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2. Extraction of petroleum - Wikipedia

   en.wikipedia.org/wiki/Extraction_of_petroleum

   Petroleum is mostly recovered from oil drilling. Seismic surveys and other methods are used to locate oil reservoirs. Oil rigs and oil platforms are used to drill long holes into the earth to create an oil well and extract petroleum. After extraction, oil is refined to make gasoline and other products such as tires and refrigerators.

3. Enhanced oil recovery - Wikipedia

   en.wikipedia.org/wiki/Enhanced_oil_recovery

   Enhanced oil recovery. Injection well used for enhanced oil recovery. Enhanced oil recovery (abbreviated EOR ), also called tertiary recovery, is the extraction of crude oil from an oil field that cannot be extracted otherwise. Although the primary and secondary recovery techniques rely on the pressure differential between the surface and the ...

4. Health and environmental impact of the petroleum industry

   en.wikipedia.org/wiki/Health_and_environmental...

   The toxicity of petroleum related products threaten human health. Many compounds found in oil are highly toxic and can cause cancer ( carcinogenic) as well as other diseases. [23] Studies in Taiwan link proximity to oil refineries to premature births. [26] Crude oil and petroleum distillates cause birth defects.

5. Expeller pressing - Wikipedia

   en.wikipedia.org/wiki/Expeller_pressing

   Expeller pressing (also called oil pressing) is a mechanical method for extracting oil from raw materials. The raw materials are squeezed under high pressure in a single step. When used for the extraction of food oils, typical raw materials are nuts, seeds and algae, which are supplied to the press in a continuous feed.

6. Athabasca oil sands - Wikipedia

   en.wikipedia.org/wiki/Athabasca_oil_sands

   The Athabasca oil sands, also known as the Athabasca tar sands, are large deposits of bitumen, a heavy and viscous form of petroleum, located in northeastern Alberta, Canada. These reserves are one of the largest sources of unconventional oil in the world, making Canada a significant player in the global energy market. [3]

7. Microbial enhanced oil recovery - Wikipedia

   en.wikipedia.org/wiki/Microbial_enhanced_oil...

   Microbial enhanced oil recovery. Microbial Enhanced Oil Recovery ( MEOR) is a biological-based technology involving the manipulation of functions or structures within microbial environments present in oil reservoirs. The primary objective of MEOR is to improve the extraction of oil confined within porous media, while boosting economic benefits.