CALIBRATION OF A WELL ACOUSTIC SENSING SYSTEM
First Claim
1. A method of calibrating a distributed acoustic sensing system, the method comprising:
- receiving predetermined acoustic signals along multiple acoustic sensors distributed proximate a well; and
calibrating the distributed acoustic sensing system based on the received predetermined acoustic signals.
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Accused Products
Abstract
A method of calibrating a distributed acoustic sensing system can include receiving predetermined acoustic signals along acoustic sensors distributed proximate a well, and calibrating the system based on the received acoustic signals. A method of calibrating an optical distributed acoustic sensing system can include displacing an acoustic source along an optical waveguide positioned proximate a well, transmitting predetermined acoustic signals from the acoustic source, receiving the acoustic signals with the waveguide, and calibrating the system based on the received acoustic signals. A well system can include a distributed acoustic sensing system including an optical waveguide installed in a well, and a backscattered light detection and analysis device, and at least one acoustic source which transmits predetermined acoustic signals at spaced apart locations along the waveguide. The device compensates an output of the system based on the acoustic signals as received at the locations along the waveguide.
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Citations
75 Claims
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1. A method of calibrating a distributed acoustic sensing system, the method comprising:
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receiving predetermined acoustic signals along multiple acoustic sensors distributed proximate a well; and calibrating the distributed acoustic sensing system based on the received predetermined acoustic signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of calibrating an optical distributed acoustic sensing system, the method comprising:
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receiving predetermined acoustic signals along an optical waveguide positioned proximate a well; and calibrating the optical distributed acoustic sensing system based on the received predetermined acoustic signals. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of calibrating an optical distributed acoustic sensing system, the method comprising:
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displacing at least one acoustic source along an optical waveguide positioned proximate a well; transmitting predetermined acoustic signals from the acoustic source; receiving the predetermined acoustic signals with the optical waveguide; and calibrating the optical distributed acoustic sensing system based on the received predetermined acoustic signals. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A well system, comprising:
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an optical distributed acoustic sensing system including an optical waveguide installed in a well, and a backscattered light detection and analysis device; and at least one acoustic source which transmits predetermined acoustic signals at multiple spaced apart locations along the optical waveguide, wherein the backscattered light detection and analysis device compensates an output of the optical distributed acoustic sensing system based on the predetermined acoustic signals as received at the spaced apart locations along the optical waveguide. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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74. A method of calibrating a distributed acoustic sensing system, the method comprising:
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receiving predetermined acoustic signals along multiple acoustic sensors distributed proximate a well; and computing an acoustic point spread function along the sensors for each of multiple source locations. - View Dependent Claims (75)
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Specification