RU1778129C
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Drilling mud
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SU1765608A1
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Active pipeline testing device
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SU1740641A1
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Well completion method
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SU1724853A1
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Packer
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SU1670097A1
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Plugging compound softener
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SU1654542A1
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Grouting mixture
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SU1650875A1
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Method of consolidating sandy soil
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SU1645739A1
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Device for elimination of gas line leak
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SU1566163A2
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Arrangement for replacing section of pipe-line
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SU1573290A2
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Multidepartment compressor station
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SU1638420A1
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Method for ballasting floating pipelines
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SU1571217A1
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Packer
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SU1537937A1
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Sealed cover
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SU1550095A1
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Plugging mix
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SU1542950A1
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Method of treating clay-base drilling mud
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SU1553652A1
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Plugging composition
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SU1529045A1
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Flowmeter with changeable diaphragm
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SU1518487A1
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Lightweight plugging composition
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SU1507954A1
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Lightweight plugging composition
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SU1728477A1
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Well screen
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