How brief is operated drilling machine

Can not do without the use of large-scale drilling engineering drilling machine equipment , and its good performance greatly enhance the speed and efficiency of drilling , especially in remote areas more extensive drilling machine with the crowd , then drilling machine in the end is how it works ?
Work drilling machine is pumping reverse circulation . Its working principle is: the role of atmospheric pressure , circulating liquid from the settling tank through the ring back to the ditch along the bottom of the borehole flow gap , because the turntable drive maide well drilling , rotary drill bit for drilling drive , negative pressure created by the suction of the mud debris drill mud suction lumen , then rose to tap into the sedimentation tank through mud circulating liquid precipitation continues to flow into the well bore , so again and again , forming a reverse circulation the drilling work .
Drill mud or water from entering the outflow from the wellhead . Positive circulation drilling machine . Mud or suck out water from the drill pipe from the wellhead inflows. To reverse circulation drilling machine . Reverse circulation drilling means ( mud or water ) in the drilling machine cycle way of saying , drilling rig will drill in drilling when generating muck , slag stone, by reverse circulation can bring these scum from the mud to the ground , and then through the mud after the settler back to drilling. Such non-stop cycle , and finally into the hole . Reverse circulation can bring out a larger diameter slag.