دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a glass-stem thermometer totally encased in a glass sheath, which provides air space between the thermometer and the liquid in which the unit is immersed.

n pi: special segmented weights attached to the guy wires of a guyed compliant platform that keep the guy wires taut as the platform jacket moves with the waves and current of the water. As tension on a guy wire is lessened, one or more segments of the weight drop to the seafloor and re-establish tension on the wire. As tension increases on a guy wire, the tension pulls one or more segments off the seafloor so that the wire is not over stressed.

n: an offshore platform jacket that flexes with wind, wave, and driven through guides attached to outside legs of the jacket.

n: used in emulsion treating to heat noncorrosive emulsions that are under comparatively low pressure. Types are tubular, fluid-jacket, internal firebox, and volume, or jug-type. Compare indirect heater.

n: boiling, especially as applied to a system to remove heat from engine jacket water, wherein the water is permitted to boil and the evolved vapours are condensed in air-fin coolers.

n: coolant, such as water, that circulates through spaces in the engine block.

n: a compliant offshore drilling platform used to drill development wells. The foundation of the platform is a relatively lightweight jacket on which all equipment is placed. A system of guy wires anchored by clump weights helps secure the jacket to the seafloor and allows it to move with wind and wave forces. See platform rig.

n: 1. a tubular piece of steel in a tubing liner-type of sucker rod pump, inside of which is placed an accurately bored and honed liner. In this type of sucker rod pump, the pump plunger moves up and down within the liner and the liner is inside the jacket. 2.the support structure of a steel offshore production platform;it is fixed to the seabed by piling, and the superstructure is mounted on it.

the steel support structure from the sea floor to the top sides.