APPLICATION OF DRILL PRESSURE PUSHER

When drilling extended reach well, it is difficult to bring efficient drill pressure and torque because of great friction, Install drill pressure pusher can effectively solve this problem. Introduced structure and operational principle of drilling pressure pusher, pushing force calculation, classify and applications in external were also introduced. The intension of force add on bit are affect by structure of pusher and other drilling parameters, most drilling pressure can be fulfilled by normalized, light and cascade pusher, reasonable use of drilling pressure pusher can improve drilling performance, and enhance drilling rate, decrease drilling cost.