Method and device for operation of equipment installed in marine

Details Method and device for operation of equipment installed in marine Method and device for operation of equipment installed in marine

1993-03-17

1994-07-12

Pihulic, Daniel T.

Acoustics

Geophysical or subsurface exploration

Seismic source and detector

367 16, 367 17, G01V 138

Patent

active

053290712

ABSTRACT:
A method and device for operating special equipment provided in seismic cables, i.e., gun cables and streamers (2, 3) during seismic surveys at sea, whereby energy is supplied through wires (4), or wireless transmitting/receiving devices, to the equipment (B, C, D) in the cables, without this energy supply affecting the seismic surveys. In order to achieve this, low output energy (A) is supplied through wires (4, 17) to electrical units, such as a transformer (5) in a sealed chamber (9) used to charge batteries (6) in a separate sealed chamber (10) so that they can emit for brief periods sufficiently high outputs of energy in order to perform the necessary operation of the equipment such as motors (7) and fluid pumps ( 14 ) . Control devices ( 13 ) are provided where required for control of the operation.

REFERENCES:
patent: 3774570 (1973-11-01), Pearson
patent: 3794965 (1974-02-01), Charske
patent: 3896756 (1975-07-01), Pearson et al.
patent: 4193129 (1980-03-01), Wiggins et al.
patent: 4912684 (1990-03-01), Fowler

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