دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a patented screen design that allows gravel packing slurry to flow past an annular bridge point that would normally stop the placement of gravel.

n: Breaks at different joints in turn in order to check every joint periodically and avoid joint galling and thread fracturing.

n: (A C) current in which the charge-flow periodically reverses and whose average value is zero. Compare direct current.

n: The current whose intensity and direction alter periodically with time.

n: an electric generator that produces alternating current.

n: (Ac) a white or gray midlevel cloud that appears as closely arranged rolls. This type of cloud is composed of either ice crystals or water droplets.

n: a bluish or gravish layer of uniform mid-level clouds that cover large portions of the sky. This type of cloud is composed of either ice crystals or water droplets.

aluminum and potassium sulfate compound. Used was water clairfying.

n: The drill pipe made by alloy of titanium and aluminium. It is lighter than the isometric drill pipe made by steel. It improves the drilling depth of rig, has good fatigue resistence and can absorb shake when connected above the drill collar.

n: It is a good dispersing agent used to avoid bit balling.

n: an alloy of copper and aluminum that may also include iron, manganese, nickel, or zinc. aluminum cable steel-reinforced