دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

Algerian.

carbon and hydrogen compounds that may be branched of straight chained. Aliphatics may be paraffin (saturated) or olefinic (unsaturated).

n pi: hydrocarbons that have a straight chain of carbon atoms. Compare aromatic hydrocarbons.

n: a series of open-chained hydrocarbons. The two major classes are d1e series with saturated bonds and the series with unsaturated bonds.

n: a substance having marked basic (alkaline) properties, such as a hydroxide of an alkali metal. See base.

n: Any compound having pH properties higher than the neutral state.

a strongly basic solution.

a strongly basic metal such as sodium or potassium.

basic or pH over 7.

n: a method of improved recovery in which alkaline chemicals such as sodium hydroxide are injected during a water flood or combined with polymer flooding. The chemicals react with the natural acid present in certain crude oils to form surfactants within the reservoir. The surfactants enable the water to move additional quantities of oil from the depleted reservoir. Compare chemical flooding, polymer flooding, water flooding.