ARRANGEMENT FOR LOWERING SEISMIC RADIATOR INTO BOREHOLE Russian patent published in 1995 - IPC

FIELD: seismic survey. SUBSTANCE: arrangement is used for lowering seismic radiator to under low speed zone by means of pipes with subsequent connection of coaxial power cable. Coaxial power cable 4 is connected with pulse generator and shuttle 5. Radiator 7 is secured to end of pipe string 6, which is lowered into ground to under low speed zone. Shuttle 5 is forced through pipe string 6 by liquid pressure until contacts of radiator 7 are closed. After that a series of discharges is generated. EFFECT: improved efficiency and reliability of radiator lowering into borehole. 2 cl, 3 dwg