METHOD AND APPARATUS FOR ORIENTING A DOWNHOLE TOOL

摘要

The present disclosure provides for a sensor assembly including a rotating sub (101) coupled to a drill string and a drive shaft (103), a nonrotating sub (105) positioned around the drive shaft, the nonrotating sub including an outer tubular cover (105) and a sensor collar (114). The sensor collar is coupled to the outer cover by a drive assembly (117) for rotating the sensor collar relative to the outer cover.