Drill bit equipment for deep water drilling and drilling method
A technology for deep water drilling and drill bits, which is applied to drilling equipment and methods, drilling equipment, underwater drilling, etc., and can solve the problem of the reduction of the mechanical speed of the roller cone bit, the reduction of the mechanical speed of the drill bit, and the limitation of the service life of the roller cone bit bearing. problems, avoiding the risk of damage and failure, increasing the drilling depth of the second opening, and overcoming the limitation of bearing life
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[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describin...
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