Drill bit for particle percussion drilling

A particle impact and drill bit technology, used in drill bits, drilling equipment, earth-moving drilling, etc., can solve the problems of poor drillability, inability to form efficient rock breaking, compaction and other problems, reduce drilling rig operation time, and achieve fast and efficient drilling operations. , The effect of increasing the ROP

Inactive Publication Date: 2013-03-06
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

And all these drill bits need enough drilling pressure and torque to overcome the damage limit of rock in the process of breaking rock. Due to the limitation of drill pipe and related downhole tools, the stress of the cutting elements of the drill bit on the rock is small, which is suitable for deep burial and long age. , heavy compaction, high strength, poor drillability, and strong abrasive formation cannot form efficient rock breaking

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  • Drill bit for particle percussion drilling
  • Drill bit for particle percussion drilling

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] Refer to attached figure 1 with 2 , A drill bit for particle impact drilling, including a drill joint 1, a drill body 2, and a cutting head 3. The drill joint 1 has threads 4 and clamps 5, and the drill body 2 is inlaid with gauge teeth 6 and side cutters 7. The middle of the lower part of the cutting head 3 is a conical protrusion, and the outer edge of the lower part of the cutting head 3 is two sections of annular flanks symmetrical to the center; After the fan-shaped groove, cutting teeth 10 are inlaid on the two-section annular flanks on the lower outer edge of the cutting head 3; the nozzle 8 runs through the tapered protrusion in the middle of the lower part of the cutting head 3 and the two annular flanks on the lower outer edge of the cutting head 3. The outer diameter of the drill body 2 at the place where the gage teeth are ...

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Abstract

The invention relates to a drill bit for particle percussion drilling in the field of drill bits for drilling. The drill bit for particle percussion drilling comprises a drill bit joint, a drill bit body and a cutting head, wherein a thread and a striking clamp are arranged on the drill bit joint, and the drill bit body is inlaid with gauge protection teeth and lateral incision teeth. The middle of the lower part of the cutting head is a conical and convex, and the outer edge of the lower part of the cutting head is provided with two sections of centrosymmetric annular lateral wings; the conical bulge at the middle of the lower part of the cutting head is provided with percussion teeth in an inlaying manner, and the two sections of annular lateral wings on the outer edge of the lower part of the cutting head are provided with cutting teeth in an inlaying manner; and nozzles are installed on the conical bulge at the middle of the lower part of the cutting head and the two sections of annular lateral wings on the outer edge of the lower part of the cutting head respectively. The drill bit for particle percussion drilling is suitable for the field of particle drilling, and capable of rapidly drilling in extra-hard stratums and soft-hard interacted stratums which are hard to drill by conventional drill bits, so that the drilling operation is more rapid and efficient.

Description

technical field [0001] The invention relates to a drill bit for particle impact drilling used for particle drilling in the field of drilling bits. Background technique [0002] At present, conventional drilling rock-breaking tools are mainly drill bits. Different cutting methods of various drill bits determine different adaptability, such as: PDC bit cuts and breaks rock by PDC teeth; hard formation roller cone bit impacts rock by cone teeth; Natural diamond is scraped or ground by high-hardness diamond to break rock. The main components of all these drill bits are the drill bit, the drill body and the cutting head. There are threads and clamps on the drill bit, and the drill body is inlaid with gauge teeth and side cutters. And all these drill bits need enough drilling pressure and torque to overcome the damage limit of rock in the process of breaking rock. Due to the limitation of drill pipe and related downhole tools, the stress of the cutting elements of the drill b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/36E21B10/38
Inventor 朱杰然温林荣兰婧任红刘峰张佳佳
Owner CHINA PETROLEUM & CHEM CORP
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