دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The process in which the bit continually breaks the formation and deepend the wellbore. It is controled by the driller who operates the brake crank and set down the drilling string to keep definite weight on bit.

n: A component of damping mechanism of drilling rig. Brake force of brake crank is passed to brake staple because one end is connected with brake crank and the other end is connected with brake staple.

n: A component of damping mechanism of drilling rig. It is a crank that connects brake staple through links.

n: everything from the dead ends of the brake bands to the brake lever.

n: The heaver mechanism used to enlarge force produced by brake crank to satisfy brake cylinder. Made by brake crank and flex links.