RU1795072C
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Core drilling bit
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SU1724673A1
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Clayless flushing fluid
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SU1712589A2
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Method for locating casing string damage
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SU1671674A1
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Antivibratory lubricant for drilling holes
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SU1731251A1
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Foam quenching method
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SU1717615A1
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Foam-forming compound
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SU1657635A2
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Borehole flowmeter
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SU1613572A1
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Method of flushing borehole with gas-liquid mixture
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SU1645611A1
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Gas-liquid mixture injection unit
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Apparatus for flashing well with gas and liquid mixture
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SU1632968A1
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Process for preparing reagent for drilling clay-free fluids
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SU1525308A1
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Device for pumping gas/liquid mixture
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SU1539307A1
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Polymeric well-plugging composition
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SU1534185A2
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Downhole flowmeter
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SU1463907A1
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Deep-well flowmeter
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Device for pumping gas/liquid mixture
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SU1435303A1
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Turbocyclone
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SU1423734A1
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Sensor of downhole flowmeter
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SU1416656A1
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Rotary drilling bit
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SU1402661A1
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Method of plugging boreholes with hardening gas-liquid mixtures
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