发明申请
US20190078392A1 EARTH-BORING TOOLS INCLUDING ROTATABLE CUTTING ELEMENTS AND FORMATION-ENGAGING FEATURES THAT DRIVE ROTATION OF SUCH CUTTING ELEMENTS, AND RELATED METHODS
审中-公开
基本信息:
- 专利标题： EARTH-BORING TOOLS INCLUDING ROTATABLE CUTTING ELEMENTS AND FORMATION-ENGAGING FEATURES THAT DRIVE ROTATION OF SUCH CUTTING ELEMENTS, AND RELATED METHODS
- 申请号：US15704861 申请日：2017-09-14
- 公开(公告)号：US20190078392A1 公开(公告)日：2019-03-14
- 发明人： Alexander Rodney Boehm , Jon David Schroder , John Abhishek Raj Bomidi , William A. Moss, JR. , Kegan L. Lovelace
- 申请人： Baker Hughes, a GE company, LLC
- 主分类号： E21B10/573
- IPC分类号： E21B10/573 ; E21B10/55
摘要：
An earth-boring tool includes a body and cutting elements rotatably mounted on the body. The earth-boring tool also includes a formation-engaging feature attached to the body and exposed at a face of the body. The formation-engaging feature may be configured to rotate about an axis of rotation responsive to frictional forces acting between the formation-engaging feature and a formation when the body moves relative to the formation. The axis of rotation of the formation-engaging feature may be oriented at an angle to an axis of rotation of the cutting elements. The formation-engaging feature may be operably coupled to the cutting elements such that rotation of the formation-engaging feature causes rotation of the cutting elements. Methods include drilling a subterranean formation including engaging a formation with the cutting elements and the formation-engaging features.
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 |
| ------E21B10/00 | 钻头 |
| --------E21B10/46 | .以抗磨部件为特征的，例如，金刚石镶嵌 |
| ----------E21B10/50 | ..牙轮钻头 |
| ------------E21B10/567 | ...带有安装在不同的支架上的切削装置，例如多晶镶嵌 |
| --------------E21B10/573 | ....以支架零件为特征的，例如，底层结构或底层与切削部件之间的交界面 |