Patent RU-2601769-C2 (RU)
Title: Radio-hydroacoustic system for mobile search of hydrocarbon deposits and bottom objects, detecting signs of occurrence of hazardous sea phenomena on sea shelf
Inventor: MIRONENKO MIKHAIL VLADIMIROVICH
IPC: G10K11/00
Filed: 2015-04-06
Granted: 2016-11-10
Abstract: FIELD: hydro acoustics. 
     SUBSTANCE: invention relates to hydroacoustic methods and implementing their systems for searching for hydrocarbon deposits, as well as bottom search objects for various purposes and physical nature, preferably in water areas of sea shelf. Summary: mobile system for searching for hydrocarbon deposits and bottom objects, detecting signs of occurrence of dangerous sea phenomena on sea shelf includes arranged in medium of radiating and receiving acoustic transducers formed between working zone of nonlinear interaction and parametric conversion of measured information waves and medium pumping waves as parametric antenna connected to converters respectively, channel for generating and amplifying low-frequency pervious medium pumping signals, as well as channel for receiving, amplifying, processing, extracting and recording information signals, wherein length of working zone of measuring parametric system corresponds to length of investigated water area, for which radiating and receiving transducers of acoustic signals are spaced at its opposite boundary, wherein radiating transducer is placed on mobile carrier and comprises low-frequency and high-frequency radiators, first of which is made with possibility of horizontal orientation of its beam pattern towards receiving transducer. At that, high-frequency emitter is made with possibility of orientation of its beam pattern on sea bottom, besides, channel for generating and amplifying emitted medium pumping signals is dual-channel containing low-frequency and high-frequency channels, each including series-connected stabilised frequency generator, power amplifier, units for matching amplifier outputs with underwater cables which are connected to corresponding radiating transducers, besides, receiving transducer comprises two horizontally spaced apart receiving unit each of which is connected with the sea surface radio module, which via a radio link is connected to receiving channel system, comprising series-connected with corresponding channel double-channel receiving radio unit of information signals, two-channel broadband amplifier of information signals, unit for measuring phase difference of information signals, time scale of information signals in high-frequency domain, narrow-band spectral analysis unit and functionally connected with recorder spectra extracted information signals. At that, system comprises means of determining position of mobile emitting converters in real time. At that, system includes satellite communication with central station, configured to remote control of its operation in mobile search of hydrocarbons and bottom objects. 
     EFFECT: technical result is provision of efficient mobile searching for hydrocarbon deposits and bottom objects for various purposes and physical nature, long range (advanced) detection of signs of occurrence of dangerous sea effects on extended water areas sea shelf, determination of point objects and boundaries of hydrocarbon deposits on sea bottom with high accuracy, as well as identification of measured information waves generated by artificial and natural sources, as well as hazardous effects of marine environment and Earth's crust in wide frequency range enveloping one kilohertz-hundreds-tens-units-fractions of Herz. 
     1 cl, 13 dwg