基本信息:
- 专利标题： 一种打捞钻头的方法及用于打捞钻头的装置
- 专利标题（英）：Method and device for salvaging drilling bit
- 申请号：CN201910233856.6 申请日：2019-03-26
- 公开(公告)号：CN109882107A 公开(公告)日：2019-06-14
- 发明人： 潘东发 , 张立超 , 刘传志 , 陈洪军 , 黄平熠 , 李国平 , 姚华 , 左少华 , 杨碧波 , 叶绍其 , 龚金才 , 吴汉湘 , 赵炜
- 申请人： 中铁大桥局集团有限公司
- 申请人地址： 湖北省武汉市汉阳区汉阳大道38号
- 专利权人： 中铁大桥局集团有限公司
- 当前专利权人： 中铁大桥局集团有限公司
- 当前专利权人地址： 湖北省武汉市汉阳区汉阳大道38号
- 代理机构： 武汉智权专利代理事务所
- 代理人： 陈锐
- 主分类号： E21B31/20
- IPC分类号： E21B31/20 ; E21B31/06 ; E21B17/02
The invention discloses a method and device for salvaging a drilling bit, and relates to the technical field of bored pile construction. When a drilling bit disengages, whether the disengaging drilling bit is in the vertical direction or not is judged through the condition that the bottom end of a drill pipe makes contact with the disengaging drilling bit; when the drilling bit is not in the vertical direction, and the disengaging drilling bit has a large inclination angle, the inclination angle and the coordinates of a central hole of the drilling bit are determined first, then a drilling bitsalvaging device is arranged on the lower part of the drill pipe of a drilling rig in an inclined mode, the drill pipe is drilled down by the drilling rig, the drilling bit salvaging device is directly inserted into the central hole of the drilling bit, and an inverted tooth structure of the drilling bit salvaging device is connected with an inner thread of the central hole of the drilling bit ina clamping mode, so that the drilling bit can be salvaged timely and quickly, and the difficult problem of salvaging of existing drilling bits is solved.
公开/授权文献:
- CN109882107B 一种打捞钻头的方法及用于打捞钻头的装置 公开/授权日：2023-05-30
IPC结构图谱:
| E | 固定建筑物 |
| --E21 | 土层或岩石的钻进；采矿 |
| ----E21B | 土层或岩石的钻进；从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
| ------E21B31/00 | 在井眼或井中打捞或排除物体 |
| --------E21B31/107 | .用冲击装置松脱被卡件，例如，振动器 |
| ----------E21B31/20 | ..从内部抓取，例如，打捞矛 |