OREANDA-NEWS. December 10, 2012.
Crude Oil Production
The amount of 2,135,082 tons of crude oil was produced at JSC TATNEFT in November or 100.2% versus November 2011 (+3,990 tons). The amount of 23,798,202 tons of crude oil was produced during eleven months, which was 71,813 tons more than in 2011 (100.3%) with the above-the-plan production in the amount of 550,525 tons (102.4%). 23,372,676 tons of crude oil were delivered with the above-the-plan delivery amounting to 641,536 tons, reported the press-centre of Tatneft.

New Drilling
The new drilling penetration for 11 months of 2012 amounted to 601.8 thousand meters (565.7 thousand meters in 2011). Of this amount 442 thousand meters were penetrated for JSC TATNEFT (445.1thousand meters in 2011), including production drilling in the amount of 426.7 thousand meters and exploratory drilling amounting to 15.3 thousand meters. 50.1 thousand meters (39 thousand meters in 2011) were penetrated for subsidiaries of JSC TATNEFT, including production drilling in the amount of 36.5 thousand meters and exploratory drilling amounting to 13.6 thousand meters.

373 wells (372 wells in 2011) were constructed and delivered to the customers with 267 wells (278 wells in 2011) delivered to JSC TATNEFT, including 258 wells of production drilling and 9 wells of exploratory drilling. 27 wells were delivered to subsidiaries of JSC TATNEFT (29 wells in 2011), including production drilling of 22 wells and exploratory drilling of 5 wells.

Active Well Stock Drilling
The penetration of sidetracking and horizontal wellbores during eleven months of 2012 amounted to 49.9 thousand meters (40.4 thousand meters in 2011) including 24.8 thousand meters (19.7 thousand meters in 2011) were drilled for JSC TATNEFT.

92 wells (90 wells in 2011) were delivered to the customers. Of this amount 62 wells (54 wells in 2011) were delivered to JSC TATNEFT.

38 drilling crews have been performing well drilling operations since the beginning of 2012 and 11 drilling crews are engaged in drilling lateral and lateral horizontal wellbores. One drilling crew performs drilling to the bituminous deposits of Ashalchinskoye field for NGDU "Nurlatneft".

The penetration per crew in new drilling during 11 months of 2012 amounted to 15,693 m, while in 2011 the penetration per crew amounted to 15,823 m. 71.8 thousand meters were penetrated in new drilling outside the Republic of Tatarstan.

Repair of Wells
In November 2012 remedial servicing operations were performed in 750 wells (756 wells in November 2011) with a number of the wells subjected to remedial operations for eleven months amounting to 7,819 wells (7,658 wells during 11 months of 2011).

53 wells were repaired outside the Republic of Tatarstan, including 45 wells for "Tatneft-Samara" and 7 wells for "Ilekneft", 1 well for "Tatneft-Severny" (47 wells were repaired during 11 months of 2011, including 37 wells for "Tatneft-Samara", 5 wells for "KalmTatneft", 3 wells for "Tatneft-Severny" and 2 wells for "Ilekneft").

The workover operations were performed in 2,286 wells (234 wells in November) during eleven months of the current year, including production string sealing performed in 286 wells, shutting-off individual layers and recompletion in other intervals were performed in 162 wells, transfer of wells into different categories and wells completion for injection in 142 wells, liquidation of downhole complications and cleaning of production casing and bottomhole in 249 wells, installation of isolating packers and dual completion systems in 68 wells and physical liquidation and re-liquidation in 62 wells.

710 wells were worked over with application of coil tubing (66 wells in November), including 142 wells worked over through the annulus.

During eleven months of 2012 formation hydrofracking operations were performed in 357 wells (31 wells in November) versus 301 wells during 11 months of 2011. The cumulative incremental crude oil production resulting from application of this method amounted to 6 million 122 thousand tons.

37 small diameter wells were drilled and completed for JSC TATNEFT by the workover crews during eleven months of 2012. At present drilling of two slim holes is in progress for NGDU "Prikamneft" and one well for NGDU "Yamashneft".

Works on oil recovery enhancement were performed in 2,132 wells (171 wells in November), including chemical methods applied in 1,206 wells (101 wells in November).

During the eleven months period the incremental crude oil production resulting from application of crude oil recovery enhancement methods amounted to 5 million 394 thousand tons with application of chemical methods accounting for 2 million 422 thousand tons of the mentioned amount.

Bottomhole area treatment operations with application of JSC TATNEFT's technologies were performed in 2,985 wells during eleven months of 2012.

Production Performance of JSC "TANECO"
The TANECO complex of Refining and Petrochemical Plants processed 598.2 thousand tons of crude oil and yielded 594.6 thousand tons of oil products in November of the current year.