OREANDA-NEWS. April 16, 2010. A new clean-out technology was used during drilling operations at the Buzuluk and Bogolyubov oilfields under development by OJSC Orenburgneft (a member of the TNK-BP structure) – in each case a viscoelastic fluid was pumped into the borehole, reported the press-centre of TNK-BP.

“A water-soluble container is placed in a drilling string before it is extended, then it dissolves and forms a viscous pad”, explains Konstantin Koulakov, head of the OJSC Orenburgneft well construction department. Based on this technology we perform preventive sludge level tests in the borehole and clean out bit cuttings”.

The advantage of this technology lies in is its simplicity. This method may be replicated anywhere regardless of the well layout.