Abstract: A bi-directional telemetry system for use in a wellbore environment is provided. The bi-directional telemetry system includes a first acoustic telemetry component and a second acoustic telemetry component that is separate from the first acoustic telemetry component. The first acoustic telemetry component comprises a downhole acoustic transmitter disposed in a wellbore and operable to transmit the first acoustic signal and an uphole acoustic receiver. The second acoustic telemetry component comprises an uphole acoustic transmitter operable to transmit the second acoustic signal and a downhole acoustic receiver.

Abstract: An acoustic receiver is provided. The acoustic receiver includes an optical vibrometer having an optical emitter and an optical receiver. The optical receiver is operable to emit an optical beam to a single point of reference on a conduit, and the optical receiver is operable to receive one or more reflections of the optical beam off of the single point of reference on the conduit, thereby detecting waves propagating through the conduit created by an acoustic transmitter. A processor is coupled with the optical emitter and the optical receiver. The processor is operable to: determine components of the waves created by the acoustic transmitter based on the one or more reflections of the optical beam; and determine a signal transmitted from the acoustic transmitter based on the components of the waves.

Abstract: An acoustic receiver is provided. The acoustic receiver includes an optical vibrometer having an optical emitter and an optical receiver. The optical receiver is operable to emit an optical beam to a single point of reference on a conduit, and the optical receiver is operable to receive one or more reflections of the optical beam off of the single point of reference on the conduit, thereby detecting waves propagating through the conduit created by an acoustic transmitter. A processor is coupled with the optical emitter and the optical receiver. The processor is operable to: determine components of the waves created by the acoustic transmitter based on the one or more reflections of the optical beam; and determine a signal transmitted from the acoustic transmitter based on the components of the waves.