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1 554 609

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Application

4386392/25, 1988-03-01

(22)

Actual filing date

1988-03-01

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Published

1994-09-15

(72)

Inventor

Lunev V.G.Sokolov G.N.

SEA SEISMIC PROSPECTING PNEUMATIC SOURCE Russian patent published in 1994 - IPC

Abstract SU 1554609 A1

FIELD: sea seismic prospecting. SUBSTANCE: source has case 1 provided with exhaust ports 2, control and working chambers 3 and 4. Working chamber 4 is overlapped by lock member, which is formed by rod 5, lower and top plates 7 and 6. Longitudinal channel 8 provided with drain channels 9, and start channel 10 are made in rod 5. Compressed air enters the source along supply channel 16. Armature opens mouth of start channel 10, when current pulse is applied to coil of electric pneumatic valve 18. Compressed air enters start space 11 from control chamber 3 and shifts lock member up. Compressed air is ejected into environment through open output 15 from working pneumatic chamber and ports 2. Seismic signal is excited. Length of start channel 10 may be reduced due to such a design. EFFECT: improved seismic efficiency due to stability of exhaust moment. 4 cl, 2 dwg

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SU 1 554 609 A1

Authors

Lunev V.G.

Sokolov G.N.

Dates

1994-09-15—Published

1988-03-01—Filed

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