SYSTEM FOR TOWING OVERBOARD SEISMIC EQUIPMENT Russian patent published in 2013 - IPC G01V1/38 

FIELD: physics.

SUBSTANCE: system for towing overboard seismic equipment has a vessel which has a body 2 and a bottom 3, top 4 and bottom 5 decks, a stern 6 having a stern transom 7, seismic wrenches 8 and input cables 9 which are connected to seismographic ropes 10, a umbilical wrench 11 and an input cable 12 connected to a line 13 of pneumatic seismic sources. A protective device for each seismographic rope 10 is in form of a tubular channel 14, lying inside the stern 6 of the body 2 of the vessel 1. The tubular channel 14 is made from and inclined 15 and a horizontal 16 part, which form one tubular space for stripping seismographic ropes 10 in the outside water. A protective device for the line 13 of pneumatic seismic sources is form of a stern ice lug 22 with a streamlined shape, consisting of a waterproof part 23 and a cowling 24. The cowling 24 is a closed structure with an outer slip 26 for stripping the line 13 of pneumatic seismic sources.

EFFECT: improved protection of seismographic ropes, lines of pneumatic seismic sources and input cables from colliding with ice.

5 cl, 5 dwg