Reducing Disturbance During Fiber Optic Sensing
First Claim
1. A system for reducing disturbance during in-well fiber optic sensing, the system comprising:
- a device insulated to be disturbance-resistant, the device in a fiber optic communication path between a source and a target configured to be received in a well, the device configured to receive a parameter sensing signal transmitted from the source to the target, the device configured to produce a reference signal; and
a signal interrogation system connected to the device in the fiber optic communication path, the signal interrogation system configured to;
receive the reference signal from the device;
receive a response signal from the target in response to the parameter sensing signal, the response signal representing the parameter of interest, and determine the parameter of interest based, in part, on the reference signal and the response signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Reducing disturbance during fiber optic sensing. An in-well fiber optic sensing system includes a device insulated to be disturbance-resistant. The device is in a fiber optic communication path between a source and a target configured to be received in a well. The device is configured to receive a parameter sensing signal transmitted from the source to the target and produce a reference signal. The fiber optic sensing system includes a signal interrogation system connected to the device in the fiber optic communication path. The signal interrogation system is configured to receive the reference signal from the device and to receive a response signal from the target in response to the parameter sensing signal. The response signal represents the parameter of interest. The signal interrogation system is configured to determine the parameter of interest based, in part, on the reference signal and the response signal.
-
Citations
20 Claims
-
1. A system for reducing disturbance during in-well fiber optic sensing, the system comprising:
-
a device insulated to be disturbance-resistant, the device in a fiber optic communication path between a source and a target configured to be received in a well, the device configured to receive a parameter sensing signal transmitted from the source to the target, the device configured to produce a reference signal; and a signal interrogation system connected to the device in the fiber optic communication path, the signal interrogation system configured to; receive the reference signal from the device; receive a response signal from the target in response to the parameter sensing signal, the response signal representing the parameter of interest, and determine the parameter of interest based, in part, on the reference signal and the response signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for reducing disturbance during in-well fiber optic sensing, the method comprising:
-
transmitting a parameter sensing signal from a source to a downhole target through a disturbance-resistant device to measure a parameter of interest at the downhole target, the disturbance-resistant device producing a reference signal that is substantially disturbance-free in response to receiving the parameter sensing signal; receiving the reference signal produced by the disturbance-resistant device; receiving a response signal from the downhole target in response to the parameter sensing signal, the response signal representing the parameter of interest; and subtracting the reference signal from the response signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A system for reducing disturbance during in-well fiber optic sensing, the system comprising:
-
a disturbance-resistant device including a sensor to receive a parameter sensing signal from a source and to generate a reference signal responsive to the parameter sensing signal, the reference signal is substantially free of disturbances external to the disturbance-resistant device, the parameter sensing signal transmitted to a downhole target sensor through the disturbance-resistant device; a signal interrogation system connected to the disturbance-resistant device, the signal interrogation system to; receive the reference signal from the disturbance-resistant device; receive a response signal from the downhole target sensor in response to the parameter sensing signal, the response signal representing the parameter of interest; and subtract the reference signal from the response signal. - View Dependent Claims (20)
-
Specification