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Construction Support

Construction Support Overview

Atteris has engineering professionals with significant expertise in project management and construction support.

Atteris has the expertise to assist our clients with the following:

  • Development of tendering and contracting strategies
  • Preparation of ITT documentation, such as contracts, pricing schedules, scopes of work, specifications and drawings
  • Review of tender submissions
  • Package management, project management, contract administration and construction supervision
  • Project close-out reports

Innovative Installation Engineering

Atteris’ Installation Analysis team have extensive experience in providing engineering solutions for demanding environments and limiting operational constraints all around the world.

Our dedication to safety and efficiency, drives our engineering innovation and the use of cutting-edge engineering software technology, enhanced by our proprietary automation tools to analyse complex offshore operations.

Construction Method Development and Review

Construction and execution experience is a valuable part of a design engineer’s development. At Atteris we recognise this fact and have made this part of our development program for our engineers.

Most of our engineers have a strong construction background, which we draw upon to develop and review construction methodologies, often running internal workshops to ensure the most constructible designs. Understanding construction methodologies early in your project phases will reduce risk of cost and schedule overrun during execution, maintaining project value.

Expert Installation Services

Atteris personnel have provided installation engineering support to installation contractors around the world. In addition, we have supported cost optimisation and installation method selection activities for operators.

Our services include:

  • Pipelay installation analysis and lay table preparation
  • Dynamic lifting analyses and calculations
  • Flexible and umbilical pull-in analysis
  • Development of installation procedures
  • Seafastening calculations
  • Dynamics analyses of lay products to determine optimum layback and maximise operation envelopes
  • Abandonment and recovery analyses to ensure acceptable stresses are maintained
  • Independent review and verification

Dynamic Analyses

Our clients leverage our detailed understanding of hydrodynamics, vessel motions and operational considerations to perform offshore installation analyses for any type of subsea structure or component.

Atteris’ experience includes the installation of:

  • Subsea pipelines (rigid and flexible) by reel-lay, J-lay and S-lay methods
  • Rigid and flexible risers
  • Umbilical and SDU installation
  • Manifolds and protection structures
  • PLEMs and PLETs
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