دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a kind of rheological parameter instrument mad by HBC corporation,able to measure the visicosity of higher viscous fluid

hydrocarbon pore volume.

n: 1. the height of a column of liquid required to produce a specific pressure. See hydraulic head. 2. for centrifugal pumps, the velocity of flowing fluid converted into pressure expressed in feet or metres of flowing fluid. Also called velocity head. 3.that part of a machine (such as a pump or an engine) that is on the end of the cylinder opposite the crankshaft. Also called cylinder head.

n: refer tohydraulic head

n: in crane operations, the vertical distance the crane can hoist a load before it strikes an obstruction.

n: the gate valve nearest the pump or compressor on oil or gas lines.

n: a condition that occurs when the cutters of a bit drag on a formation and become very hot because of friction and then are cooled by the drilling fluid;the rapid cooling causes small cracks (heat checks) to develop.

n: see heating value.

n: the quantity of energy required to evaporate 1 mole of a liquid at constant pressure and temperature. heat pump n: an electric heater that is similar to an air conditioner. It heats and cools from a single system by reversing the flow of gas from the compressor to coils.

n: container or vessel enclosing an arrangement of tubes and a firebox in which an emulsion is heated before further treating, or in which natural gas is heated in the field to prevent the formation of hydrates.