| abstract |
A multi-mode pilot drilling tool, comprising: drilling tool mechanism, location cabin and the driver that commutates that sets gradually, wherein: the reversing driver is connected with the hydraulic oil pipe to provide power for the drilling tool mechanism, the rotating end of the reversing driver is connected with the positioning cabin, and the positioning cabin is internally provided with a positioning sensor and a transmission cable connected with the positioning sensor, so that the position information is provided for a navigation positioning system to be used for positioning and direction control. The internal positioning sensor is used for measuring the posture and the posture of the drill bit in real time, the reversing driver is controlled externally to perform directional drilling, different drill bits and drilling tools are replaced according to different geology to perform drilling, and the drilling efficiency is greatly improved. |