| 发明名称 |
AUTOMATED DECK BUSHING SYSTEM |
| 摘要 |
A drilling system including a drill bit. A deck bushing includes an outer housing and an inner sleeve rotatably arranged in the outer housing, the inner sleeve having an inner diameter wider than a width of the drill bit. A drop-in sleeve is configured to be inserted into the inner sleeve of the deck bushing. At least a portion of the drop-in sleeve engages the inner sleeve of the deck bushing such that a friction between the drop-in sleeve and inner sleeve of the deck bushing causes the drop-in sleeve and inner sleeve of the deck bushing to rotate together. A lifting sub configured to be inserted into the drop-in sleeve. |
| 申请公布号 |
US2015315859(A1) |
申请公布日期 |
2015.11.05 |
| 申请号 |
US201414265850 |
申请日期 |
2014.04.30 |
| 申请人 |
ATLAS COPCO CANADA INC. |
发明人 |
Strydom George |
| 分类号 |
E21B19/18;E21B17/10;E21B19/06;E21B10/00 |
主分类号 |
E21B19/18 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A drilling system, comprising:
a drill bit; a deck bushing comprising an outer housing and an inner sleeve rotatably arranged in the outer housing, the inner sleeve having an inner diameter wider than a width of the drill bit; a drop-in sleeve configured to be inserted into the inner sleeve of the deck bushing, wherein at least a portion of the drop-in sleeve engages the inner sleeve of the deck bushing such that a friction between the drop-in sleeve and inner sleeve of the deck bushing causes the drop-in sleeve and inner sleeve of the deck bushing to rotate together; and a lifting sub configured to be inserted into the drop-in sleeve. |
| 地址 |
Dollard-des-Ormeaux CA |
