DOWNHOLE MONITORING WITH DISTRIBUTED ACOUSTIC/VIBRATION, STRAIN AND/OR DENSITY SENSING
First Claim
1. A method of tracking fluid movement along a wellbore of a well, the method comprising:
- detecting vibration in the well using at least one optical waveguide installed in the well; and
determining the fluid movement based on the detected vibration.
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Accused Products
Abstract
Distributed acoustic, vibration, density and/or strain sensing is utilized for downhole monitoring. A method of tracking fluid movement along a wellbore of a well includes: detecting vibration, density, strain (static and/or dynamic) and/or Brillouin frequency shift in the well using at least one optical waveguide installed in the well; and determining the fluid movement based on the detected vibration, density, strain and/or Brillouin frequency shift. Another method of tracking fluid movement along a wellbore of a well includes: detecting a change in density of an optical waveguide in the well; and determining the fluid movement based on the detected density change.
211 Citations
37 Claims
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1. A method of tracking fluid movement along a wellbore of a well, the method comprising:
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detecting vibration in the well using at least one optical waveguide installed in the well; and determining the fluid movement based on the detected vibration. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of tracking fluid movement along a wellbore of a well, the method comprising:
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detecting strain in the well using at least one optical waveguide installed in the well; and determining the fluid movement based on the detected strain. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of tracking fluid movement along a wellbore of a well, the method comprising:
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detecting a change in density of an optical waveguide in the well; and determining the fluid movement based on the detected density change. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of tracking fluid movement along a wellbore of a well, the method comprising:
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detecting a Brillouin frequency shift for light transmitted through an optical waveguide in the well; and determining the fluid movement along the wellbore based on the detected Brillouin frequency shift. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37)
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Specification