Remote Laser Burning of Liquid Hydrocarbons on Water and Ice Surfaces

Transmission spectra were measured and absorption coefficients were determined for gas condensate and oil using laser radiation with wavelength 1.07 μm. The dependences of the reflection coefficient on the laser-radiation angle of incidence on the surface of oil, gas condensate, and diesel fuel were obtained. Threshold intensities of laser radiation providing stable ignition and subsequent self-sustaining combustion of hydrocarbons on water and ice surfaces were experimentally determined. Laser afterburning (scanning) of heavy oil fractions remaining on the water surface after self-sustaining combustion was performed for the first time.