ACTIVATION MODULES FOR OBSTRUCTING ENTRANCES TO INNER BARRELS OF CORING TOOLS AND RELATED CORING TOOLS AND METHODS |
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| 申请号 | EP15836923 | 申请日 | 2015-08-26 | 公开(公告)号 | EP3186467A4 | 公开(公告)日 | 2018-05-30 |
| 申请人 | BAKER HUGHES INC; | 发明人 | WESEMEIER CHRISTOPH; UHLENBERG THOMAS; | ||||
| 摘要 | Activation modules for selectively sealing entrances to inner barrels of coring tools may include an activator body and an activation rod movable between a first position and a second position. A locking element may temporarily hold the activator body in place and a sealing element may form a temporary seal. The activation rod may include a locking portion, a releasing portion of a smaller diameter, a sealing portion, and an unsealing portion of a smaller diameter. The locking portion may be aligned with the locking element and the sealing portion may be aligned with the sealing element when the activation rod is in the first position, The releasing portion may be aligned with the locking element and the unsealing portion may be aligned with the sealing element when the activation rod is in the second position. | ||||||
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| 说明书全文 | |||||||
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