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SU1744658A1
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Area seismic prospecting method
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Method of area seismic survey
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Method of area seismic survey
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Drill hole earth waves source
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Device for exciting flexible oscillations
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Seismic survey method
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Device for measuring temperature in a well during drilling process
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Thermomagnetometer
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Device for determining upper boundary of pipe string seizure
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Device to monitor movement of borehole cable
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Device for excitation of acoustic signal in hole
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Device for checking rotation speed of turbodrill
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Collar locator
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Method of determination of porosity coefficient of clays
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Method of determination of total porosity factor
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Apparatus for investigating physical properties of rocks at high temperatures and pressures
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Method of determining upper boundary of pipe string seizure
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Bottom gravity meter
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Method of multiwave seismic prospecting
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SU1548444A1
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Method of determining threshold pressure value
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