基本信息:
- 专利标题: CUTTING ELEMENT SUPPORT SHOE FOR DRILL BIT
- 专利标题(中):切割元件支持钻头
- 申请号:PCT/US2013/070683 申请日:2013-11-19
- 公开(公告)号:WO2015076778A1 公开(公告)日:2015-05-28
- 发明人: OLSEN, Garrett T.
- 申请人: HALLIBURTON ENERGY SERVICES INC.
- 申请人地址: 10200 Bellaire Blvd. Houston, Texas 77072 US
- 专利权人: HALLIBURTON ENERGY SERVICES INC.
- 当前专利权人: HALLIBURTON ENERGY SERVICES INC.
- 当前专利权人地址: 10200 Bellaire Blvd. Houston, Texas 77072 US
- 代理机构: COOKE, Brett T. et al.
- 主分类号: E21B10/573
- IPC分类号: E21B10/573 ; E21B10/43
摘要:
A drill bit in which a cutting element support shoe is mounted to a drill bit member so that it covers a portion of a number cutting elements while leaving the cutting edges of cutting elements exposed to the formation. The drill bit member may include a bit body, blade, arm, or roller, for example. The drill bit member may include a recess into which the cutting element support shoe is received. Cutting element support shoe provides mechanical holding of the cutting elements within their pockets in addition to conventional brazing or other mounting techniques. Once installed, a hard facing material may be applied over the cutting element support shoe as appropriate for increased erosion resistance. In one embodiment, the cutting element support shoe is sized so that when mounted to the drill bit member it is elastically deformed, thereby providing additional cutter retaining force upon attachment.
摘要(中):
一种钻头,其中切割元件支撑鞋被安装到钻头构件,使得其覆盖数个切割元件的一部分,同时使切割元件的切割边缘暴露于地层。 钻头构件可以包括例如钻头体,刀片,臂或辊。 钻头构件可以包括凹部,切割元件支撑鞋被容纳在凹部中。 除了常规的钎焊或其他安装技术之外,切割元件支撑靴还提供切割元件在其凹穴内的机械保持。 一旦安装,可以适当地将硬质材料施加在切割元件支撑鞋上以增加耐侵蚀性。 在一个实施例中,切割元件支撑鞋的尺寸设计成使得当安装到钻头构件时,其被弹性变形,从而在附接时提供附加的刀具保持力。
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 |