دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a type of portable service or workover rig that is self-propelled, using power from the hoisting engines. The drivers cab and steering wheel are mounted on the same end as the mast support;thus the unit can be driven straight ahead to reach the wellhead. See carrier rig.

n: the relatively small pneumatically operated engine on an air hoist, or tugger.

n: see hoisting engine.

a winch line or other device that can pull equipment into place.