发明名称 |
Drill Bits Having Blind-Hole Flushing And Systems For Using Same |
摘要 |
A drill bit for forming a hole in a formation. The drill bit has a shank and a full face crown that cooperate to define an interior space that receives water or other drilling fluid. The full face crown defines a plurality of bores that extend from a cutting face of the full face crown to the interior space. The full face crown completely circumferentially encloses the interior space of the drill bit. |
申请公布号 |
US2015136493(A1) |
申请公布日期 |
2015.05.21 |
申请号 |
US201314085218 |
申请日期 |
2013.11.20 |
申请人 |
Longyear TM, Inc. |
发明人 |
Pearce Cody A.;Rupp Michael D.;Lambert Christian M. |
分类号 |
E21B10/43;E21B3/00 |
主分类号 |
E21B10/43 |
代理机构 |
|
代理人 |
|
主权项 |
1. A full-face drill bit for forming a hole in a formation, the drill bit having a longitudinal axis and comprising:
a shank; an full face crown having a cutting face and an outer surface, the full face crown and the shank cooperating to define an interior space about the longitudinal axis, wherein the full face crown defines a plurality of bores extending from the cutting face to the interior space, and wherein the full face crown completely circumferentially encloses the interior space. |
地址 |
South Jordan UT US |