Well tool actuator and isolation valve for use in drilling operations
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United States of America Patent
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Jun 24, 2014
Grant Date -
Jan 3, 2013
app pub date -
Jun 7, 2012
filing date -
Jul 1, 2011
priority date (Note) -
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Abstract
A well tool actuator can include a series of chambers which, when opened in succession, cause the well tool to be alternately actuated. A method of operating a well tool actuator can include manipulating an object in a wellbore; a sensor of the actuator detecting the object manipulation; and the actuator actuating in response to the sensor detecting the object manipulation. A drilling isolation valve can comprise an actuator including a series of chambers which, when opened in succession, cause the isolation valve to be alternately opened and closed. A method of operating a drilling isolation valve can include manipulating an object in a wellbore, a sensor of the drilling isolation valve detecting the object manipulation, and the drilling isolation valve operating between open and closed configurations in response to the sensor detecting the object manipulation.
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