دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a visually apparent oil layer on water. Depending on the hydrocarbon type, sheens can develop with as little as 50 to 100 ppm.

n: the longitudinal curve of a vessels deck in a vertical plane. As a result of sheer, a vessels deck height above the baseline is higher (or lower) at the ends than amidships.

n: 1. the body of a tank. 2. the horizontal tank on a tank car that contains the liquid being transported. 3. the steel backing of a precision insert bearing on a bit.

adj: used to describe a tank that is filled to its shell capacity.

n: the distance between the bottom of the bottom angle of the tank and the top of the top angle.

metallic foil or multiwire screen mesh that is used to prevent electromagnetic fields from penetrating or exiting a transmission cable.

n: single or multiple conductors surrounded by a flexible metal shield for the purpose of preventing spurious signals from being carried.

n: an inert gas that is used as a shielding medium in pipe welding. Its primary purpose is to prevent oxidation of the weld at the point of contact with the pipe metal by excluding oxygen in the air from the area around the molten metal.