oil shale
41Shale oil — This article is about synthetic oil produced by pyrolysis, hydrogenation, or thermal dissolution from oil shale. For crude oil stored in shale reservoirs, see Tight oil. Shale oil, known also as kerogen oil or oil shale oil, is an unconventional… …
42shale oil — petroleum distilled from oil shale. [1855 60] * * * Synthetic crude oil that is extracted from oil shale by pyrolysis, or destructive distillation. The oil obtained from oil shale cannot be refined by the methods that have been developed for… …
43Oil reserves in the United States — United States oil reserves peaked sharply in 1970 Proven oil reserves in the United States are 21 billion barrels (3.3×10^9 m3), excluding the Strategic Petroleum Reserve. The U.S. Department of the Interior …
44shale oil — noun oil extracted from oil shale by heating • Hypernyms: ↑oil * * * noun : an oil obtained from oil shale by heating usually in retorts : the crude dark green to brown oil from the first distillation that on refining yields liquid fuels and… …
45shale — shalelike, shaley, adj. /shayl/, n. a rock of fissile or laminated structure formed by the consolidation of clay or argillaceous material. [1740 50; orig. uncert.; cf. obs. shale to split (said of stone), to shell, deriv. of shale shell, husk, OE …
46Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …
47Shale — A type of sedimentary rock found in the earth s crust composed chiefly of a combination of silt and clay. A great deal of the earth s usable fossil fuels are found in shale formations. There are many different types of shale, such as oil shale… …
48Oil well — The pumpjack, such as this one located south of Midland, Texas, is a common sight in West Texas. An oil well is a general term for any boring through the earth s surface that is designed to find and acquire petroleum oil hydrocarbons. Usually… …
49Oil reserves in Venezuela — Orinoco Oil Belt assessment unit, USGS The proven oil reserves in Venezuela are claimed to be the largest in the world, according to an announcement in early 2011 by President Hugo Chavez and the Venezuelan government. The reported proven… …
50Oil reserves in Russia — There are several different estimates of proven oil reserves in Russia. Most estimates include only Western Siberian reserves, exploited since the 1970s and supplying two thirds of Russian oil, and not potentially huge reserves elsewhere. In 2005 …
