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EnCana Weyburn SystemCO2 Sequestration

                             

                                           

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Weyburn Background

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Weyburn Project Background

• Field discovered in 1954• 360 million barrels produced with water injection

only

• CO2 will add 130 million barrels

• CO2 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

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Current project facts

• EnCana tripled the production since CO2 injection started 6 years ago

• 30,000 bbl/day reached 2 years ahead of schedule

• Since 2000, 8 million tones of CO2 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

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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 CO2-oil mixture to be swept to the producing well

– The flood consists of an intermittent injection of CO2 followed by water injection

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Injection Procedure

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Why SCADA Vantage

• Because it could handle:• Well monitoring and control • Processing Plant• CO2 Compression Plant• Tank Farm• CO2 Pipeline Monitoring• CO2 Nomination• Dynamometer Cards• Field ESD• Automatic Well Test• Miscible Flood

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Weyburn System Overview

ABB SCADA Vantage is used throughout the field and facilities

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Weyburn System Overview

• Water injection wells

• Major Bingham pump units

• Injection ESD

• Miscible Flood

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Weyburn System Overview

• CO2 Injection Control

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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

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CO2 Sequestration

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Cost Breakdown in CO2 Sequestration

0%

20%

40%

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80%

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Cost:

Capture: $40-60/t CO2 avoided Pipeline: $0.02-0.06/t .km Transportation mileage: 300 km Storage: $5-10/t CO2

Break even: $20 bbl

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Weyburn Background

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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

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Total SCADA Solution Provider