دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a projecting rim or edge (as on pipe fittings and openings in pumps and vessels),usually drilled with holes to allow bolting to other flanged fittings.

a common, high pressure wellhead connection, using bolt attached flange plates and metal-to-metal seals.

n: a device that holds an orifice plate centred in the line in which a fluid is flowing. It consists of two pieces that are joined by placing them together and tightening bolts and nuts. The orifice plate fits between the two pieces. To remove or inspect the orifice plate in a flanged fitting. the line must be bled and the flow of fluid rerouted so that no pressure exists on the fitting.

n: a two-piece orifice fitting with flanged faces that are bolted together.

n: gas released from liquid hydrocarbons as a result of an increase in temperature or a decrease in pressure.

n: 1. a form of resistance butt welding used to weld wide, thick members or members with irregular faces together, and tubing to tubing. 2. in pipeline construction, a welding technique in which low voltage is applied to each pipe joint while the ends are in light contact. This contact produces a rapid arcing, called flashing. After the pipe ends have been adequately heated, the current is abruptly increased, and die pipe joints are brought together rapidly and forcefully. The current is then reduced, excess flash material in the pipe is cleared. and the weld is completed.

n: The completion plan can‘t be made in advance during drilling multilayer exporation well ，the initiative plan could be made only according the latter drilling and well log information and then plan for completing the design of wellbore equipment accordin

n: an enclosure built into the roof of a floating roof tank to contain and guide the float of an automatic tank gauge.

n: a lightweight covering of either metal or plastic material designed to float on the surface of the liquid in a tank. Alternatively, it may be supported by a float system so that it is just above the free liquid surface. Used to minimise the evaporation of volatile products in a tank.