Well drilling rigs drilling in order to meet the needs of different strata, increase drilling efficiency, multi-well drilling rig forward and fully hydraulic steering gear and direction of development: that a wide range of drilling rig equipment and accessories, can impact more drilling mode type, rotary and DTH, etc; also use mud wash well, wash well and compressed air positive, reverse circulation washing wells and other methods. Works well drilling rigs are pumping reverse circulation type. It works are: the role of atmospheric pressure, the circulating fluid from the settling tank through the return ditch along the annular gap flow to the wellbore bottom, because the turntable drive drill, drill drive rotation of drilling, established by the mud pump suction vacuum the debris drill mud suction lumen, then rose to the faucet, the mud pump into the sedimentation tank, circulating fluid continues to flow after precipitation wellbore, so again and again, forming a reverse circulation drilling work. Work drilling machine is pumping reverse circulation type. Its working principle is: the role of atmospheric pressure, circulating liquid from the settling tank through the return ditch along the annular gap flow to the bottom of the borehole 150 meters drilling machine, then drill wheel drive, drive rotation of the drill bit Jin, established by the mud pump suction vacuum the debris drill mud suction lumen, then rose to the faucet, the mud pump into the sedimentation tank, circulating fluid continues to flow after precipitation wellbore, again and again 150 meters drilling machine manufacturers, forming a reverse circulation drilling work. Buy drilling rigs should be noted that: many types of drilling machines, playing well, then you buy YT series rig, piling holes, then bought 150 meters of reverse circulation drilling rig drilling machine works, play well, then you buy the stone impact drill, fight, then to buy pneumatic rock drills, no water, no electricity, fast, 200 meters, 20 hours on it, generally used for air-condition well, the price is too high, 100,000 yuan is estimated to buy 200 n circulation drill, the machine does not fit fieldstone bottom 150 meters drilling machine production video, you can play rock, 200 meters normally takes 20-30 hours, 200 meters of construction depth is accident-prone sections, generally up to two percent of accidents . 150 m drilling machine drilling machine how to sell _150 m _ Prius Prius provided by Luoyang Drilling Equipment Co., Ltd. Luoyang Prius Drilling Equipment Co., Ltd. (www.zuanji888.com/) strong, credible, Luoyang in Henan and other industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Prius into the brilliant and you work for a better future!