DOWNHOLE DRILLING TOOLS INCLUDING LOW FRICTION GAGE PADS WITH ROTATABLE BALLS POSITIONED THEREIN

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专利权人:

HALLIBURTON ENERGY SERVICES, INC.

发明人:

CHEN, SHILIN

申请号：

CA20132929882

公开号：

CA2929882(C)

申请日:

2013.12.13

申请国别(地区):

加拿大

年份:

2017

代理人:

摘要：

In accordance with some embodiments of the present disclosure, a downhole drilling tool comprises a bit body, a blade on an exterior portion of the bit body, and a gage pad on the blade. The gage pad includes a ball retainer and a ball located in the ball retainer such that an exposed portion of the ball is positioned to contact a wellbore and rotate in response to frictional engagement with the wellbore.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/