Analysis of mechanical and thermal response of rock due to laser drilling using optical fiber Bragg grating sensors

Sully M. M. Quintero; Guilherme B. Patusco; Hugo G. da Silva; Felipe O. Furtado; Luiz C. G. Valente; Arthur M. B. Braga

doi:10.1117/12.2194836

28 September 2015 Analysis of mechanical and thermal response of rock due to laser drilling using optical fiber Bragg grating sensors

Sully M. M. Quintero, Guilherme B. Patusco, Hugo G. da Silva, Felipe O. Furtado, Luiz C. G. Valente, Arthur M. B. Braga

Author Affiliations +

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963441 (2015) https://doi.org/10.1117/12.2194836
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

Optical fiber Bragg grating sensors (FBGs) were used to measure strain and the temperature field that develop during laser drilling of carbonate rock samples. The shear deformation and high temperature gradient measured are clearly correlated with traces of fractures observed. Beyond the volume directly evaporated by laser exposure, a greater volume around the drilling area was fractured. From the perforation process point of view, it results in an increase of efficiency.

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Sully M. M. Quintero, Guilherme B. Patusco, Hugo G. da Silva, Felipe O. Furtado, Luiz C. G. Valente, and Arthur M. B. Braga "Analysis of mechanical and thermal response of rock due to laser drilling using optical fiber Bragg grating sensors", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963441 (28 September 2015); https://doi.org/10.1117/12.2194836

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