BOREHOLE SOURCE OF ELASTIC VIBRATIONS Russian patent published in 2005 - IPC

FIELD: petroleum extractive industry, methods for prospecting geophysics.

SUBSTANCE: the borehole source of elastic vibrations has a borehole tool with an ignition circuit, electrohydropulse discharger with two electrodes, device for feeding of metal wire to the operating interelectrode space. The feeding device has a drum for keeping of a stock of wire, wire pulling-through mechanism. The wire pulling-through mechanism is made in the form of two metal plates fastened with one ends on diametrically opposite sides of a rod. The plates are pressed by springs by opposite sharpened ends to the wire located on the guide platform and oriented at an angle to it providing for alternative engagement and motion in the direction of the interelectrode space at a reciprocating motion of the rod connected with the aid of an axle and linkage to the movable armature of the solenoid. The solenoid and the linkage connected to the solenoid armature are located on one side of the dielectric plate, and the drum for keeping of wire, two spring-loaded metal plates, guide platform for the wire and the rod are positioned on the other side of the dielectric plate. The rod and the linkage connected to the solenoid armature are connected by an axle passing through an opening in the dielectric plate. A relay is installed in the borehole tool. A Rogovsky belt is installed in the discharging circuit of the reservoir capacitors of the borehole tool.

EFFECT: enhanced service life, reliability, reduced specific consumption of power per cycle of investigations and per unity of growth of yield of the borehole.

4 dwg, 4 tbl