| Product Overview
RetroSled and ExpandaSled™ (expanding
RetroSled) are optimized pipeline retrofit sled arrays designed for
pipelines where anode burial below the natural seabed is required or
anticipated. Both are ROV installed.
Both sleds are available in standard
configuration for 15 or 30-year design life. Sleds are also equipped with
single or dual RetroClamps™ to facilitate rapid and reliable tie back to the
pipeline or riser.
RetroSled is a single-section, rigid
sled design measuring 20 ft x 8 ft. Use RetroSled to extend life on a
pipeline with good coating and still protected readings above -0.900V
vs Ag/AgCl sw.
ExpandaSled consists of three
sections, which unfold to a 40 ft’ x 8 ft anode on the bottom. Use ExpandaSled when an extra current boost is
required for a depolarized pipeline or one with a degraded coating.
Both sleds are pre-programmed into
Deepwater’s PipeMod™ attenuation modeling system, which calculates the
optimized the spacing
between sleds.
Applications
Offshore pipelines. Note: in situations where
seabed movement is anticipated, Deepwater does not recommend the rigid
RetroSled. See the CP Mat™ for these applications.
Main Benefits
- Rapid and safe offshore deployment.
- Proven design; hundreds of miles of
lines successfully retrofitted.
- Highest quality materials and anodes
from Deepwater's affiliated foundries.
Materials
RetroSled uses the highest available quality
of sacrificial anode alloys. Typical ambient and cold water Al-In-Zn
compositions are used. All steel fabrication uses ASTM A 36 material and is
performed in Deepwater's own manufacturing facility as well as at
sub-licensed facilities.
System Design Life
10 to 30 years depending on customer
requirements.
RetroClamp™ Tie Back
Each RetroSled is shipped with two
RetroClamps; typical cables are 2 x 25 feet #4/0 AWG heavy duty flex cables.
Thousands of these clamps are now in service around the world, and many have
been installed by ROV. The installation efficiency of the RetroClamp has
saved customers hundreds of thousands of dollars. |
