OREANDA-NEWS. March 05, 2010.
Oil production
The volume of crude oil produced in the Republic of Tatarstan in February amounted to 2,487.7 thousand tons accounting for 100.4% versus February 2009. The crude oil production amounted to 5,246.3 thousand tons during the two months period or 100.6% to the level of 2009. Independent oil companies produced 1,063.9 thousand tons of crude oil, which is 4.5 thousand tons more than the amount produced in 2009 (100.4%), reported the press-centre of TATNEFT.

OAO TATNEFT produced 1,984.5 thousand tons of crude oil in February, which made 100.5% versus February 2009. The above-the-plan production amounted to 36.1 thousand tons (101.9%). The production of two months amounted to 4,182.4 thousand tons (+27.5 thousand tons or 100.7% versus 2009). The above-the-plan production amounted to 76.8 thousand tons. The amount of 4,066.5 thousand tons was delivered with the above-the-plan delivery amounting to 63.4 thousand tons.

Drilling
Conventional Drilling

The total penetration during a two months period of 2010 amounted to 114.2 thousand meters (109.2 thousand meters in 2009): 97.4 thousand meters (99.1 thousand meters in 2009) were penetrated for OAO TATNEFT, including 93.2 thousand meters of production drilling and 4.2 thousand meters of exploratory drilling; 4.8 thousand meters (5.4 thousand meters in 2009) were drilled for the OAO TATNEFT subsidiary companies, including 3.6 thousand meters of production drilling and 1.2 thousand meters of exploratory of drilling; 12.0 thousand meters (4.7 thousand meters in 2009) were drilled for the joint ventures and independent oil companies, including в 10.8 thousand meters of production drilling and 1.2 thousand meters of exploratory drilling..

71 wells (45 wells in 2009) were constructed and handed over to customers and out of this amount 37 wells (32 wells in 2009) were constructed for OAO TATNEFT, including 36 production wells and 1 exploration well; 3 wells (2 wells in 2009) were drilled for the OAO TATNEFT subsidiary companies, including 3 exploration wells; 31 wells (11 wells in 2009) were penetrated for the joint ventures and independent oil companies, including 29 production wells and 2 exploration wells.

Drilling in the Old Well Stock

Total penetration of laterals and horizontal wellbores for two months of 2010 amounted to 4.1 thousand meters (4.8 thousand meters in 2009): 2.7 thousand meters (3.0 thousand meters in 2009) were penetrated for OAO TATNEFT, 1.4 thousand meters (1.8 thousand meters in 2009) for the joint ventures and independent oil companies.

9 wells (14 wells in 2009) were handed over to customers, including 6 wells delivered for OAO TATNEFT and 3 wells (3 wells in 2009) for the joint ventures and independent oil companies.

In 2010, 44 drilling crews performed drilling operations with application of traditional drilling techniques. 8 drilling crews were engaged in drilling laterals and horizontal wellbores with 5 of them drilling for NGDUs (Oil and Gas Production Boards) OAO TATNEFT and 3 crews performed drilling for outside companies. Penetration per drilling crew for 2010 amounted to 2,577 meters, while in 2009 the penetration per crew amounted to 2,182 meters.

4.8 thousand meters were penetrated out of the Republic of Tatarstan. 9.5 thousand meters were penetrated in horizontal wells and multi-branched downhole splitters.

Well Workover
807 well remedial operations were performed in February 2010 and 1,426 well remedial operations were performed during the period of two months. (1,599 wells during 2 months of 2009).

12 well repair operations were performed in OOO Tatneft-Samara, including 8 well remedial operations and 4 well workover operations.

The workover operations were performed at 393 wells during 2 months of 2010 (211 wells in February), including production string sealing in 68 wells; shutting-off individual layers and recompletion in other intervals in 50 wells; transfer of the wells into different categories and wells completion for injection in 18 wells; failure liquidation and cleaning of the electrical cable and bottom hole areas in 50 wells.

121 wells were worked over with application of coil tubing (72 wells in February), including 24 wells worked over through the annulus.

Formation hydrofracking operations were performed at 33 wells (23 wells in February). The cumulative incremental recovery amounted to 3,140 thousand tons.

3 slim holes were drilled and completed for OAO TATNEFT during 2 months of 2010. Two crews are now engaged in construction of the wells: one well in NGDU Aznakaevskneft and another one in NGDU Prikamneft.

Works on oil recovery enhancement were performed at 360 wells (220 wells in February), including chemical treatment methods applied at 212 wells.

The incremental oil production resulting from application of the enhanced oil recovery methods amounted to 847 thousand tons with the chemical methods accounting for the production of 407 thousand tons.

Operations for preparation and delivery of acid compositions were carried out at 366 wells during two months of 2010 and the production of chemical products amounted to 6,314 tons for the amount of 135 million rubles.