RU1793401C
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Source of seismic waves and hydraulic mechanism for lifting and lowering of transducer
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SU1728819A1
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Source of seismic waves
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SU1674035A1
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Method of seismic exploration on fields with unstable top part of the profile
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SU1695244A1
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High-voltage line of seismic wave well source
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SU1695242A1
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Seismic prospecting method
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Apparatus for transmitting information and supply voltage to down-hole acoustic logging instrument
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SU1562878A1
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Apparatus for limiting increments in meter of arrival time of acoustic signal
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SU1638688A1
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Downhole tool generator for acoustic well logging
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SU1562876A2
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Apparatus for automatic adjusting of correlation meter of signals of acoustic logging
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Apparatus for automatic tuning of correlation meter
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SU1543364A2
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Equipment for acoustic logging of oil and gas wells
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SU1485172A1
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Method and apparatus for acoustic logging
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SU1453349A2
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Apparatus for acoustic well-logging
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Device for acoustic logging of wells
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Device for acoustic logging of wells
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Hydraulic source of seismic waves
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Device for determining m-th moment of pulsed transient function
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Source of seismic waves
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Device for measuring kinematic characteristics of signal in acoustic well logging
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Method of seismic surveying
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