Controlling well operations based on monitored parameters of cement health
First Claim
1. A method of controlling a well operation, the method comprising:
- monitoring in real-time at least one parameter of cement lining a wellbore, wherein at least one optical waveguide senses the parameter; and
automatically modifying the well operation in response to the parameter being outside of a predetermined acceptable range, thereby minimizing damage to the wellbore.
1 Assignment
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Accused Products
Abstract
A method of controlling a well operation can include monitoring at least one parameter of cement lining a wellbore, the monitoring being performed via at least one optical waveguide, and modifying the well operation in response to the parameter being outside of a predetermined acceptable range. A well monitoring system can include at least one optical waveguide which is used to sense at least one parameter of cement lining a wellbore, an optical interrogation system optically connected to the at least one optical waveguide, and a control system which controls operation of at least one item of well equipment in response to information received from the optical interrogation system.
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Citations
33 Claims
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1. A method of controlling a well operation, the method comprising:
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monitoring in real-time at least one parameter of cement lining a wellbore, wherein at least one optical waveguide senses the parameter; and automatically modifying the well operation in response to the parameter being outside of a predetermined acceptable range, thereby minimizing damage to the wellbore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of controlling a well operation, the method comprising:
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sensing at least one parameter of cement lining a wellbore in real-time, the sensing being performed via at least one optical waveguide; and modifying the well operation in direct response to the parameter being outside of a predetermined acceptable range, thereby automatically minimizing damage to integrity of the wellbore, wherein an optical interrogation system detects Brillouin backscatter gain resulting from light transmitted through the optical waveguide.
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16. A method of controlling a well operation, the method comprising:
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monitoring at least one parameter of cement lining a wellbore, the monitoring being performed via at least first and second optical waveguides; and modifying the well operation in response to the parameter being outside of a predetermined acceptable range, wherein strain in the cement is imparted to the first optical waveguide, and wherein the second optical waveguide is isolated from the strain in the cement. - View Dependent Claims (17)
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18. A method of controlling a well operation, the method comprising:
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monitoring at least one parameter of cement lining a wellbore, the monitoring being performed via at least first and second optical waveguides; and modifying the well operation in response to the parameter being outside of a predetermined acceptable range, wherein an optical interrogation system detects Brillouin backscatter gain resulting from light transmitted through the first optical waveguide, and wherein the optical interrogation system detects Raman backscatter resulting from light transmitted through the second optical waveguide.
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19. A method of controlling a well operation, the method comprising:
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monitoring at least one parameter of cement lining a wellbore, the monitoring being performed via at least first and second optical waveguides; and modifying the well operation in response to the parameter being outside of a predetermined acceptable range, wherein an optical interrogation system detects coherent Rayleigh backscatter resulting from light transmitted through the first optical waveguide, and wherein the optical interrogation system detects Raman backscatter resulting from light transmitted through the second optical waveguide.
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20. A well monitoring system, comprising:
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at least one optical waveguide which senses at least one physical parameter of cement lining a wellbore in real-time; an optical interrogation system optically connected to the at least one optical waveguide; and a control system which controls operation of well equipment in direct response to the sensed parameter received from the optical interrogation system, whereby damage to the cement is automatically minimized. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A well monitoring system, comprising:
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at least first and second optical waveguides which sense at least one parameter of cement lining a wellbore; an optical interrogation system optically connected to the at least first and second optical waveguides; and a control system which controls operation of well equipment in response to information received from the optical interrogation system, wherein strain in the cement is imparted to the first optical waveguide, and wherein the second optical waveguide is isolated from the strain in the cement. - View Dependent Claims (31)
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32. A well monitoring system, comprising:
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at least first and second optical waveguides which sense at least one parameter of cement lining a wellbore; an optical interrogation system optically connected to the at least first and second optical waveguides; and a control system which controls operation of well equipment in response to information received from the optical interrogation system, wherein the optical interrogation system detects Brillouin backscatter gain resulting from light transmitted through the first optical waveguide, and wherein the optical interrogation system detects Raman backscatter resulting from light transmitted through the second optical waveguide.
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33. A well monitoring system, comprising:
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at least first and second optical waveguides which sense at least one parameter of cement lining a wellbore; an optical interrogation system optically connected to the at least first and second optical waveguides; and a control system which controls operation of well equipment in response to information received from the optical interrogation system, wherein the optical interrogation system detects coherent Rayleigh backscatter resulting from light transmitted through the first optical waveguide, and wherein the optical interrogation system detects Raman backscatter resulting from light transmitted through the second optical waveguide.
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Specification