دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

Kerogen that lacks distinct form or shape under microscopic exam. May describe oil prone Kerogen.

carbon with a type of Kerogen content that has low potential to generate hydrocarbons (generally woody carbon).

An initial stage of oil that never developed completely into crude. Typical of oil shales.

Liptinite;(usually lacustrine in origin) has a high hydrogen to carbon ratio and a low oxygen to carbon ratio. Oil prone with a high yield – up to 80%.

Exinite;(naphthenic) has an intermediate hydrogen to carbon and oxygen to carbon ratio. Usually formed from marine organic matter (planton) in a reducing environment. Oil and gas prone with yields of 40 to 60%.

Vitrinite;has a low hydrogen to carbon and high oxygen to carbon ratio. Usually dry, low quality gas prone with low yields. Source is terrestrial vascular plants. Humic coal precursor.

Inertinite;very low in hydrogen, principally a dead carbon. No oil or gas generating gas potential.

carbon with a type of Kerogen content that has a high potential to generate hydrocarbons.

n: a shale containing hydrocarbons that cannot be recovered by an ordinary oilwell but that can be extracted by mining and processing. The cost of mining and treatment of oil shale is generally too great to compete with the cost of oilwell drilling.

a mudrock or mudstone, composed of a large amount of kerogen or similar deposit, which will yield oil only when refined.

an indication of source rock potential measured by the conversion of kerogen into free hydrocarbons (PI, S1/(S1+S2)): For PI < 0.08, the source is immature, for PI of 0.08 to 0.5, the source is in the oil window, for PI > 0.5, the source is in the gas win