petroleum

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petroleum

 [pĕ-tro´le-um]
a thick natural oil obtained from beneath the earth. It consists of a mixture of various hydrocarbons of the paraffin and olefin series.

pe·tro·le·um

(pĕ-trō'lē-ŭm),
A mixture of liquid hydrocarbons found in the earth in various parts of the world and believed to be derived from fossilized animal and plant remains; the source of petrolatum, in addition to its use for lighting and heating purposes.
Synonym(s): coal oil, rock oil
[L. petra, rock, + oleum, oil]

petroleum

/pe·tro·le·um/ (pĕ-tro´le-um) a thick natural mixture of gaseous, liquid, and solid hydrocarbons obtained from beneath the surface of the earth.
petroleum benzin  a colorless, volatile, flammable fraction from petroleum distillation, containing largely hydrocarbons of the methane series; it has been variously described as a special grade of ligroin or as a separate but similar fraction with a lower boiling range. It is used chiefly as an extractive solvent.

pe·tro·le·um

(pĕ-trō'lē-ŭm)
A mixture of liquid hydrocarbons found in the earth in various parts of the world believed to be derived from fossilized animal and plant remains.
[L. petra, rock, + oleum, oil]

petroleum

a thick natural oil obtained from beneath the earth. It consists of a mixture of various hydrocarbons of the paraffin and olefin series. See crude petroleum oil.

petroleum jelly
petrolatum.
References in periodicals archive ?
That committee submitted its report to the state government in 2012, whith confirmed the presence of conventional oil and gas in the basin.
The conventional oil and gas drilling process involves the boring of a well, a reservoir that has pressure, from which oil flows out of the ground.
COGAC will advise DEP in the development of regulations relating to conventional oil and gas extraction.
Light tight oil is much more expensive to produce than conventional oil.
Many energy economists who have observed the way these price-hawk OPEC/NOPEC exporter states have behaved since the 1971 Nixon Shock concerning the US$'s convertibility to gold (see the Nixon Shock in Google) are saddened to see most of them still over 90% dependent on conventional oil.
He also acknowledged the clear and growing challenges posed by shale oil to conventional oil.
Commenting on the announcement, chief executive Samir Brikho said: "We continue to see good growth in conventional oil and gas, with new contract awards, such as the PS68m contract to deliver the hook-up and commissioning services for the two new Clair Ridge platforms for BP and its co-venturers, boosting activity in the North Sea, in particular.
Analysts argue that factors such as the cost of the production, environment threats and alternative markets will ensure there is continued demand for conventional oil even if the US market is saturated with shale oil.
For decades, North Dakota produced millions of barrels from wells drilled into conventional oil accumulations found in the Madison and Lodgepole formations.
The recovery factor for conventional oil currently stands above 50 per cent.
In a letter to Secretary of State Hillary Clinton, Waxman said, "Extracting tar sands bitumen and upgrading it to synthetic crude oil produces roughly three times greater greenhouse gas emissions than producing conventional oil on a per unit basis.
The USGS figures that the total world endowment of conventional oil resources is equivalent to about 5.

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