PDC drill bit capable of continuously and rapidly drilling
The invention relates to the technical field of oil and gas drilling and production, in particular to a PDC drill bit capable of continuously and quickly drilling, which comprises a drill bit body, and a first blade, a second blade, a third blade, a fourth blade and a fifth blade are fixedly connect...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of oil and gas drilling and production, in particular to a PDC drill bit capable of continuously and quickly drilling, which comprises a drill bit body, and a first blade, a second blade, a third blade, a fourth blade and a fifth blade are fixedly connected to the outer surface of the drill bit body. A plurality of plane teeth and a plurality of plough-shaped teeth are installed on the side edges of the first cutter wing, the second cutter wing, the third cutter wing, the fourth cutter wing and the fifth cutter wing, the surface of the drill bit body is connected with a nozzle through a screw thread, and a balling prevention ball is installed in the center of the drill bit body. By means of a special tooth distribution mode, the cutting teeth on the same blade are changed into surface contact from linear contact with a stratum, impact force borne by the cutting teeth is reduced, the cutting teeth are prevented from being damaged in advance, continuous aggressivenes |
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