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SU1780575A3
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Method and system for oil collecting and pipeline transportation
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RU1778832C
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Anode grounding device
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Variable-speed drive
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Installation for preparation of hydrogen sulfide- containing oil
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RU1787039C
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Sedimentation reservoir for preparation of oil
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RU1799279C
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Separating plant
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Device for separating mechanical admixtures in pipeline
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Method for cathodic protection of pipelines against corrosion
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Device for repair of casing in wells
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Method of collecting and transporting oil well production
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SU1763640A1
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Cutoff filter
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Plant for well production separation
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Device for feeding chemical agent into pipeline
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Device for separating well production
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SU1740034A1
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Method for oil gas recovery from tanks
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Method of cleaning oil well sewage
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SU1766944A1
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Method for dehydratation of oil with increased content of mechanical impurities
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SU1756538A1
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Method for making plugging-back compound
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SU1745466A1
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Steel tube welding method
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RU1770554C
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Method for ore pool development with use of in-situ combustion
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