دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: 1. to collect a mass of sticky consolidated material, usually drill cuttings, on drill pipe, drill collars, bits, and so forth. A bit with such material attached to it is called a balled-up bit. Balling up is frequently the result of inadequate pump pressure or insufficient drilling fluid. 2. in reference to an anchor, to fail to hold on a soft bottom, pulling out, instead, with a large ball of mud attached.

n: The phenomenon that drill bit or drill tool is surrounded by cutting and viscous mud in drilling progress.

n: A kind of anionic surface active agent. Used as anti-balling agent to clean drill tool and prevent balling.

n: a kinds of method that relieve balling on the bit.

n: The ways that can make the cuttings and clod on the cone or tooth of bit falling off through the measure of picking up ,setting down and rotating the drill string .