Multiple channel rapid cooling pdc bit
CN224693342UActive Publication Date: 2026-08-28CHINA PETROLEUM & CHEMICAL CORP +2
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Patent Information
- Application Number
- CN202522089605.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-28
AI Technical Summary
Technical Problem
[0003]在深层钻井复杂工况中，PDC钻头仍面临着诸多挑战：随着PDC钻头不断钻进，后排切削齿在破岩过程中散热条件较差，易被前排岩屑堆积覆盖，导致切削区域热量持续积聚；当PDC钻头穿越高研磨性地层时，剧烈的摩擦生热进一步推升后排切削齿的温度，使其热磨损风险显著增加，常出现切削齿崩裂、碳化等损坏现象，严重缩短PDC钻头使用寿命并影响钻进效率；泥页岩等地层破碎产生的岩屑遇水膨胀粘附，易在后排切削齿区域形成堆积，阻碍散热加剧温度升高，因泥包导致切削齿与地层接触效率下降，进一步引发PDC钻头破岩能力弱化与机械钻速降低等系列问题
Benefits of technology
[0016]本实用新型提供的多重流道速冷PDC钻头在使用过程中可通过冷却槽增强刀翼组件的后排齿的冷却环境，缓解切削齿磨损。本实用新型的冷却槽能够避免刀翼组件的本体与地层接触导致热量快速聚集加速多重流道速冷PDC钻头磨损至环槽状态。多重流道速冷PDC钻头的冷却槽能够提供更大的钻井液流通空间，缓解磨损，延长多重流道速冷PDC钻头寿命。
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Figure CN224693342U_ABST
Abstract
The utility model belongs to the technical field of drilling tool, specifically relates to a multiple runner rapid cooling PDC drill bit. Multiple runner rapid cooling PDC drill bit includes main part and the multiple blade wing subassembly of interval type setting on the main part along the circumference, the blade wing subassembly includes interval type and side by side arrangement main blade wing and vice blade wing, is provided with cooling groove between main blade wing and vice blade wing.
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