Acoustic telemetry with distributed acoustic sensing system
First Claim
1. A system for use with a subterranean well, the system comprising:
- multiple well tools installed at longitudinally spaced apart locations along the well, each of the multiple well tools are encompassed in a side-pocket mandrel disposed in the well, each of the multiple well tools including a sensor to measure one or more downhole parameters and an acoustic transmitter which wirelessly transmits an acoustic signal including information representative of a measurement of the one or more downhole parameters by the sensor, and wherein the multiple well tools are configured to change a data source, a data rate, a modulation technique, or a transmitting frequency on command from a surface controller;
an optical waveguide positioned in the well, wherein the optical waveguide is present at each of the locations, the optical waveguide sensing the respective acoustic signal from the respective acoustic transmitter at the respective location for each of the multiple well tools; and
an optical interrogator positioned at a surface of the earth and connected to the optical waveguide, the optical interrogator thereby receiving the respective information representative of the respective measurement by the respective sensor for each of the multiple well tools.
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Accused Products
Abstract
An acoustic telemetry method for use with a subterranean well can include positioning a well tool in the well, the well tool including an acoustic transmitter and a sensor, and an acoustic receiver in the well receiving an acoustic signal transmitted by the transmitter, the acoustic signal including information representative of a measurement by the sensor. A system for use with a subterranean well can include a well tool positioned in the well, the well tool including an acoustic transmitter and a sensor, the acoustic transmitter transmits an acoustic signal including information representative of a measurement by the sensor to an acoustic receiver positioned in the well.
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Citations
23 Claims
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1. A system for use with a subterranean well, the system comprising:
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multiple well tools installed at longitudinally spaced apart locations along the well, each of the multiple well tools are encompassed in a side-pocket mandrel disposed in the well, each of the multiple well tools including a sensor to measure one or more downhole parameters and an acoustic transmitter which wirelessly transmits an acoustic signal including information representative of a measurement of the one or more downhole parameters by the sensor, and wherein the multiple well tools are configured to change a data source, a data rate, a modulation technique, or a transmitting frequency on command from a surface controller; an optical waveguide positioned in the well, wherein the optical waveguide is present at each of the locations, the optical waveguide sensing the respective acoustic signal from the respective acoustic transmitter at the respective location for each of the multiple well tools; and an optical interrogator positioned at a surface of the earth and connected to the optical waveguide, the optical interrogator thereby receiving the respective information representative of the respective measurement by the respective sensor for each of the multiple well tools. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An acoustic telemetry method for use with a subterranean well, the method comprising:
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installing multiple well tools installed at longitudinally spaced apart locations along the well, each of the multiple well tools are encompassed in a side-pocket mandrel disposed in the well, each of the multiple well tools including a sensor to measure downhole parameters and an acoustic transmitter; transmitting an acoustic signal from each of the multiple well tools via the respective acoustic transmitter, the respective acoustic signal including information representative of a measurement by the respective sensor, and wherein the multiple well tools are configured to change a data source, a data rate, a modulation technique, or a transmitting frequency on command from a surface controller; positioning an optical waveguide in the well laterally adjacent each of the location, the optical waveguide sensing the respective acoustic signal from the respective acoustic transmitter at the respective location for each of the multiple well tools; and connecting the optical interrogator to the optical waveguide, the optical interrogator thereby receiving the respective information representative of the respective measurement of downhole parameters by the respective sensor for each of the multiple well tools. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification