| CPC E21B 43/11857 (2013.01) [E21B 43/2607 (2020.05); E21B 47/0224 (2020.05); E21B 47/0232 (2020.05); E21B 47/095 (2020.05); E21B 47/135 (2020.05)] | 20 Claims |
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9. A method comprising:
positioning a plurality of sensor devices in proximity to a fiber optic cable positionable downhole along a length of a wellbore at a plurality of depths in the wellbore for transmitting a plurality of acoustic signals to the fiber optic cable, each sensor device in the plurality of sensor devices being configured to transmit a respective acoustic signal indicating a respective depth and orientation of a respective segment of the fiber optic cable that is associated with the sensor device;
receiving, by a processor, data describing properties of the plurality of acoustic signals detected by the fiber optic cable, wherein, for a sensor device of the plurality of sensor devices, the respective acoustic signal further indicates an angular rotation of the sensor device between a reference depth and a final landing depth of the sensor device;
based on the properties of the plurality of acoustic signals, building, by the processor, a model describing how the fiber optic cable is positioned around a casing string in the wellbore;
determining, by the processor using the model, a target orientation for a perforating gun that avoids damaging the fiber optic cable during a perforation operation at a target depth in the wellbore; and
automatically controlling, by the processor, the perforating gun to be positioned at the target orientation for enabling the perforation operation to be performed at the target depth without damaging the fiber optic cable.
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