low-grade oil
1Oil shale geology — Main article: Oil shale Outcrop of Ordovician kukersite oil shale, northern Estonia. Oil shale geology is a branch of geologic sciences which studies the formation and composition of …
2Oil shale extraction — is an industrial process in which kerogen mdash;a mixture of organic chemical compounds (including hydrocarbons) found in oil shale mdash;is converted into synthetic crude oil through pyrolysis. In pyrolysis, oil shale is heated in the absence of …
3Oil pastel — (also called wax oil crayon) is a painting and drawing medium with characteristics similar to pastels and wax crayons. Unlike soft or French pastel sticks, which are made with a gum or methyl cellulose binder, oil pastels consist of pigment mixed …
4Oil shale in China — is an important source of unconventional oil. A total Chinese oil shale resource amounts of 720 billion tonnes, located in 80 deposits of 47 oil shale basins. This is equal to 48 billion tonnes of shale oil.[1] At the same… …
5Oil shale in Estonia — Outcrop of Ordovician kukersite oil shale, northern Estonia Oil shale in Estonia is an important resource for the national economy. Estonia s oil shale deposits account for just 17% of total deposits in the European Union but the country… …
6Oil shale — For the scientific technical journal, see Oil Shale (journal). Not to be confused with Shale oil or Tight oil. Oil shale Sedimentary Rock Combustion of oil shale Composition …
7oil — A substance that lubricates and cools the moving parts of the engine and reduces the formation of rust and corrosion. It contains additives which fights the corrosion of bearings, keeps small particles in suspension, reduces engine wear, and… …
8Oil shale industry — Stuart oil shale pilot plant (now dismantled) Oil shale industry is an industry of mining and processing of oil shale a fine grained sedimentary rock, containing significant amounts of kerogen (a solid mixture of organic chemical compounds), from …
9Oil City Area School District — Address 825 Grandview Road Oil City, Pennsylvania, Venango, 16301 …
10Oil Springs, Kentucky — Oil Springs   Unincorporated community   …
