发明授权
- 专利标题： Speed control devices and methods for drop down tools
- 专利标题（中）： 速度控制装置和下拉工具的方法
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申请号： US13593089申请日： 2012-08-23
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公开(公告)号： US09033038B2公开(公告)日： 2015-05-19
- 发明人: Avigdor Hetz , Doron Hetz , John G. Evans
- 申请人： Avigdor Hetz , Doron Hetz , John G. Evans
- 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： Mossman, Kumar & Tyler, PC
- 主分类号： E21B47/09
- IPC分类号： E21B47/09 ; E21B47/16
摘要：
An apparatus for evaluating an earth formation intersected by a wellbore may include a logging tool conveyed into the wellbore through a drilling tubular, a speed control device associated with the logging tool, and a sensor operatively associated with the logging tool. In use, the speed control device varies an annular flow space between the speed control device and a surface adjacent to control speed. The flow space may be varied using a annular member that flexes between a nominal diameter and a second larger diameter.
公开/授权文献
- US20140054030A1 SPEED CONTROL DEVICES AND METHODS FOR DROP DOWN TOOLS 公开/授权日：2014-02-27
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