SEISMOGRAPHIC VESSEL FOR SEISMIC EXPLORATION IN ARCTIC SEAS REGARDLESS OF ICE CONDITIONS

摘要

FIELD: shipbuilding; data processing.;SUBSTANCE: invention relates to geophysics and can be used in seismic survey of underwater oil and gas deposits in Arctic seas. Disclosed is a ship with structure combining advantages of a surface ship and advantages of a multipurpose underwater station in part using hydroacoustic radiators and towed in water under ice seismic cables for 3D seismic technology. Outlet of towed seismic cables and hydroacoustic radiators is performed by means of sliding structures fitted in vertical shafts in ship bottom outside zone of action of ice. For receiving seismic waves reflected from ground side linear receiving antennae are mounted on retractable structures. Navigation bases with a common centre are formed from receivers by positioning them in a plane parallel to plane of ship deck. Axis of one base is directed along axial line of ship, and axis of other base is directed along traverse to right. Seismic cables are made from hydrosensor cable.;EFFECT: high reliability of seismic survey in icy conditions, reducing negative effect of seismic survey on environment and sea environment.;1 cl