OREANDA-NEWS. May 11, 2007. Tatneft-Burenie (Drilling) Company executed the plan of drilling meterage for the first four months of 2007   by 107.7% with 272.4 thousand meters penetrated, including 183.7 thousand meters for OAO TATNEFT(111.1%), for Joint Ventures and small oil companies - 88 thousand meters and drilling to the bitumen - 700 meters.

167 wells were constructed and handed over to customers including 95 wells (110.5% to the plan) for OAO TATNEFT, 71 wells for Joint Ventures and independent oil producing companies and drilling to the bitumen - 1 well

Well drilling operations with application of traditional drilling techniques were performed by 47 drilling crews. Two crews performed drilling into the producing layers in the balanced pressure mode and in the mode of underbalanced drilling (UBD).

Two drilling crews performed drilling operations outside the Republic of Tatarstan with one of them operating in Samara District and one crew operating in Orenburg district. Penetration per drilling crew amounted to 5,687 meters for the period of four months.

Starting April 1, 2007 Leninogorsk Drilling Board was singled out from the composition of the Company changing the status for OOO "TNG-Lenburneft". Well drilling operations with application of traditional drilling techniques were performed by 5 drilling crews in this company with 3 of them performing drilling operations for NGDU Leninogorskneft, 2 crews performing drilling for Tatneft-Samara Company and additionally one crew performing drilling to the bituminous deposits. 5,104 meters were penetrated in April 2007 including 2,589 meters for OAO TATNEFT, 1,858 meters for Joint Ventures and small oil companies and 657 meters drilled to the bituminous deposits.

There are nine drilling crews performing works in the old well stock doing sidetracking jobs while additionally one crew operates on a subcontracting basis.  This method (horizontal wellbore drilling and sidetracking) allowed penetrating 2 738 meters with 4 wells handed over to the customers for operation.