Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe
First Claim
1. A bi-directional acoustic telemetry system for communicating data and/or control signals between a first modem and a second modem along tubing, the system comprising:
- a bi-directional communication channel comprising;
the tubing,a transducer of the first modem, anda transducer of the second modem,wherein the transducer of each modem is configured to transmit and receive said data and/or control signals, andwherein the transducer of each modem is further configured to electrically communicate with a power amplifier characterized by an output impedance Zs and a signal conditioning amplifier characterized by an input impedance Zr; and
wherein the power amplifier and the signal conditioning amplifier are configured so that the output impedance Zs matches the input impedance Zr to achieve a matched spectral response in communications in both directions of the communication channel along the tubing between the first modem and the second modem.
1 Assignment
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Accused Products
Abstract
A bi-directional acoustic telemetry system is presented for communicating data and/or control signals between a first modem and a second modem along tubing. The system includes a communication channel defined by the tubing, a transducer of the first modem, and a transducer of the second modem. The transducer of each modem are configured to transmit and receive data and/or control signals, and are further configured to electrically communicate with a power amplifier characterized by an output impedance Zs and a signal conditioning amplifier characterized by an input impedance Zr. The system also includes a reciprocal response along the communication channel between the output impedance Zs and the input impedance Zr.
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Citations
19 Claims
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1. A bi-directional acoustic telemetry system for communicating data and/or control signals between a first modem and a second modem along tubing, the system comprising:
a bi-directional communication channel comprising; the tubing, a transducer of the first modem, and a transducer of the second modem, wherein the transducer of each modem is configured to transmit and receive said data and/or control signals, and wherein the transducer of each modem is further configured to electrically communicate with a power amplifier characterized by an output impedance Zs and a signal conditioning amplifier characterized by an input impedance Zr; and wherein the power amplifier and the signal conditioning amplifier are configured so that the output impedance Zs matches the input impedance Zr to achieve a matched spectral response in communications in both directions of the communication channel along the tubing between the first modem and the second modem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A testing installation for a well comprising:
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a well-head equipment, a tubing which extends from the well-head equipment down inside the well to the zone of interest and downhole equipment connected to the tubing, and a bi-directional acoustic telemetry system for communicating between downhole equipment and the well-head equipment, the bi-directional acoustic telemetry system comprising; a first modem having a transducer; and a second modem having a transducer, wherein the transducer of each modem is configured to transmit and receive data and/or control signals along the tubing, wherein the transducer of each modem is further configured to electrically communicate with a power amplifier characterized by an output impedance Zs and a signal conditioning amplifier characterized by an input impedance Zr; and wherein the power amplifier and the signal conditioning amplifier are configured so that the output impedance Zs matches the input impedance Zr to achieve a matched spectral response in communications between the first modem and the second modem in both directions of a bi-directional communications channel along the tubing.
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17. A method for bi-directional acoustic communication between a first modem and a second modem along tubing, wherein each said modem comprises a transducer for transmitting and receiving acoustic signals, the method comprising the steps of:
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determining an output impedance Zs of each modem; determining an input impedance Zr of each modem; matching the determined output impedance Zs of each modem with the determined input impedance of each modem; transmitting an acoustic signal from the first modem to the second modem along the tubing, where the output impedance Zs of the first modem has been matched with the input impedance Zr of the second modem; and transmitting an acoustic signal from the second modem to the first modem along the tubing, where the output impedance Zs of the second modem has been matched with the input impedance Zr of the first modem. - View Dependent Claims (18)
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19. A bi-directional acoustic telemetry system for communicating data and/or control signals between a first modem and a second modem along tubing, comprising:
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a first modem; and a second modem, wherein each said modem comprises a transducer for transmitting and receiving said data and control signals, and wherein the transducer of each said modem is configured to electrically communicate with; a power amplifier characterized by an output impedance Zs for driving said data and/or control signal, and a signal conditioning amplifier characterized by an input impedance Zr for receiving said data and/or control signal, wherein the power amplifier and the signal conditioning amplifier are configured so that the output impedance Zs and the input impedance Zr provide for a bi-directional communication channel along the tubing between the first and second modems having a reciprocal spectral response in both directions of communication between the first and second modems.
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Specification