Measurement and control releasing device, drilling tool and related method and system
The invention discloses a measurement and control releasing device, a drilling tool and a related method and system.The measurement and control releasing device is used for connecting a well drilling rod and a drilling tool, and the upper end of a driving assembly of the releasing device is connecte...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a measurement and control releasing device, a drilling tool and a related method and system.The measurement and control releasing device is used for connecting a well drilling rod and a drilling tool, and the upper end of a driving assembly of the releasing device is connected with a first cable; the locking outer sleeve is connected with the driving assembly, the locking inner sleeve is arranged in a cavity of the locking outer sleeve, the release rod is arranged in a cavity of the locking inner sleeve, and the locking outer sleeve and the locking inner sleeve form a moving channel of the locking ball; the release rod is arranged at the lower end of the driving lead screw, so that the control joint controls the driving lead screw to move downwards to drive the release rod to move, the locking outer sleeve and the locking inner sleeve are separated through movement of the locking ball, and therefore the well drilling rod is driven to be separated from the drilling tool. Compared with a |
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