S.V. Goshovskyi, P.T. Syrotenko. DOPPLER EFFECT AS WAYS TO RECEIVE ADDITIONAL INFORMATION AND EVALUATION OF SPEED CHANGE IN THE MARINE ENVIRONMENT IN GAS LEAKING FROM SEABED

https://doi.org/10.15407/gpimo2017.03.086

Geology and Mineral Resources of World Ocean 2017, 13 (3): 86-91

S.V. Goshovskyi, P.T. Syrotenko

Ukrainian State Geological Prospecting Institute, Kyiv

DOPPLER EFFECT AS WAYS TO RECEIVE ADDITIONAL INFORMATION AND EVALUATION OF SPEED CHANGE IN THE MARINE ENVIRONMENT IN GAS LEAKING FROM SEABED 
An analysis was made of the possibility of using the Doppler effect to detect gas bubbles that arise when impregnating natural gas from the seabed. Today we consider it expedient, when using the acoustic frequency range for sensing a water column with gas bubbles, to detect gas bubbles in the marine environment and estimate the speed of their lifting to the sea surface and establish the trajectory of the movement of bubbles and their number. It is necessary to use both sound and ultrasonic frequency bands for sounding the environment to classify different sized bubbles and assess their concentration . However, the studied area of the marine environment in research on the ultrasound frequency  will reduce by reason of their strong absorption. We believe that nonlinear acoustics can be used to prevent this condition, which in addition allows you to obtain an ideal radiation pattern without side lobes and perform sounding at lower frequencies than  using linear acoustics. The application of the Doppler theory in marine surveys of natural gas impregnation can increase its exploration and extraction efficiency. 
Keywords: gas bubbles, image of a water column, classification of bubbles, nonlinear acoustics.

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