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Method of tightness keeping of thread joint of casing string
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Blade underreamer
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Casing pipe for wells in permafrost interval
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Method of mechanical treatment of stocks on nc machines
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Efficiency upgrading method for electrical precipitation of dielectric liquids and gases and electrical precipitator
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Non-destructive method of stress measurement in object surface layer and stress gauge
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Method of sealing casing by gasket with memory
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Method of sealing by restricted gasket
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Method for casing pipe sealing and device for its implementation
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Method for extraction of filter from well in parts, and device for its implementation
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Device for lifting filter out from well
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Method to withdraw filter from well and device for its realisation
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Method of sealing casing pipes at screwed joints and at through damages
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Device of cylindrical form to divide into parts metallic objects fallen to well with use of anodic dissolution
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Device for separation of pipes fallen from outside into well by anodic dissolution
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Extending reamer
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Procedure for casing cementing and device for its implementation
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Device for extraction of pipes fallen to well
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Method for extraction of fallen pipes from well, and device for its implementation
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Device for additional sealing of coupling and conical threaded tube connections
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