COMPLEX FOR TOWING OUTBOARD SEISMIC EQUIPMENT Russian patent published in 2011 - IPC G01V1/38 

FIELD: mining engineering.

SUBSTANCE: towed outboard seismic equipment consists of vessel with hull, deck, vessel bottom and stem end. The stem end is equipped with a stem transom and seismic winches whereto seismic facilities are connected. The seismic facilities correspond to seismographic braids and lines of seismic pneumatic sources. Also, in the vessel hull between the deck and the bottom there are narrow long hollow spaces designed for paying out seismic equipment through them beyond boundaries of the vessel hull beneath a lower edge of floating ice and having ends on two sides, ones of which are located on the stem transom of the stem end below waterline and are communicated with outside water, others are positioned in the vessel hull. There are narrow long hollow spaces in the stem end of the vessel hull made in form of tubular channels for each seismographic braid and each line of seismic pneumatic sources. Ends of tubular channels in the vessel hull are arranged above waterline. Ends of tubular channels at the stem transom are arranged at different levels by height of the latter. The complex is equipped with driven rolls to direct seismographic braids and lines of seismic pneumatic sources into the tubular channels. Hawses comprising ends of the tubular channels installed in the stem end of the vessel hull are made on the vessel deck. Ends of the tubular channels have bells. The seismic winches with the seismic equipment are mounted on the vessel deck.

EFFECT: operational reliability of seismic equipment, simplification and compactness of complex and considerable reduction of expenditures for re-equipment of vessel for complex of seismic prospecting at operation in water area covered with ice.

5 cl, 4 dwg