Patent ID: 9562844
Date: 2017-02-07
CPC Classifications: E21B,G01B,G01N

Claim:
1. A device for sensing corrosion of downhole equipment, the device comprising: at least one optical fiber comprising a distal end, at least one fiber Bragg grating proximate the distal end, and a proximal end; a mass of corrodible sensor material coupled to the distal end of the at least one optical fiber, at least one surface of the mass of corrodible sensor material exposed to an environment surrounding the distal end of the at least one optical fiber; and an analysis module operatively coupled to the proximal end of the at least one optical fiber, the analysis module configured to sense and analyze differences in a light signal reflecting from the at least one fiber Bragg grating, wherein the distal end of the at least one optical fiber with the mass of corrodible sensor material coupled thereto is suspended from above the at least one fiber Bragg grating to induce stress on the at least one fiber Bragg grating due to a weight of the mass of sensor material.