Case Study

New Build Horizontal Lay System

Project description

Wellstream contracted PDi to design, fabricate, commission and deliver a horizontal lay system (HLS) to be used in conjunction with a 75Te four track tensioner.

Incorporated within the design were the following key components:

  • HLS tower
  • Tensioner interface platform
  • High tension lay chute
  • Low tension lay chute
  • Work platform
  • Product hang-off beam

On completion of the design of the HLS, PDi then managed the fabrication, commissioning and delivery of the HLS to the Smith Embankment quay for load-out to Wellstream’s installation vessel.

Our Scope

As part of the project PDi delivered the following:

  • HLS Design Packages
  • HLS Design - Verification Report
  • HLS Assembly & Commissioning Procedure
  • HLS Assembly & Testing HIRA Report
  • HLS Assembly & Testing Photo Journal
  • Rigging Documentation



​Aberdeen, UK


October 2010 (6 months)

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