Pskovgeokabel has successfully set up new production of flexible drill-strings (polymer armored tubing) which are in demand both in the domestic and foreign markets.

Polymer armored tubing first appeared at the enterprise in 2005. By that time the company had already set up production of special geophysical cable lines with increased axial stiffness for horizontal well surveys or the delivery of geophysical tools to the bottom-hole via the horizontal section of the well. At present Pskovgeokabel is the only manufacturer of such highly-demanded products. The very first polymer armored tubes were designed as an alternative to cables or coiled tubing.

As far back as 2006 the first experience in operating polymer armored tubing was gained at a well located in Volgograd oblast and scheduled for abandonment. A paraffin-sand blind plug was successfully overcome at the depth of 450 m by flushing with hot water. A polymer armored tubing with the internal diameter of 15 mm mounted on a spooling device was used.

Gradually a whole range of technological operations was implemented using special pulling units with polymer armored tubing. Such operations included well testing, bottom-hole cleaning, bottom-hole flushing to remove proppant residues, removal of hydrate and asphaltene plugs, elimination of water from gas-well bottom-hole, etc.

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