A PDC bit with a ring set of teeth

By adopting a combination of ring-shaped tooth distribution structure and radial cutter wings in the PDC drill bit, the cutting tooth distribution is optimized, solving the problem of cutting tooth wear failure in complex geological conditions, and achieving more efficient rock breaking and longer service life.

CN122407083APending Publication Date: 2026-07-17SOUTHWEST PETROLEUM UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Filing Date
2026-05-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing PDC drill bits are prone to cutting tooth wear failure under complex geological conditions, making it difficult to effectively control the depth of the drill bit in the formation, resulting in broken drill blades and low drilling efficiency.

Method used

The drill bit adopts a ring-shaped tooth arrangement structure. By setting multiple annular cutting teeth in the drill bit and combining them with radial cutter wings, a ring-shaped cutting structure is formed, which optimizes the arrangement and distribution of cutting teeth to improve the overall strength and cutting efficiency of the drill bit.

Benefits of technology

It improves the drill bit's rock-breaking ability under complex geological conditions, reduces cutting tooth wear, extends drill bit service life, and improves drilling efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及PDC钻头结构技术领域,具体涉及一种环组布齿PDC钻头,包括钻头体,所述钻头体端面上设置有若干第一切削齿,所述第一切削齿布置在至少两个彼此分隔开的环形区域或环段区域,形成由环形间隔带或环段间隔带分隔开的至少两个环组切削结构。通过对钻头上布齿结构进行调整,利用环组布齿组成环组切削结构,沿圆周向进行延伸并形成圆周向的切削区域,从而在钻头钻进的过程中提升对高强度、高硬度岩层等复杂环境下的切削效果,可以更加高效便捷地破坏岩层表面,钻头更加容易实现钻进的目的,同时还能减少PDC齿在切削过程中的损耗,有效提升钻头的使用寿命。
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