Nonsustainable energy Drilling for oil Definition Renewable resources

Non-sustainable energy: Drilling for oil

Definition �Renewable resources: any natural resource that can be replenished naturally with the passage of time �Nonrenewable resources: natural resource which cannot be reproduced, grown, generated Resources that are consumed much faster than nature can create them

Definition* �Crude oil/petroleum - "unprocessed" oil, the stuff that comes out of the ground �Hydrocarbons – a compound of hydrogen and carbon

Crude oil 1. Remains of animals and plants that lived millions of years ago in a marine (water) environment before the dinosaurs 2. Over the years, the remains were covered by layers of mud 3. Heat and pressure from these layers helped the remains turn into what we today call crude oil

Crude oil refinery

Usage �Kerosene �Waxes �Lubricants �Asphalt �Rubber �Textile �Sport equipments Basket balls Hockey sticks

Where to drill? �Geologists examine surface rocks and terrain, with the additional help: satellite images gravity meters magnetometers

Oil sands

Bitumen �A layer of water and heavy oil that cover grains of sand

Where is oil crude oil found?

Alberta’s oil sands

Consideration before beginning 1. Land must be cleared and leveled May need to build roads 2. Need a source of water 3. Waste disposal

Flattening out the land

Alberta

Extracting bitumen �Too thick to pump out so bitumen must be dug out

Extracting bitumen

Oil

Oil

Pumping oil �Christmas Tree – fast flowing wells �Grasshopper – slow flowing wells

Transporting oil

Offshore drilling

Detecting oil in the ocean

Problems with offshore drilling BP oil spill

Underwater

Gulf of Mexico