1. Durban Single Buoy Mooring Continuity of Supply Seminar November 2013 Captain Calum Love

2. DURBAN SBM Operators - SAPREF Owners – Shell, BP, Engen, SASOL, Total
80-85% of SA Crude Oil Import Supply
National Key Point
Limited alternative crude import facility
Average 8 tanker p/m visit the SBM
Annual throughput 16 million tonnes
Refinery Supply
SAPREF (Durban) - Shell + BP
Engen (Durban) - Engen (Petronas)
NATREF (Sasolburg) - SASOL + Total

3. Very Large Crude Carrier at Durban SBM

4. Not Always Blue Skies and Sunshine

5. SBM 1 Heading for Refurbishment

6. Subsea pipeline 2.5km, 48” dia Installed in 1999
SBM Inc Buoy installed 2009
330,000 dwt maximum tonnage
PLEM at depth 48m
G.SCOULAR

7. THE SBM Moorings - 2 x Double Hawsers (320MT SWL)
Hoses (Floating) - 2 x 20”(25)/16”(4) double carcass inc Breakaway Couplings
Hoses (Subsea) - 2 x 7 x 24” (7) double carcass
Subsea pipeline integrity verified by intelligent pigging (5yrs) & side scan sonar (2yrs)
Detailed inspection and maintenance program including 1-2 dives p/m inspecting all sub sea elements
Shut off valves at the SBM hose tanker/subsea line/pipeline and refinery interfaces
Discharge Rate - Av ±11,000m3/hr, Max 13,500m3/hr
Moorings and Hose life cycle verified by post use destructive testing

8. TANKERS @ Durban SBM VLCC’s (Very Large Crude Carriers)
Ex Arabian Gulf
2m barrels – 4/5 grades
2 - 3 port loading
Co-freighting between SBM participants with lead charterer.
day voyage – anti-pirate up to 18 days
Vessel size 330,000MT
Length metres
Draft - 22 metres
Discharge - 48hrs
LR3’s (Suezmax)
Ex West African
1m barrels, 1/2 grades
Single cargo owner and charterer
1 – 2 port loading
±10/12 day voyage
Vessel size 170,000MT
Length metres
Draft metres
Discharge - 24 hrs

9. 24’’ Subsea String Schematic
MARCH 2005
PAGE 1

10. Operational Integrity
All tankers scheduled to the SBM are quality
assessed to the highest industry standards.
Team of 5 on board Tanker throughout (Pilot,
Discharge advisor (Master Mariners) + 3 divers/
roustabouts).
Tanker berthed by SAPREF marine pilot with the aid
of digital computer imagery.
Advance weather forecasting for early warning of
severe weather.
Support Tug on site connected to stern of tanker.
Electronic Data transmission on actual SBM weather,
Line pressure, rope tension etc. to Refinery + SBM
Managers office.
Video camera monitoring on Bluff, tugs and divers
helmets.

11. SBM Diving Dive Team 2 x Supervisors, panel control man, 9 divers
2 divers together, 1 on standby
48 metres depth, max for surface supplied air
Limited to 25 mins = 16 mins working
One dive takes 1.5hrs to manage/cycle
$1.4m invested in new dive spread for Smit Siyanda
$0.75m further investment identified to increase dive bottom time
Complex and rigorous dive safety rules being complied with to ensure diver safety
Weather parameters 1.5m seas, <1 knot current, limit diving opportunities at SBM

12. SBM Management
Maintaining continuity of supply, 85% RSA crude import through SBM
Operating in difficult/challanging environmental conditions
Compliance at all times with dynamic International and Shareholders HSSE standards
Proactive Risk Management and Review
Response to Risk Management:
SBM subsea pipeline 1999, New SBM 2009
New SBM utility vessel 2009, and support vessel 2010
Enhanced diving equipment 2011 & 2012
Rigorous subsea system hydrodynamic design review
Pneumatic line throwing equipment, improved berthing window
Investment in new maintenance equipment and test new technologies

14. Worse berthing weather conditions have been made manageable by use of the pneumatic line thrower.

16. Supply Contingencies
There are no realistic alternative crude import capabilities available to cover a protracted non-availability of the SBM.
Durban refineries would shutdown when their crude runs out, 2-4 weeks
Spare SBM change out could take 4 – 6 weeks, depending on weather and type of change out required.
Product supply contingency is based on the IV import facilities. We now have 4 product import berths and will restore a 5th after berth civil upgrades are completed by TNPA. (i.e. Berth 5).
Berth 9 vessel capability (40kt) does not suit crude supply and Natref crude connections would need to be restored.
Using berth 9 for crude to Natref would compromise product imports.

17. Durban Dig Out Port Development
The SBM and subsea pipeline must be relocated prior to commencing the new development to ensure continuity of supply
DDOP are considering options on where best to relocate the SBM and subsea pipeline
Feasible implementation supported by early design detail is critical to managing crude supply risk
SAPREF are actively engaged with the project’s director and consultant contractors on behalf of the SBM Owners
SBM and subsea pipeline options must ensure that continuity of supply is maintained

18. Crayfish and Pineapple!!
ENVIRONMENTAL HAVEN
Salmon
Crayfish and Pineapple!!
Myrtle feeding on broken muscles
Various

19. Durban Single Buoy Mooring Continuity of Supply Seminar November 2013 Captain Calum Love

20. 1ST TANKER ON NEW SBM

23. PAGE 1

24. SBM 3