Downhole sensor flap and method of using same
AssigneeSchlumberger Technology Corporation
InventorTatsuki Endo
Life of this patent
Estimating the term…
Abstract
A sensor flap for a downhole tool. The downhole tool is positionable in a wellbore penetrating a subterranean formation. The sensor flap includes a sensor housing and at least one sensor. The sensor housing is operatively connectable to the downhole tool. The sensor housing is movably positionable between a retracted position in the downhole tool and an extended position in contact with a wall of the wellbore. The sensor is positionable in the sensor housing, and may include a seismic detector to measure seismic activity when the sensor housing is in contact with the wall of the wellbore.
Claims18
A sensor flap for a downhole tool positionable in a wellbore penetrating a subterranean formation, the sensor flap comprising:
- a sensor housing operatively connectable to the downhole tool via a pivotable member, the sensor housing rotatable between a first position in which a sensor portion of the sensor housing is located within the downhole tool and a second position in which the sensor portion is configured to contact with a wall of the wellbore;
- and
- at least one sensor positionable in the sensor portion of the sensor housing, the at least one sensor comprising a seismic detector to measure seismic activity when the sensor housing is in the second position.
A downhole tool positionable in a wellbore penetrating a subterranean formation, the downhole tool comprising:
- a tool housing comprising a wall with an outer surface;
- and
- a sensor flap positionable in the tool housing, the sensor flap comprising:
- a sensor housing operatively connectable to the wall of the tool housing via a pivotable member, the sensor housing rotatable between a first position in which a sensor portion of the sensor housing is located within the downhole tool and a second position in which the sensor portion is configured to contact with a wall of the wellbore;
- and
- at least one sensor positionable in the sensor portion of the sensor housing, the at least one sensor comprising a seismic detector to measure seismic activity when the sensor housing is in the second position.
A method of sensing downhole properties in a wellbore penetrating a subterranean formation, the method comprising:
- deploying a downhole tool into the wellbore, the downhole tool comprising a tool housing comprising a wall with an outer surface and a sensor flap positionable in the tool housing, the sensor flap comprising a sensor housing operatively connectable to the tool housing via a pivotable member and at least one sensor positionable in a sensor portion of the sensor housing, the at least one sensor comprising a seismic detector;
- selectively rotating the sensor housing between a first position in which the sensor portion is located within the tool housing and a second position in which the sensor portion is configured to contact with a wall of the wellbore;
- and
- sensing seismic properties with the seismic detector when the sensor portion of the sensor housing is in contact with the wall of the wellbore.
Dependencies are inferred from the claim text.