Seawater & Drain CAISSONS - GMC Deep...
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Reliable Connected Technology Solutions! Seawater & Drain CAISSONS Experience & Innovation in Pipeline Connection Technology from Surface to Seabed On offshore production platforms, Seawater Lift Caissons are essential to draw in seawater for use in cooling systems, well re-injections , and firewater. Drain Caissons create a drain system for the platform for both hazardous and nonhazardous fluids, as well as open and closed drain systems. Caissons can suffer severe corrosion damage over the years, which can cause holes through the caisson, leading to inefficiency of the systems and potential failure. Crevice corrosion is also a known problem which can cause the caisson to fail. GMC provides a complete caisson replacement service with our mechanical box & pin connector. Fabrication of the connectors to caisson sections onshore removes the need for welding offshore. Caisson sections are made up together offshore using GMC’s Make/Break tooling and provide a safe, efficient, time, and cost saving installation service. GMC Mechanical Connector Features • Concentrically Ringed Connector • Non-Rotational Make-Up • Low Connection Make-Up Time • Multiple Metal-to-Metal Nib Seals • Preload Spacer to Eliminate Crevice Corrosion • Extremely Fatigue Resistant – 10x Better Fatigue Life Versus Welded Caissons • Tested and Qualified by DNV to ISO21329:2004 • Field Proven for TLPs, Pipelines, and Risers • Highly Configurable to Size and Material Specifications ISO 21329:2004
Transcript of Seawater & Drain CAISSONS - GMC Deep...
Reliable Connected Technology Solutions!
Seawater & Drain
CAISSONS
Experience & Innovation in Pipeline Connection Technology from Surface to Seabed
On offshore production platforms, Seawater Lift Caissons are essential to draw in seawater for use in cooling systems, well re-injections , and firewater.
Drain Caissons create a drain system for the platform for both hazardous and nonhazardous fluids, as well as open and closed drain systems.
Caissons can suffer severe corrosion damage over the years, which can cause holes through the caisson, leading to inefficiency of the systems and potential failure. Crevice corrosion is also a known problem which can cause the caisson to fail. GMC provides a complete caisson replacement service with our mechanical box & pin connector. Fabrication of the connectors to caisson sections onshore removes the need for welding offshore.
Caisson sections are made up together offshore using GMC’s Make/Break tooling and provide a safe, efficient, time, and cost saving installation service.
GMC Mechanical Connector Features• Concentrically Ringed Connector
• Non-Rotational Make-Up
• Low Connection Make-Up Time
• Multiple Metal-to-Metal Nib Seals
• Preload Spacer to Eliminate Crevice Corrosion
• Extremely Fatigue Resistant – 10x Better Fatigue
Life Versus Welded Caissons
• Tested and Qualified by DNV to ISO21329:2004
• Field Proven for TLPs, Pipelines, and Risers
• Highly Configurable to Size and Material
SpecificationsISO 21329:2004
For more information, visit www.gmcdeepwater.com, or contact [email protected]
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Caisson Sizes & Data
Standard Flush OD Caisson Connector & Insert
Box Connector
Relief Port
Injection Port
Relief Port
Make-up Groove
Pin Connector Pre-load Insert
Box ConnectorRelief Port
Injection PortRelief Port
Pin ConnectorHang/Off Groove
GMC Mechanical Connector Benefits• No hot work necessary• Asset life extension• Reduced future decommissioning costs• Mitigate crevice corrosion with GMC’s patented preload sealing spacer• Customised designs configured to existing caisson geometry• Can be installed in confined spaces• Less POB compared to welding (~50% less people)• Quicker to install than a welded caisson
– 98% time saving possibleWhy Repair! When you can replace for less cost!
Why Weld!When You Can
Connect In Seconds!
Table showing Flush OD (FOD) Connectors. Flush ID (FID) Connectors available on request.
External View Internal View
