دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an atmospheric fin tube exchanger that utilises air for cooling. Ambient air contacts the external fins by fanforced or natural draft. Also called air-fin unit or aerial cooler.

n: see draft.

n: 1. a flat-decked, shallow-draft vessel, usually towed by a boat. Barges are not self-propelled. They are used to transport oil or products on rivers, lakes, and inland waterways. Also, a complete drilling rig may be assembled on a barge and the vessel used for drilling wells in lakes and in inland waters and marshes. Similarly, well service and workover equipment can be mounted on a barge. 2. an offshore drilling vessel built in the shape of a ship. Unlike a ship, however, it is not self-propelled. Also called a drill barge.

marine vessel without its own propulsion.

deep draft caisson vessel.

n: a device that measures the saturation, or the amount, of each fluid in a core sample by distilling the fluid from the core with heat. The core sample is heated to about 350�F (176.7�C). The fluids are vaporized and cooled until they condense in receiving tubes, where they are measured.

n: 1. the vertical distance between the bottom of a vessel floating in water and the waterline. 2. a written order drawn on a solvent bank that authorizes payment or a specified sum of money for a specific purpose to a named person. A draft mayor may not be negotiable, depending on how it is drawn up. Also called bank draft.

n pi: numbers placed on the sides or ends of a floating offshore drilling rig to indicate its draft.

n: 1. an excess of draft at the stem of a ship or drill ship, as compared to the bow.2.friction between a moving device (such as a bit) and another moving or nonmoving part (such as the formation). 3. the bending of rock strata adjacent to a fault.

n: The extra force required to move the drill string owing to the drill strings being in contact with the wall of the borehole.

n: the depth at which a drilling rig rests below the waters surface.

n: air blown into a furnace or other equipment by a fan or blower.