Pipeline Free Span Correction by

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Pipeline Free Span Correctionby

• sendit
• sendit, llc
  
  Tel 281
  531 5220
• One Greenway Plaza
  
  sendit_at_twindog.com
• PO Box 42484
• Houston, TX 77242-2484

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sendit

• OFFERS
• Engineering and material for free span
  correction and lateral deflection through cold
  bending of pipelines

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Cold Bending SleeveInstalled as a pipe section
in the pipelineAdditional couplings can be added
to subsequent pipe joints and connected once
welding and field joint coating has been completed
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Tolerances in the locking groove determine the
bending radius of the pipeline
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ApplicationUneven seabed

• The pipeline can be bent to a radius consistent
  with a defined degree of plastic deformation.
  Closing of the tolerances in the couplings offer
  instantaneous increase in the moment of inertia,
  which ensures that further plastic deformation is
  prevented. The resulting bending moment in the
  pipeline is negligible.

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ApplicationHorizontal deflection
Support for horizontally deflecting pipeline
Pipeline with bending restrictor s installed as a
centenary can further bend in all directions to a
plastic deformation criteria
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ApplicationShore Approach
Bending restrictors can be designed to
accommodate external forces resulting from
natural or manmade cover. Bending of the pipeline
is limited to a plastic deformation criteria.
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ApplicationExpansion loop or short radius
deviation
Pipeline with bending restrictors can be
installed at short bending radius around an
object placed on the seabed. Bending of the
pipeline is limited to a plastic deformation
criteria.
Platform
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Advantages

• Cold bending is achieved during the pipeline
  installation operation when the required
  additional pipeline length is created
• The bending restrictor sleeve is installed on the
  pipe sections before being added to the pipeline
  and made part of the final installation
• Weight coating is not required where cold bending
  takes place leaving the outside diameter similar
  to the adjoining sections
• Alleviates seabed preparation and post
  installation corrections