دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a kind of cementer with larger internal diameter that its architecture is similar to multiplex cementing collar and it is switched on and off without switch stopper.

n: refer to full opening cementer.

n: protector that some pieces steel bdlts through sulfurizing are buckled on drill pipe and it is fixed with pin.

n: the conversion to direct current of both the negative and the positive pulsations of alternating current.

n: a device used to protect electrical equipment from overload. It has a wire that melts at high temperature to open the circuit.

an emergency shutdown device activated by fire or thermal overload. (Note: fusible links below the ignition point in a wellhead may not be activated (melted)).

a pressure relief valve that opens when temperatures increases sufficiently to melt an activation linkage.

n: an intrusive igneous rock with the same composition as basalt.

adj: the result of the sticking or adhesion of two mating surfaces of metal. not protected by a film of lubricant. and tearing due to lateral displacement.

thread damage from lack of lubrication or mismatched metals.

a ranking of metals from the easiest corrodible (magnesium) to the most difficult.