1. Intervention Technology Lady Grete In 2006 i-Tech was awarded a contract to support Woodsides deepwater drilling operations in the turbulent waters offshore Kenya. At short notice, a decision was made by Woodside to contract a second ROV onboard support vessel Lady Grete to assist drillship Chikyu during the exploration drilling campaign. As their preferred supplier of ROVs, Woodside came directly to i-Tech for a solution. Due to the immediate requirement in a remote location, i-Tech mobilised a new Centurion QX work-class system directly after completing factory acceptance tests in the UK. An engineering team was dispatched from Australia to meet the system in Mombassa and began work onboard Lady Grete to design and install the ROV interface structures.

2. Intervention Technology Lady Grete After an initial design and engineering period lasting 12 days, fabrication of the massive mezzanine deck structure began. The majority of the steel came from South Africa and the fibre-reinforced walkway grating was flown in from Dubai. Twenty-four inch I-beams had to be manufactured from 20mm and 30mm plate as none were available locally at short notice, requiring an enormous welding effort. All beams were tested using non-destructive techniques to ensure they complied with both Australian and DNV quality standards. From a completely bare deck, more than 80 tonnes of equipment was fully installed and operational in 5 days through round-the-clock working, a phenomenal achievement considering the complexity of such a job in an unfamiliar location. The photo diary illustrates just how complex this installation was in such a short space of time and is a typical example of the skill and commitment of i-Techs ROV technicians and engineers.

3. Intervention Technology Toolbox Talk gets things kicked off in Mombasa

4. Intervention Technology The giant mezzanine deck is lifted onboard Lady Grete

5. Intervention Technology From a bare deck, the mezzanine begins to slot into place

6. Intervention Technology Beams spread the load to the main deck structure

7. Intervention Technology Once the main mezzanine structure is in place, work can begin on the rest of the installation

8. Intervention Technology The mezzanine structure is painted to provide corrosion protection

9. Intervention Technology Having loaded the ROV control van onboard, the winch is craned into place

10. Intervention Technology At 30te, care is taken to position the winch on the mezzanine structure

11. Intervention Technology ROV workshop van is hoisted into place

12. Intervention Technology After 5 days of round- the-clock construction work, the ROV installation is complete

13. Intervention Technology Test dives ensure all systems are fully operational

14. Intervention Technology Key Facts – Equipment Installed A-frame14.0Te Umbilical Winch30.0Te Power Pack2.8Te Control Van12.0Te Workshop Van8.0Te Centurion QX ROV2.5Te TMS2.5Te A-frame Mounting Skid4.0Te Motor Alternator Set0.5Te TOTAL WEIGHT76.3Te

15. Intervention Technology Project Summary i-Tech single-sourced by Woodside rapid mobilisation of Centurion QX ROV system to remote location – i-Techs first foray into Kenya from bare deck, full installation of pre- fabricated mezzanine structure and ROV spread onboard Lady Grete in 5 days i-Techs experience of installing ROVs onboard support vessels a key factor in the success of this mobilisation the global approach of i-Tech spanned three continents to ensure Woodside had a fully operational ROV in record time having completed the Kenya contract, the Centurion QX is now on long-term contract in Australia