Continuous directional coring and deflecting machine tool with dual tubes for outer guiding and inner drilling and deflecting method thereof
A machine tool, directional device technology, applied in drilling equipment and methods, directional drilling, drill pipe and other directions, can solve the problems of directional drilling and deflecting technology that cannot be continuously cored
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[0039] A double-pipe outer-guiding inner-drilling directional continuous coring tool, as shown in Figure 1(a) and Figure 1(b), includes an outer pipe 30, which is connected to a guide pipe shoe 32; The inner pipe 29 is sleeved in the pipe 30, and the inner pipe 29 is connected to the hydraulic pressure directional device 40 in the hole, and the lower end of the hydraulic pressure directional device 40 in the hole communicates with the upper end of an elastic joint 50 through an intermediate joint 2; The upper end of the water pressure directional device 40 in the hole is connected with a hollow water connection 1, and the other end of the water connection 1 is connected with a drill pipe; the lower end of the elastic joint 50 is connected with a male joint 36, and the lower end of the male joint 36 is connected with the A core tube 33 is connected, and the lower end of the core tube 33 is connected with a diamond drill bit 35 through a snap spring 34 ; a positioning keyway 31 i...
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