary A 600 mm (24-inch) heat exchanger had sustained extensive internal corrosion and needed timely repair. Clock Spring trained technicians installed the Clock […]
Contour Repairs Corrosion Under Insulation at a Gas Station
AustraliaPipe Details 76-mm (3-inch) diameter API 5L Grade B steel 70 bar (1,015 psi) design pressure 60° C (140° F) design temperature. 5.5 mm (2.2 inch) original wall thickness 2 mm (0.08 inch) remaining wall thickness Corrosion under insulation Natural gas distribution station Summary A natural gas line at a distribution station had corroded from […]
Contour Repairs 4-inch Prover Loop
West AfricaPipe Details A 4-inch (101.6-mm) Prover Loop line on a metering skid had several pinhole leaks Crude oil Summary Pinhole leaks in a 4-inch (101.6-mm) Prover Loop line on a production platform needed repair Clock Spring Wet Wrap was applied to the leak and surrounding area 2 local Clock Spring trained technicians completed the […]
Contour Mends Pinhole Leak on a Topside Weldolet
West AfricaPipe Details 10-inch (254-mm) pinhole leak at a weldolet on an oil line Essential line that could result in shutdown of the platform Summary A pinhole leak at a weldolet on a 10-inch (254-mm) oil line needed repair Clock Spring Contour was applied to the leak and surrounding area 2 local Clock Spring trained […]
Contour Corrects Internal Erosion Defect Offshore
West AfricaPipe Details 102-mm (4-in) diameter pipe experienced internal erosion that resulted in a through-wall defect 8.56 mm (0.34 in) original wall thickness. Summary 102-mm (4-in) diameter pipe experienced internal erosion that resulted in a through-wall defect A team of 2 local Clock Spring trained technicians completed the 8-layer Contour repair in 2 days No […]
Contour Composite Repair Restores Offshore Firewater Line
West AfricaPipe Details Multiple through-wall defects in a 203-mm (8-in) diameter main firewater line 8.17 mm (0.32 in) original wall thickness Summary Multiple through-wall defects in a 203-mm (8-in) diameter main firewater line A team of 2 local Clock Spring trained technicians completed the Clock Spring Contour repair in 2 days No hot work was […]
Contour Addresses Internal Erosion on Offshore Production Unit
West AfricaPipe Details 406-mm (16-inch) diameter 12.7 mm (0.5 inch) original wall thickness Multiple internal erosion defects Oil inlet to separator Summary Severe internal defects in a 406-mm (16-inch) line threatened to compromise offshore production operations. Clock Spring designed a repair suitable for the line transporting hydrocarbons. Clock Spring trained installers repaired the damage so […]
Contour Achieves Pressure Containment, Reinforcement on 6-inch Kickback Line
Saudi Arabi Pipe Details 6-inch (152-mm) diameter Ethylene 148° C (298° F) operating temperature Summary Pipe damage significant internal corrosion and through wall leaks Clock Spring trained and certified installers applied 4 layers of Contour to the damaged areas of pipe Contour was applied to areas with complex geometry, including injection nozzles, bolted repair clamps, valve […]
Composites Restore Offshore Riser Integrity
MalaysiaPipe Details 305-mm (12-inch) diameter riser with back-to-back bends 40 bar (580 psi) operating pressure 35° C (95° F) operating temperature Summary Extensive external corrosion of a riser on an offshore oil and gas asset Corrosion extent 60% Trained local installers carried out repairs, installing Clock Spring Snap Wrap, followed by Clock Spring Contour to […]
Composite Solution Restores Mitre Bend Integrity
Western EuropePipe Details 356 mm (14-inch) pipe diameter bend 2 bar (29 psi) operating pressure 30° C (86° F) operating temperature 9.53 mm (0.38 inch) original wall thickness Summary External Corrosion on a 356-mm (14-inch) mitre joint in a chemical facility required repair. The 9.53 mm (0.38 inch) original wall thickness had been reduced to […]
Clock Spring Contour Repair Topside Piping System Corrosion
AfricaPipe Details 26-inch (660-mm) topside production piping system Severe external corrosion Summary Clock Spring and Contour repairs were carried out to restore extensively corroded 26-inch (660-mm) topside production piping system on an offshore asset The complete pipework was subject to severe external corrosion that affected straight pipe lengths, girth welds, pipe support, T’s, tight radius […]
Liquid Terminal Employs Composite Repairs to Restore Jetty Lines to Safety
UNITED KINGDOMPipe Details152-mm (6-inch) Butane Jetty Line200-mm (8-inch) Propane Jetty LineSummaryExternal corrosion on 152-mm (6-inch) and 200-mm (8-inch) import jetty linesPit depths in the lines were up to 5.5 mm (0.22 inch) amounting to 70% wall lossTrained local contractors carried out repairs, installing Clock Spring Snap Wrap to restore straight line sections.Clock Spring Snap Wrap […]
Contour Reinforces Corroded Cooling Water Line
BENELUXPipe Details609.6-mm (24-inch) diameter – 25.4-mm (1-inch) elbow6 BarG (87 psi) design pressure3.5 BarG (51 psi) operating pressure+12°C (+54°F) operating temperature7.925 mm (0.31 inch) original wall thicknessSummaryInternal corrosion caused leaks in a 609.6-mm (24-inch) diameter cooling water line and a 25.4-mm (1-inch) T2 Clock Spring trained and certified technicians from Interseal completed the Contour repair […]
Offshore HP Separator Leak Stopped with Contour
WEST AFRICAPipe Details152.4-mm (6-inch) outlets on the main high-pressure (HP) oil/gas separator had multiple severe internal erosion defects.10.97-mm (0.43-inch) original wall thickness.SummaryUT inspection revealed severe internal defects on several 152.4-mm (6-inch) outlets on the main high-pressure (HP) oil/gas separator on an offshore platform2 local Clock Spring trained technicians completed the Contour installation in 1 dayThe […]
Contour Takes on External Erosion in Saudi Arabia Petrochemical Plant SAUDI ARABIA
SAUDI ARABIAPipe Details254-mm (10-inch) line transporting butane13 damaged locationsExternal corrosion resulted in 60% wall loss.27 Bar (391 psi)53.7°C (128.6°F) operating temperatureSummaryA 254-mm (10-inch) line transporting butane needed repairThe line was damaged by external corrosion that had resulted in 60% wall loss5 local Clock Spring trained technicians completed the Contour installation in 2 weeksThe line remained in […]
Contour Restores Lines Damaged by CUI
Damage had compromised the integrity of 38 locations on the line, including elbows, girth welds, vents and drains that in some cases had experienced as much as 50% wall loss.
