发明授权
- 专利标题： Downhole tool string component that is protected from drilling stresses
- 专利标题（中）： 防止钻孔应力的井下工具组件
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申请号： US12616200申请日： 2009-11-11
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公开(公告)号： US08201645B2公开(公告)日： 2012-06-19
- 发明人: David R. Hall , Nathan Nelson , Scott Woolston , Scott Dahlgren , Jonathan Marshall
- 申请人： David R. Hall , Nathan Nelson , Scott Woolston , Scott Dahlgren , Jonathan Marshall
- 申请人地址： US TX Houston
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US TX Houston
- 代理机构： Brinks Hofer Gilson & Lione
- 主分类号： E21B17/10
- IPC分类号： E21B17/10
摘要：
In one aspect of the present invention, a downhole tool string component has a first and second threaded end on a mandrel, the first threaded end attached to a first sleeve and the second threaded end attached to a second sleeve. An intermediate sleeve assembly is disposed circumferentially around the mandrel and intermediate the first and second threaded ends, and the intermediate sleeve assembly is primarily isolated from stress of the first or second sleeve.
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