integrated caisson team (ict) operating model

INTEGRATED CAISSON TEAM (ICT)

OPERATING MODEL

INTRODUCTION: Due to platform life extension,

Caissons have often been in place longer

than planned, and deterioration and failure of

Caissons is a growing trend in the North Sea

and worldwide. This deterioration and failure

may present a dropped object risk to subsea

structural and piping systems.

The Integrated Caisson Team (ICT) is a Global

Energy Group Production IRM initiative that

provides a cost efficient and value added

turnkey Caisson solution and “one-stop” shop service consisting of the following

capabilities:

Initial Integrity Inspection

Survey

Caisson Design

Caisson Fabrication

Caisson Destruct

Caisson Installation

Caisson Repairs

Caisson Maintenance

The philosophy behind the ICT model is the provision of a “one-stop” Caisson

remediation and replacement offering that identifies best value solutions by

combining the services of selected ICT Partners throughout the project lifecycle.

Key to the ICT philosophy is the decision by GEG PIRM not to add mark-ups to other

ICT Member services and end deliverables

Of significant value is the ability of the ICT to offer options to a variety of solutions from

within the structure of the ICT, without the requirement to bring in additional external

resources.

Examples include:

Options for either welded or weldless connections of Caisson sections

Use of conventional rigging equipment or specialist Caisson lifting tools during

destruct and construct

Options to coat Caissons with Client specified coating systems or utilisation of

1 coat systems complete with coating warranties during the fabrication

process

Option to install Marine Growth Prevention Systems at time of Caisson

installations, or as retrofit solutions to existing Caissons (this option is available

to Risers, Conductors, and structural tubulars)

Options for nitrox diving capability to 50mtr or Cofferdam support in the splash

zone

Alternative access solutions including rope access, WEB Deck and tension

netting systems, all installed by multi-disciplined access and trade technicians

Options for platform, vessel or daughter craft based diving operations

INTEGRATED CAISSON TEAM – RANGE OF SERVICES

PROJECT MANAGEMENT

SPECIALIST ACCESS

Subsea and topside special access systems, including:

Vessel or platform based diving systems using nitrox to increase dive time and

reduce decompression burdens

Custom built Daughter craft that offers diving, ROV and UAV launch

capabilities

Rope access, engineered decking, tension netting, catenary anchor systems

and aerial drones

INSPECTION

Subsea and topsides inspection

REPAIRS

Welded

Composites

Liners

DESTRUCT/DECOMMISSIONING

Multi-skilled access and trade specialists

Internal and external caisson lifting tools

FLUID MANAGEMENT

SURVEY

Full survey capabilities, including mark-up of work points for new Caisson

clamp and guide installation

DESIGN

FABRICATION

UK Fabrication facilities

European Fabrication facility

COATINGS

Including anti-fouling product

SPECIAL TOOLING

Weld-less connectors

Caisson lifting tools, including the capability to secure damaged caissons

during destruct scopes

COFFERDAMS

INSTALLATION

Subsea and topside construction & rigging teams

Special access services

Clamp and guide work point assurance (laser survey)

Weld-less connections removing requirement for hot work, habitats and

associated NDT

Full fabrication and welding capability where hot work is available

Habitats

Specialised Caisson Lifting Tools

Marine Growth prevention devices (including retrofit option for existing

structures)

MAINTENANCE

Impressed Current CP Systems

Marine Growth Prevention Tools

INTEGRATED CAISSON TEAM – MODEL FLOW DIAGRAM

INTEGRATED CAISSON TEAM – CAPABILITY AND DELIVERABLES

GEG STATS GMC Acotec CETCO Cathelco

Project Management

Access: Topside and Subsea

Inspection

Survey

Destruct

Design

FAB – UK

FAB – EUR

Coatings - UK

Coatings - EUR

Special Tooling Marine Growth Prevention Systems

Cofferdams

Installation

Fluid Management

Cathodic Protection

INTEGRATED CAISSON TEAM – SPECIAL TOOLING & ACCESS IMAGES

INSTALLATION OF CAISSON CLAMPS AND CAISSON GUIDE IN SPLASH ZONE

INSTALLATION OF DEAD WEIGHT SUPPORTS TO 4 NO CAISSONS

STRUCTURAL REPAIR TO CAISSON REQUIRING INSTALLATION OF SHELL PLATES AND 14

LAYER TECHNOWRAP REPAIR

CAISSON GUIDE CLAMP INSTALLATION INCLUDING BOLT TENSIONING ACTIVITIES

WATER INTAKE CAISSON REPLACEMENTS – WELDELSS TECHNOLOGY

CAISSON FABRICATION

PREPARING FOR NEW CAISSON INSTALLATION

Transferring Control Panel to

Work Location

Transferring the Make-Up Tool

to Work Location

Lifting and Handling Tool

Installed to caisson

Sections

MAKING THE JOINT

Transferring Caisson Section

Lining Up and Preparing to Stab the Joint

Pin and Box Stabbed Together

Make up of Joint

Removing Lifting and Hang-Off Rigging in Preparation for Lowering Caisson

Lowering caisson in Preparation for Making Up of Next Joint

Final Dead Weight Support Preparations and Caisson Successfully Installed to

Location

Dead Weight Support Installed

Integrated Caisson Team (ICT)

CONTACTS:

Global Energy (Group) Limited

Andy Graham

Tel: +44(0) 1224 794 869

Email: [email protected]

STATS (UK) LIMITED

Brett Laurenson

Tel: +44(0) 1224 772 461


GMC LIMITED

Phil Jones

Tel: +44(0) 1189 657 512


ACOTEC NV

Philip Starr

Tel: +44 74 320 487


CETCO

Kris Frampton

Tel: +44(0) 1224 787 340


Cathelco

Marc McKinlay

Tel: +44(0) 1467 632 136


integrated caisson team (ict) operating model

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