The present invention relates to a drilling tool
assembly design method for improving drilling efficiency and collecting
open hole information during vertical drilling. The drilling tool
assembly structure includes an
information storage short section, a
bypass valve assembly, an anti-drop assembly, a motor assembly, a universal shaft assembly, and a transmission shaft assembly from top to bottom. The screw
drill is provided with a mechanical push-to-type vertical drilling short section, a hydraulic
impact device, and a transmission assembly on its transmission shaft assembly from top to bottom; the
information storage short section, the
bypass valve assembly, the release assembly, the motor assembly, the universal shaft assembly, the mechanical push-to-vertical drilling assembly, the hydraulic
impact device, and the transmission assembly in the drilling tool
assembly structure are threadedly connected from top to bottom; the release plate, the release connecting rod, the motor rotor, and the
ball joint on the universal shaft are threadedly connected in sequence; the
ball joint under the universal shaft, the transition transmission center shaft, and the lower joint are threadedly connected from top to bottom. The present invention integrates screw
drill, rotary drilling, vertical drilling, and
logging while drilling, reduces production costs, and improves drilling efficiency.