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The Creation…. Formed hundreds of millions of years ago When Canada was covered by shallow seas, remains of marine animals fell to sea floor Accumulated into thick layers (over the years…) Over time, the immense weight compacted these layers into rock

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Presentation Transcript
the creation
The Creation…
  • Formed hundreds of millions of years ago
  • When Canada was covered by shallow seas, remains of marine animals fell to sea floor
  • Accumulated into thick layers (over the years…)
  • Over time, the immense weight compacted these layers into rock
  • Bacterial action, heat, and pressure converted marine animals into oil and gas….Simple right?
the traps
The traps…

You will notice that all 3 have a nonporous rock cap and a porous rock source.  The porous rock allows the oil to seep into the cavity (like a sponge) and the nonporous rock prevents the oil from leaving (like a cap).

fold trap
Fold Trap

The up fold or anticline in the layers of the earth's crust form the reservoir.

fault trap
Fault Trap

The vertical movement of the earth's crust forms a v-shaped reservoir.

stratigraphic trap
Stratigraphic Trap

Has a former limestone reef as its porous rock feeding the reservoir.

the searching
The Searching…
  • Finding oil in amounts that will make recovery worth-while is a challenge
  • Geologists must look at special geologic structures that have trapped oil
  • Difficult because deposits may be 100’s of meters underground (if exist at all!!)
the tricks
The Tricks…

Geologists have many tricks to search for oil…

  • Looking for rocks on the surface that contain oil
  • Searching for clues (fossils) in the rocks that would indicate the “right conditions” for formation
  • Using geological records obtained by drill cores
  • Conducting seismic surveys to locate oil rock structures
  • Sniffing the ground (bad idea)
the drilling
The Drilling…

Expensive! And will have one of 3 results:

  • No oil – abandoned
  • Oil is found – amount not enough to make profitable (plugged until later date)
  • Oil is found – Deposit is large enough to develop
the recovery
The Recovery…

The removal of oil and gas from the ground proceeds in one or two ways:

  • Flowing Wells – natural pressure sufficient to bring oil to surface
  • Non-Flowing Wells – electric pumps must be used to bring oil to surface

*only about 60 % of oil in most deposits can be recovered. Increasing that by 5% would the same as finding another large oil field

the sources in canada
The Sources in Canada…

Production concentrated in Alberta and adjoining provinces: Saskatchewan/BC

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Alberta Oil Sands
  • Mined from huge deposits in NE Alberta
  • Bitumen: is found around individual sand particles
  • Oil sand is easily dug up and then separated
  • Bitumen is processed to make crude oil
  • Cost is very high, but with decrease of conventional oil will be a huge source of income for Canada in near future
the other sources
The Other Sources…

Newfoundland and Labrador became significant producers in 1997 with opening of Hibernia offshore oil project. Production will increase as additional projects are developed.

at what cost
At What Cost?
  • http://www.ifitweremyhome.com/disasters/bp