دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A kind of U-shape bolt,which have thread at two end ,usually be used to chuck the wire rope.

n: a U-shaped tube. v: to cause fluids to flow in a U-tube without adding an outside force. For example, heavy mud in the drill stem will force light mud in the annulus to flow.

a fluid flow path that has a low spot. In a well, the U-tube is represented by the tubing and the annulus with the bottom of tubing as the low spot. Where two different density fluids are involved, the effect is that the lower density fluid will be pushed

n: A kind of ways be used to solve the differential pressure sticking,which use the u-tube principle to decline the fluid level of hole.

n: We can think the circular and the inner of well as the two side of u-tube.Their affection on the bottom hole must be equit.

n: the action of fluids flowing in a U-tube (as heavy mud forcing lighter mud down the drill stem and up the annulus).

underbalance.

underbalance drilling.

ultrasonic borehole imager.

underbalance operations.