发明授权
- 专利标题： Measurement of downhole component stress and surface conditions
- 专利标题（中）： 井下部件应力和表面条件的测量
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申请号： US13401158申请日： 2012-02-21
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公开(公告)号： US09057247B2公开(公告)日： 2015-06-16
- 发明人: Sunil Kumar , Hendrik John , Harald Grimmer , Thomas Kruspe , Andreas Peter , Michael Koppe
- 申请人： Sunil Kumar , Hendrik John , Harald Grimmer , Thomas Kruspe , Andreas Peter , Michael Koppe
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Cantor Colburn LLP
- 主分类号： E21B44/00
- IPC分类号： E21B44/00 ; E21B47/00 ; E21B47/01
摘要：
An apparatus for measuring strain on a downhole component includes: at least one strain sensitive device disposed proximate to a surface of a component of a drilling assembly or disposed within a material forming the component; and a processor in operable communication with the at least one strain sensitive device, the processor configured to detect changes in the at least one strain sensitive device and detect at least one of erosion, crack formation and crack propagation in the component surface. An apparatus for measuring strain on a downhole component includes: at least one strain gauge deposited on a surface of a drive shaft or disposed within a material forming the drive shaft; and a processor in operable communication with the at least one strain gauge, the processor configured to detect changes in the at least one strain gauge and detect conditions affecting operation of the drive shaft.