1. © ABB - LCC Oil & Gas SCADA - 1 EnCana Weyburn System CO2 Sequestration

2. © ABB - LCC Oil & Gas SCADA - 2 Weyburn Background

3. © ABB - LCC Oil & Gas SCADA - 3 Weyburn Project Background Field discovered in 1954 360 million barrels produced with water injection only CO 2 will add 130 million barrels CO 2 brought in through a 300 Km pipeline from a coal gasification plant in Beulah ND More than 700 wells in production Current production 30,000 bbl/day Expected production 40,000 bbl/day

4. © ABB - LCC Oil & Gas SCADA - 4 Current project facts EnCana tripled the production since CO 2 injection started 6 years ago 30,000 bbl/day reached 2 years ahead of schedule Since 2000, 8 million tones of CO 2 have been pumped underground instead of being released into the atmosphere By the time the project wraps up 30 million tones will be sequestered, the equivalent of taken nearly 7 million cars off the road More than 30 years of production have been added to the Weyburn field

5. © ABB - LCC Oil & Gas SCADA - 5 Miscible flood How it works –The miscible displacement process is more than a simple pressure maintenance project in that it involves introduction of a gas (solvent) into the reservoir that will mix with and completely dissolve the reservoir oil. –This allows the CO 2 -oil mixture to be swept to the producing well –The flood consists of an intermittent injection of CO 2 followed by water injection

6. © ABB - LCC Oil & Gas SCADA - 6 Injection Procedure

7. © ABB - LCC Oil & Gas SCADA - 7 Why SCADA Vantage Because it could handle: Well monitoring and control Processing Plant CO 2 Compression Plant Tank Farm CO 2 Pipeline Monitoring CO 2 Nomination Dynamometer Cards Field ESD Automatic Well Test Miscible Flood

8. © ABB - LCC Oil & Gas SCADA - 8 Weyburn System Overview ABB SCADA Vantage is used throughout the field and facilities

9. © ABB - LCC Oil & Gas SCADA - 9 Weyburn System Overview Water injection wells Major Bingham pump units Injection ESD Miscible Flood

10. © ABB - LCC Oil & Gas SCADA - 10 Weyburn System Overview CO 2 Injection Control

11. © ABB - LCC Oil & Gas SCADA - 11 Dynacard Plot Plot multiple cards on screen (current and reference) View/change load limits, malfunction/ pump-off points the points Right-Click to upload/download/save data

12. © ABB - LCC Oil & Gas SCADA - 12 CO 2 Sequestration

13. © ABB - LCC Oil & Gas SCADA - 13 Cost Breakdown in CO 2 Sequestration Cost:  Capture: $40-60/t CO 2 avoided  Pipeline: $0.02-0.06/t.km  Transportation mileage: 300 km  Storage: $5-10/t CO 2  Break even: $20 bbl

14. © ABB - LCC Oil & Gas SCADA - 14 Weyburn Background

15. © ABB - LCC Oil & Gas SCADA - 15 IPPC – Carbon Capture & Storage Report Approved by IPCC in September 2005 Published December 2005 Written by over 100 authors from 30 countries, all continents Extensively reviewed by over 200 experts Presented at UNFCCC COP-11/ Kyoto COP/MOP-1 in Montreal

16. © ABB - LCC Oil & Gas SCADA - 16 Total SCADA Solution Provider