دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The appropriate apply of new drill pipe or drill collar.

unscrewing a joint of pipe of part of a BHA.

n: see starting torque. break circulation v: to start the mud pump for restoring circulation of the mud column. Because the stagnant drilling fluid has thickened or gelled during the period of no circulation, high pump pressure is usually required to break circulation.

n: 1. a failure of equipment.2. in a fracture treatment or a squeeze job, the failure of formation rock to withstand pressure, allowing it to rupture. adj: pertaining to the amount of pressure needed at the wellhead to rupture the formation in a fracture treatment or a squeeze job (as in formation breakdown pressure).

fracture.

n: the maximum torque an induction motor will develop as load is increased, starting from full speed at no load until the motor begins to stall.

n: a surface wave that has become too steep to be stable.

a chemical added to a gel that breaks down the gellant structure.

n: see bit breaker adapter.

n: contacts that interrupt the current in the primary circuit of the ignition system in a spark-ignition engine.

n: The two symmetric troughs manufactured in blank bits. Be convenient for clicking and breaking when desorption of drill bit.

v: unscrewing the drill stem into single joints and placing them 00 the pipe rack. The operation takes place 00 completion of the well, or in changing from one size of pipe to another. See lay down pipe.

n: Put the singles which are unloaded from drill pipe stand on the pipe carrier.