Patent ID: 7342217
Filing Date: 2008-03-11
Classification: G01D,G01L,G01N,G02B

Abstract:
1. A system for the measurement and surface data acquisition for optical fiber sensors containing fiber Bragg gratings for the sensing of physical quantities originated in one oil and/or gas well or in a set of oil and/or gas wells, wherein said system comprises: an optical system ( 30 ) with an optical source ( 31 ) connected to a modulator ( 32 ) for conveying light through a coupler ( 33 a ) and an optical switcher ( 20 ) to sensors ( 10 a , 10 b ) for sensing physical parameters in the oil and/or gas wells, signals originating from sensors ( 10 a , 10 b ) being directed to an electronic module ( 40 ), where they are processed and converted into electrical signals through detectors ( 36 a , 36 b , 36 c , 36 d ) that optimize the noise/signal ratio, the system being constructed and arranged for: a) transmitting the optical signal generated by source ( b) directing the optical signal of the first output (Output c) in a way analogous to that of b), also directing the optical signal of the second output (Output d) conveying channel e) conveying in a way analogous to d), channel f) arranging for detector ( g) arranging in a way analogous to f), detector (