螺旋鉆桿/ High efficiency drill pipe
螺旋鉆桿是以四方或六方進行首尾連接，采用彈簧銷自動鎖合或半圓銷、直插銷、∪型銷、長圓楔型銷進行連接定位，可以快速連接的螺旋鉆桿。連接方便快捷，具有重量輕、彈性高、不易彎曲的特點，與其它鉆杄相比，具有操作方便，鉆進速度快的明顯優勢，因此稱為螺旋鉆桿。
螺旋鉆桿廣泛應用于煤層及近煤層地質條件下的鉆探、煤礦的探水和瓦斯排放鉆孔施工，也可用于物探和水利建設工程的錨固、鉆探施工等領域，分為通水型和不通水型。
High efficient spiral drill pipe is in a square or hexagonal were connected from head to tail. the spring pin automatic lock together or semicircle pin, straight bolt, U type pin, oblong wedge pin is connected with the positioning you can quickly connect the spiral drill pipe. Connecting convenient, with the characteristics of light weight, high flexibility, not easy to bend, compared with other drill pipe, has the advantages of easyoperation, high speed of drilling, so called the efficient screw drill pipe.
Efficient spiral drill pipe widely usedin drilling in the coal seam and near coal seam geological conditions, the coal mine to explore the water and gas drainage borehole construction, can also be used for anchorage, drilling, construction and other fieldsof geophysical prospecting and construction of water conservancy projects, water type and the barrier ofwater-saving
