一种多孔道摩擦自开式切削疏堵防卡钻杆及使用方法
By designing a multi-channel friction self-opening cutting and anti-jamming drill rod, the reset component cuts and discharges drill cuttings when the drill rod rotates, solving the problem of drill jamming caused by drill cuttings accumulation during drilling construction and enabling smooth drilling construction.
CN117432346BActive Publication Date: 2026-07-17CHINA ACAD OF SAFETY SCI & TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA ACAD OF SAFETY SCI & TECH
- Filing Date
- 2023-11-21
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing drilling operations, drill cuttings accumulation leads to problems such as stuck drill pipes and drill bit jamming. Current technologies are unable to effectively clear the accumulated drill cuttings, resulting in drill pipe jamming or breakage.
Method used
A multi-channel friction self-opening cutting and anti-jamming drill rod is designed. The resetting component automatically cuts the blocked section when the drill rod rotates, and the drill cuttings are discharged through the internal slag discharge channel to clear the borehole.
Benefits of technology
It effectively prevents borehole blockage, improves drilling efficiency, ensures smooth drilling completion, and avoids drill rod jamming or breakage.
✦ Generated by Eureka AI based on patent content.
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Figure CN117432346B_ABST
Abstract
本发明公开了一种多孔道摩擦自开式切削疏堵防卡钻杆及使用方法，包括钻杆内芯和钻杆钢套，钻杆内芯的一端设有钻杆母头，钻杆内芯的另一端设有钻杆公头，钻杆内芯的中部设有压风通道，钻杆内芯的外侧壁上设有内排渣通道；钻杆钢套上设有切削口，钻杆钢套通过复位组件与钻杆内芯活动连接，复位组件包括定位槽、定位杆和复位弹簧，复位弹簧位于自由状态时，切削口与内排渣通道相错设置，复位弹簧位于压缩状态且定位杆与定位槽的行程限位部抵接时，切削口与内排渣通道相连通。本发明采用上述结构的多孔道摩擦自开式切削疏堵防卡钻杆，利用自身结构在旋转过程中对钻屑堵塞段进行径向切削扩孔，达到疏堵防卡钻的目的。
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