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US 10,241,230 B2Granted
Downhole sensing using solitons in optical fiber
AssigneeHalliburton Energy Services, Inc.
InventorsSatyan Gopal Bhongale, John L. Maida
Life of this patent
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Abstract
A downhole sensing method includes modulating light to form a soliton that propagates through an optical fiber acting as a sensing element that measures a downhole parameter. The method further includes obtaining scattered light created as the soliton propagates through the optical fiber. The method further includes determining a value for a downhole parameter based on the scattered light, and displaying a representation of the value.
Claims23
A downhole sensing method, comprising:
- generating light from a light source;
- modulating, by a modulator, the light to form a soliton that propagates through an optical fiber extending within a borehole and acting as a sensing element that measures a downhole parameter of the borehole;
- detecting, by a detector, Rayleigh and either Raman or Brillouin scattered light created as the soliton propagates through the optical fiber;
- determining, by a processing unit, a value for the downhole parameter based on the scattered light;
- and
- displaying, on a display, a representation of the value.
3 more elements
A downhole sensing system, comprising:
- a light source that generates light;
- modulation equipment that modulates the light to form a soliton;
- optical fiber extended in a borehole and coupled to the modulation equipment;
- a detector that detects Rayleigh and either Raman or Brillouin scattered light created by the soliton propagating through the optical fiber;
- and
- a processing unit, coupled to the optical fiber, that determines a value for a downhole parameter of the borehole based on the scattered light created as the soliton propagates through the optical fiber.
3 more elements
A downhole sensing system, comprising:
- a light source that generates light;
- modulation equipment that modulates the light to form a soliton;
- optical fiber extended in a borehole and coupled to the modulation equipment;
- point sensors coupled to the optical fiber;
- a detector that detects Rayleigh and either Raman or Brillouin scattered light created by the soliton propagating through the optical fiber;
- and
- a processing unit, coupled to the detector that determines a value for a downhole parameter of the borehole at a location of at least one point sensor, wherein the processing unit determines the value based on the scattered light.
4 more elements
Dependencies are inferred from the claim text.