Inner-chip removal polycrystalline diamond compact (PDC) bit
A technology of internal chip removal and drill bit, which is applied in the direction of drill bit, drilling equipment, earthwork drilling and production, etc. It can solve the problems of drilling termination, easy formation of mud balls, and inability to deal with mud balls
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] Such as Figure 1 to Figure 3 As shown, the present invention provides a PDC drill bit (Polycrystalline Diamond Compact bit, polycrystalline diamond compact bit) with internal chip removal, which includes a drill body 1, a cutting portion 2 and an anti-mud package 3, wherein: the upper end of the drill body 1 is formed with a connection The lower end of the head 11 is formed with a gage portion 12, and an inner tapered hole 121 is formed inside the bott...
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