Technique and system for measuring a characteristic in a subterranean well
AssigneeSensor Highway Limited
InventorsRobert J. Schroeder, Jeffrey Tarvin, Rogerio T. Ramos, George A. Brown
Life of this patent
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Abstract
A technique usable with a subterranean well includes deploying a first optical sensor downhole in the subterranean well. The technique includes observing an intensity of backscattered light from the first optical sensor to measure a distribution of a characteristic along a portion of the well. The technique includes deploying a second sensor downhole to measure the characteristic at discreet points within the portion. The second sensor is separate from this first sensor and includes at least one interferometric sensor.
Claims50
A method usable with a subterranean well, comprising:
- deploying a first optical sensor downhole in a remote location;
- observing an intensity of backscattered light from the first optical sensor to measure a distribution of a characteristic along a segment of the remote location;
- and
- deploying a second optical sensor downhole to measure the characteristic at discrete points within the segment, the second sensor being separate from the first optical sensor and comprising at least one interferometric sensor.
A system usable with a subterranean well, comprising:
- a first optical sensor to measure a distribution of a characteristic along a portion of the well, the first optical sensor adapted to reflect incident light so that an intensity of backscattered light is observed to measure the characteristic;
- and
- a second optical sensor extending downhole to measure the characteristic at discrete points within the portion, the second optical sensor being separate from the first optical sensor and comprising at least one interferometric sensor.
A method comprising:
- deploying a first optical sensor in a remote location;
- observing an intensity of backscattered light from the first optical sensor to measure a distribution of a characteristic along a segment of the remote location;
- and
- deploying a second optical sensor in the remote location to measure the characteristic at discrete points within the segment, the second optical sensor being separate from the first optical sensor and comprising at least one interferometric sensor.
A system comprising:
- a first optical sensor located at a remote segment to measure a distribution of a characteristic along a segment at the remote location;
- and
- a second optical sensor extending downhole to measure the characteristic at discrete points within the segment, the second sensor being separate from the first optical sensor and comprising at least one interferometric sensor.
Dependencies are inferred from the claim text.