Systems and methods for real time oil tool orientation detection

A method for determining a position or motion of a charge tube in a perforating gun system for tubing conveyed perforating (TCP), the method comprising:

• rotating a gun carrier of the perforating gun system, the gun carrier comprising at least one free rotation device and a plurality of sensors on an interior surface of the gun carrier;
• detecting, via the plurality of sensors, the position of a stationary emitter on the charge tube suspended on the at least one free rotation device;
• and
• transmitting, via an acoustic transmitter in communication with the sensor, an acoustic signal to an acoustic receiver when the stationary emitter passes each sensor of the plurality of sensors;
• and
• firing, via the acoustic transmitter, the charge tube,
• wherein each sensor of the plurality of sensors comprises a unique identifier, and
• wherein the acoustic signal comprises a plurality of unique acoustic signals based on the unique identifier for each sensor of the plurality of sensors.

A perforating gun system for tubing conveyed perforating (TCP), the perforating gun system comprising:

• a first perforating gun assembly, the first perforating gun assembly comprising:
• a first gun carrier having an interior surface and operable to be rotated;
• at least one free rotation device operable to contact the interior surface of the first gun carrier;
• a first charge tube suspended on the at least one free rotation device of the first gun carrier, so that the first charge tube can rotate with respect to the first gun carrier;
• a first stationary emitter coupled to the first charge tube;
• and
• a plurality of first gun carrier sensors coupled to the interior surface of the first gun carrier, the plurality of first gun carrier sensors configured to intermittently align with the first stationary emitter when the first charge tube is orienting independently of a rotation of the first gun carrier;
• a second perforating gun assembly coupled to a proximal end of the first perforating gun assembly, the second perforating gun assembly comprising:
• a second gun carrier having an interior surface and operable to be rotated;
• at least one free rotation device operable to contact the interior surface of the second gun carrier;
• a second charge tube suspended on the at least one free rotation device of the second gun carrier, so that the second charge tube can rotate with respect to the second gun carrier;
• a second stationary emitter coupled to the second charge tube;
• and
• a plurality of second gun carrier sensors coupled to the interior surface of the second gun carrier, the plurality of second gun carrier sensors configured to intermittently align with the second stationary emitter when the second charge tube is orienting independently of a rotation of the second gun carrier;
• and
• an acoustic transmitter in communication with the plurality of first gun carrier sensors and/or the plurality of second gun carrier sensors, the acoustic transmitter configured to output a unique acoustic signal for each sensor of the plurality of first gun carrier sensors and/or the plurality of second gun carrier sensors to an acoustic receiver, and
• wherein the acoustic transmitter is a firing head operable to fire at least one of the first or second charge tubes.