A drill hole drilling method and drilling drilling assembly borehole configurations Jywlywjyt geological formations

摘要

The invention discloses a drilling tool assembly for drilling in geological formation, which includes a drilling tool assembly for drilling in geological formation, which can position the drilling string in the drilling, and a column is arranged on the drill bit. The drilling head, pump unit and pump unit can be placed in the drilling hole, whereinThe pump device includes a pump device, a method for preventing leakage, a sealing component for sealing the first hole, a bottom sealing device for preventing the second hole, a top sealing device for preventing the second hole, and a sealing device for preventing leakage, so that the pump device can A drilling fluid that is drilled from a part of a well to a part of a well to a second part of a well.