Tar Sands A Bridge to Tomorrow. What are Tar Sands? Tar sands, also called oil sands, are a mixture of bitumen, sand, water, and clay Tar sands, also.

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Presentation transcript:

Tar Sands A Bridge to Tomorrow

What are Tar Sands? Tar sands, also called oil sands, are a mixture of bitumen, sand, water, and clay Tar sands, also called oil sands, are a mixture of bitumen, sand, water, and clay Bitumen is a heavy, viscous, form of crude oil Bitumen is a heavy, viscous, form of crude oil

Sand Makes Oil? Strip mining is the most common method of extraction Strip mining is the most common method of extraction

Sand and Steam Make Oil? Since the 1980s, Steam Assisted Gravity Drainage (SAGD) has been used to access deep deposits Since the 1980s, Steam Assisted Gravity Drainage (SAGD) has been used to access deep deposits

Alaskan Peace Bridge or Energy Bridge?

United States Rest of World

Cost Analysis Heavy vs. Light Crude Extraction Costs: $2/b light crude, $15/b heavy crude

Analysis By Method Basic Cost Areas: Operation Sustaining capital Waste disposal Methods and % Recovered: Surface mining (90%) SAGD (60-70%) VAPEX (60-70%)

Low Cost Future Ranking: SAGD VAPEX Surface Mining References: Energy bulletin online The World Energy Book online Wascana Energy Inc. “Cost Analysis of Advanced Technologies for the Production of Heavy Oil and Bitumen in Western Canada”

Vapex (Vapor Extraction) Solvents instead of steam: Uses no water Uses no water Uses no heat Uses no heat Releases less CO2 Releases less CO2 Could increase recoverable oil by 10b barrels Could increase recoverable oil by 10b barrels Source: Petroleum Technology Research Centre

Closed-Loop Solvent Extraction Uses no water Uses no water 100% of solvents recycled 100% of solvents recycled 99% oil recovery 99% oil recovery “The process is economically and environmentally safe” “The process is economically and environmentally safe” U.S. Department of Energy Source:

“Costs” of Tar Sands as a Bridge Technology

Wetlands? Who really cares?

Real strategies to counteract environmental danger

Necessary evils: The Caterpillar 760

As gas becomes more expensive, we won’t care about the so-called “costs” of tar sand oil production: the environment, pshaw.