Method and system for determining the position and...

Details Method and system for determining the position and... Method and system for determining the position and...

2005-01-18

2005-01-18

Dang, Hoang (Department: 3672)

Wells

Processes

With indicating, testing, measuring or locating

C166S055100, C166S066500, C166S297000, C175S004510

Reexamination Certificate

active

06843318

ABSTRACT:
A method and system for activating a device at a particular orientation in a casing are disclosed. The casing has a bias, for example a lower side due to tilt, that defines a default angle in the casing, for example a point along a wall of the casing where objects will rest due to gravity. The method includes providing a magnetic sensor at a known angle in the device relative to the angle at which a device function occurs. For example, the angle at which a perforating gun perforates the casing is a device function angle. The method further includes lowering the device into the casing. The method further includes determining the offset of the device from the casing at the known angular position from an output of the magnet sensor. The device can then be activated.

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