TatNIPIneft R&D Institute

Expandable seal casing patch for 146-mm production casing

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Breakout tool for casing

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Retrievable packer-plug for workover operations

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Tehnology for tubing pressure testing (including interval testing) in production and injection wells

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Technology for selective access to multilateral well offshoots using coiled-tubing unit

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Drillable packers

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Remedial and water shutoff jobs using silicate-based compositions

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Sealing of casing leak and restoration of cement sheath integrity with acetone-formaldehyde resin

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Remedial cementing using light-weight cement

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Selective shutoff of bottom water in cavernous Fractured reservoirs

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Water shutoff treatment using vinyl polymers

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Technology for restoring production casing intergrity In conditions of high fluid loss in upper horizons

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Non-damaging well killing technology

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Acid compositions and matrix acidizing technologies

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Carbonate reservoir stimulation combined with prior chemical water shutoff

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Jet acidizing of horizontal wellbores

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Well workover