دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: one of the two large wheels joined by an axle and used to hold the drilling line on a cable-tool rig.

n: See band wheel.

old term for a large, often wooden wheel, in a cable tool rig.

an early drilling rig that uses a heavy chisel bit on a cable, dropped vertically, to pound through rocks.

n: a wire rope used to support the drilling tools. Also called the rotary line.

n: The wire rope used to support the travelling block, swivel, kelly and drill string.

the wire rope used to position tools on the floor. Also used to describe the wire rope on a cable tool rig.

n: a cable composed of steel wires twisted around a central core of fiber or steel wire to create a rope of great strength and considerable flexibility. Wire rope is used as drilling line (in rotary and cable tool rigs),coring line, servicing line, winch line, and so on. It is often called cable or wireline;however, wireline is a single, slender metal rod, usually very flexible. Compare wireline.