الخميس، 16 ديسمبر 2010

Be out of oil
The oil from the plant and animal origins have accumulated one on top of some millions of years due to factors of pressure and heat and chemical decomposition produced by the bacteria of the elements carbon, hydrogen, and which, united with each other made the defendant liquid oil (petroleum).
Which run through the rocks with spaces allow the passage of oil called called its "porosity factor and as a result of pressure under the earth's surface is the oil through the rock to the well engraved oil production.
It is worth mentioning that the oil reservoir be of economic benefit when it resides in the area of oil reserve endocrine rocks that prevent oil from escaping out of the reservoir and provide a porous rocks allow the passage of oil into the well during production

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