1. Integrity of subsea control systems: Electrical testing in deepwater environments Tony Cumming, Project Manager

2. Asset Integrity Management Field Engineering Systems Design Equipment Rental/Sale ResearchInspection Imes Group capability Staff:220 Operating Bases:16 Industries:Energy, Defence, Process

3. Case Study

4. Subsea Architecture

5. Defective & decaying electrical system since installation 120mbd at risk if system fails Challenge: to remotely locate and isolate faults with minimum production disruption. Scenario

6. Connectors & interfaces

7. Develop system to electrically test integrity of subsea power and control umbilicals Provide data logging for reference To isolate faults in subsea architecture Enable fast accurate repair The challenge

8. The Solution

9. ROV Installation

10. Outputs & Displays

11. Growth in deepwater control deployment (Africa, Gulf of Mexico etc) Increased architecture complexity Ageing assets Opportunity to capture footprint signatures during installation. Market Opportunity

12. Full identification of subsea faults. Measurement of degradation over time. Change in Operator approach to risk; move reactive to proactive repair strategy. Benefits & Results

13. TDR functionality. OTDR options. Joint Industry Project. Collaborators required. Future product development

14. Tony.cumming@imes-group.com www.imes-group.com