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Conventional Drilling

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by

Brie Loughlin-Murray

on 10 October 2014

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Transcript of Conventional Drilling

Conventional Drilling
Conventional Drilling
vs.
In situ Drilling (Oil Sands)
in Canada

Conventional Drilling
Conventional Drilling
Effects of Drilling and Extracting of Oil From Tar Sands on The Land
Effects of Oil Sands on The Land
Pollution Prevention
-In Situ Chemical Oxidation
-Conventional Drilling Product Substitution
Impact on Animals
Low Impact (Workers)
Societal Issues
Cancers, Cardiovascular and Respiratory Problems
Community Abandonment
Impact on Communities (including the Workers)
Dangerous Drilling Fluids (Workers)
Pollution (Communities)
In situ Drilling (Oil Sands)
Waste Production
Toxicity of Tailings Ponds
Dangers for Birds
Contamination of Local Watersheds
Generally Low Impact
PAH's (Polycyclic Aromatic Hydrocarbons)
In situ Drilling
Impacts on Health
Impacts on the Land
In the initial stage of Cyclic Steam Stimulation high temperature steam is injected into the oil deposit.
The steam is then left to soak the bitumen until it is able to be pumped up to the surface.
The bitumen is now at a low enough viscosity to be pumped up to the surface with the steam.
Steam Assisted Gravity Drainage (SAGD) Process
Impact on Animals
In situ Drilling (Oil Sands)
Impact on Communities (including the Workers)
Benefits of SAGD
90% of water extracted
No fresh water used
Permeability has increased
Same surface damage as conventional drilling
Effects of Drilling
-The removal of vegetation and topsoil
-Contamination of soil with petroleum products
- The construction needed will create topographic changes
-Long term bedrock disturbances from the emptying of wells and from construction of pipelines and access roads
-Possibility for immediate geological hazards (landslides, etc.) from the process of drilling and drainage patterns
- Possible acceleration of erosion
The oil sands don't particularly have many geological effects on the land from which the oil originated and is now being extracted but moreover effects on the forests and tundra. Those areas need pipelines and structures to be built for the transportation and storage of the oil thus in the short term destroying forests and habitats/ecosystems for certain species of organisms.
Conventional Drilling
Full transcript