A method for horizontally drilling filtrate intake well and apparatus for clogging front tip of well

摘要

The present invention induces a smooth rear discharge action of the earth and sand are excavated by rotating the exterior casing and the inner rod of the screw of the bucket in the reverse direction to each other by performing a simultaneous drilling action of the outer portion and the central portion by the drilling pushing structure of the second drilling efficiency at the same time capable of improving horizontal chwisujeong taking it from the drilling completion and disconnect the drilling tool of the screw rod that may by used as a closure of the drilling tip end (blocking), the device can effectively prevent the earth and sand introduced during the drawing of the screw rod drilling front end gravel It provides horizontal chwisujeong chakjeong bangbeopreul with an inlet-proof closure device and the closure device.