Abstract

As Canadian crude bitumen production from oil sands has increased in recent decades, the nation’s oil and gas industry has become a significant contributor to national greenhouse gas emissions. Canada has developed carbon emission reduction targets to meet its Nationally Determined Contributions and Mid-Century Strategy goals. A detailed profile of energy consumption pathways in the oil sands industry is necessary to identify potential areas of improvement and to monitor progress toward meeting emissions reduction targets. Much of the existing literature for oil sands modeling provides input assumptions with different technological boundaries. For a set of oil sands extraction and upgrading technologies, this study first reviews the literature and then quantifies energy input requirements, CO2 emissions, and operating costs for a set of consistent technological boundaries and energy units. Summary results refer to requirements and costs at the production facility, excluding transportation and blending costs. An energy system diagram of oil sands production that matches these boundaries is provided, which can be used by integrated assessment models, oil sands companies, and government ministries to evaluate the present and future energy consumption and emissions pathways of the oil sands industry.

Highlights

  • Published: 5 October 2021Canada’s oil sands are one of the largest unconventional fossil fuel reserves in the world, comprising 10% of the global total [1]

  • In the FUNNEL-greenhouse gases (GHG)-OS model [29], energy consumption of delayed coking was estimated as 3.34 GJ to upgrade 1 m3 of bitumen, with 42% of the total energy required for hydrogen production

  • This study has reviewed the literature associated with historical and current technology profiles for oil sands production

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Summary

Introduction

Canada’s oil sands are one of the largest unconventional fossil fuel reserves in the world, comprising 10% of the global total [1]. As Canadian government regulators and corporations have adopted GHG emissions reduction targets, oil sands producers have been increasing production. This study first reviews recent work published on the oil sands industry, concentrating on energy consumption, greenhouse gas emissions, and operating costs. Based on this information, it standardizes all values (energy consumption and operating costs) and provides an energy system diagram for the oil sands. The result is a comprehensive and consistent data set for application to energy system and integrated assessment modeling research These values can inform further cost–benefit analyses and environmental impact assessments, and provide data inputs for studies using partial equilibrium models and cost optimization models.

Energy Efficiency of the Oil Sands Industry
Surface Mining
In Situ Production
Energy Efficiency of Upgrading
Delayed Coking
Hydroconversion
Greenhouse Gas Emissions from the Oil Sands Industry
Greenhouse Gas Emissions from Upgrading
Noncombustion and Land Use Associated Emissions
Costs in the Oil Sands Industry
Surface Mining Costs
SAGD Costs
Upgrading Costs
Findings
Discussion
Conclusions
Full Text
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