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Inter-M® PULSE The Intelligent Subsea Mooring Connector. Mark Prentice Product Development Manager, InterMoor Ltd. December 2012

Inter-M® H-Links & Pulse – Introduction

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H-Link technology.

Central to the Inter-M®Pulse unit is a forged, quenched and tempered “H-Link”

Designed to connect chains/ropes of different sizes together

Installed in some of the harshest waters in the world for over 25 years.

The same forged technology found in the

Inter-M®Swivel. A chain to chain mooring swivel.

Inter-M® H-Links – Reference List

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•Ocean Confidence •MadDog •Red Hawk •ATP Rowan Midland •Thunderhorse •Independence Hub •Tahiti •BlindFaith •Balmoral FPV •Triton FPSO •Kikeh •Mirage •ThunderHawk •West Berani at Tombua Landana •Anasuria FPSO •Exxon Balder •Oxy Petroleum FPSO •Chervon Jack St Malo •Technip Lucius

600t MBL

2600t MBL

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Acoustically linked / Hardwired

H-Link Chain Connection

Battery and load cell housing

Inter-M® Pulse

Inter-M® Pulse Development

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Inter-M® Pulse Long Term Intelligent Monitoring Connector

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Typical System Proposal

Inter-M® Pulse

Rig Supplied Emergency Power

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Graphical user interface:

• Raise alarm when a mooring line fails

• Monitor performance of mooring lines

• Monitor mooring cable creep

• Underwater cable free acoustic communication

• Ultra-low power design to extend the battery life and prolong service.

Inter-M® Pulse

Acoustic Real-time Mooring Monitoring System

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Inter-M® Pulse

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Inter-M® Pulse Sea Trials To ensure test the technology of the Inter-M® Pulse , a 76mm (800T MBL) unit was installed on the Ocean Nomad Semisubmersible in the North Sea during the winter of 2011/12 for a six month drilling campaign.

Mooring System - Chain and fibre makeup

- Installed at the fibre/shackle connection.

Trial Location - Everest 22/10a

- Operator was BG.

Conditions & Results - Sea-states of around 12m

- Inter-M® Pulse sent accurate line tensions and inclination readings to the control room.

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Inter-M® Pulse Sea Trials The Inter-M® Pulse was installed over the stern roller of the Ocean Nomad.

The units are designed for MODU and/or FPSO installation.

After a successful installation, the unit was immediately operational and feeding line tensions and inclination readings to the surface.

The readings have since been verified and documented.

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Inter-M® Pulse Sea Trials

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Inter-M® Pulse ROV Trial Recently, as part of a client requirement, a subsea trail was undertaken to ensure the Inter-M® Pulse could be used long-term in permanent mooring systems.

Mooring System - Chain and chain makeup

Trial Location -The Underwater Centre, Fort William, Scotland (ROV Centre)

Trial Results

-Inter-M® Pulse sent accurate line tensions and inclination readings to the control room and the logger/batteries were removed and replaced by the Neptune ROV.

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Inter-M® Pulse

Key Benefits on a MODU & FPSO

• Full history of mooring line

• Acoustic data transmission

• On-demand data upload

• Traffic light alarm system

• Stern roller and/or ‘A’ Frame installation

• Suitable for moored FPSO and MODU

• Post-hurricane information system that saves

inspection time and costs.

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Thank you