Distribution measurement system for pressure, temperature, strain of material, monitoring method for carbon dioxide geological sequestration, assessing method for impact of carbon dioxide injection on integrity of strata, and monitoring method for freezing using same
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United States of America Patent
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Nov 28, 2017
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N/A
app pub date -
Aug 7, 2013
filing date -
Aug 17, 2012
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Abstract
Distributions of a Brillouin frequency shift and a Rayleigh frequency shift in optical fibers set up in a material are measured from scattered waves of pulse laser light entered into the optical fibers, and distributions of pressure, temperature, and strain of the material along the optical fibers at a measurement time point are analyzed using coefficients that are inherent to the set up optical fibers and correlate pressure, temperature, and strain of material with the Brillouin frequency shift and the Rayleigh frequency shift.
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International Classification(s)
- G01K:MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT;....
- G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- G01B:MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIME....
- G01D:MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VAR....
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