OREANDA-NEWS. October 20, 2009.  Oil production.  The production of the oil companies in the Republic of Tatarstan amounted to 2,684,707 tons of crude oil in September and it amounted to 24,301,349 tons for the period of nine months, reported the press-centre of TATNEFT.

OAO TATNEFT produced 2,131,408 tons of crude oil in September (102.1% versus September of the last year) with the above-the-plan production amounting to 38,447 tons (101.8%). The Amount of 2,060,120 tons of oil was delivered with the above-the-plan delivery volume amounting to 23,200 tons.

OAO TATNEFT produced 19,328,875 tons of crude oil during the period of nine months with the above-the-plan production amounting to 325,963 tons (101.7%). 19,217,600 tons of oil were delivered with the above-the-plan delivery amounting to 697,330 tons.

Drilling
The total penetration during the period of nine months of 2009, taking into account operation of OOO TNG-Lenburneft, amounted to 436 thousand meters (617 thousand meters during the period of 9 months of 2008), including: 358 thousand meters for OAO TATNEFT (380 thousand meters during the period of 9 months of 2008) with production drilling amounting to 338 thousand meters and exploratory drilling amounting to 20 thousand meters.

29 thousand meters were penetrated for the subsidiary companies of OAO TATNEFT (32 thousand meters during 9 months of 2008), including 6 thousand meters of production drilling and 23 thousand meters of exploratory drilling.

49 thousand meters were drilled for joint ventures and independent oil companies (205 thousand meters in during 9 months of 2008), including 43 thousand meters of production drilling and 6 thousand meters of exploratory drilling.

282 wells were constructed and handed over to customers (391 wells during 9 months of 2008), including 228 wells built for OAO TATNEFT (239 wells during 9 months of 2008), including 209 production wells and 19 exploratory wells. 14 wells were built for the subsidiary companies of OAO TATNEFT (15 wells during 9 months of 2008), including 6 production wells and 8 exploratory wells.

40 wells were constructed for joint ventures and independent oil companies (137 wells during 9 months of 2008), including 32 production wells and 8 exploratory wells.

Wells Workover
837 well remedial operations were performed in September 2009 and 7,250 well remedial operations were performed during the period of nine months. 28 well remedial operations were performed in ZAO Tatneft-Samara (5 wells in September).

The workover operations were performed at 1,560 wells during the period of nine months of the year (185 wells in September), including production string sealing in 229 wells; shutting-off individual layers and recompletion in other intervals in 274 wells; transfer of the wells into different categories and wells completion for injection in 109 wells; failure liquidation and cleaning of the electrical cable and the bottom hole areas in 259 wells; physical well abandonment and re-abandonment in 32 wells.

423 wells were worked over with application of coil tubing (62 wells in September), including 125 wells worked over through the annulus.

Hydrofracking operations were performed at 98 wells (12 wells in September) with cumulative incremental oil production amounting to 2,873 thousand tons of crude oil.

15 slim holes were drilled and completed for OAO TATNEFT. Drilling of well No. 35005 is performed in NGDU Leninogorskneft at present.

24 wells were also drilled and completed for small oil companies. Four wells are in the process of drilling for OOO Bytex at present, while one other well is in the process of completion.

Works on oil recovery enhancement were performed at 1,339 скважинах (157 wells in September), including chemical treatment methods applied at 758 wells (80 wells in September).
The incremental oil production resulting from application of the enhanced oil recovery methods amounted to 3,849 thousand tons with chemical methods accounting for the production in the amount of 1,840 thousand tons.

Operations for preparation and delivery of acid compositions were carried out at 1,460 wells during the period of nine months of 2009 while the production of chemical products amounted to 23 thousand 146 tons for the amount of 498 million rubles.