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Apparatus for detecting extremum parameters of cross-section of hollow bodies
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Source of seismic signals
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Source of excitation of seismic waves in water reservoirs
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Centering device for well-logging apparatus
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"druzhba" barometer
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SU762571A2
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Acoustic logging device
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SU715779A1
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Input of formation inclination meter
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Apparatus for flaw detection of casing columns
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Pneumatic source of seismic signals
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Acoustic probe signal imitator
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Voltage divider
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SU684481A1
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Device for standardizing apparatus for well logging
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SU894641A1
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Inductive geophone for seismic log
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SU744409A1
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Acoustic instrument
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SU671813A1
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Fire curtain arrangement
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SU651281A1
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Seismic signal source
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SU736031A1
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Gas detonation apparatus fire barrier
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Acoustic well-logging apparatus
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SU807193A1
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Degasifier for hydro-gas prospecting
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SU687432A1
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Acoustic logging device
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