OREANDA-NEWS. July 09, 2012.
Crude Oil Production
TATNEFT produced 2,132,023 tons of crude oil in June or 100.1 percent versus June 2011 (+1,684 tons). The Company produced 12,913,231 tons In six months, which was 56,106 tons more than in 2011 (100.4 percent) with the above-the-plan production accounting for 287,017 tons (102,3 percent). The delivery amounted to 12,741,420 tons of crude oil with the above-the-plan delivery amounting to 394,820 tons, reported the press-centre of Tatneft.   

TATNEFT Group of Companies produced 13,059,824 tons of crude oil with the above-the-plan production amounting to 291,881 tons (102.3 percent).

New Drilling
The new drilling penetration for 6 months of 2012 amounted to 323.1 thousand meters (288.6 thousand meters in 2011) with 238.4 thousand meters penetrated for TATNEFT (237.1 thousand meters in 2011), including production drilling in the amount of 235.2 thousand meters and exploratory drilling in the amount of 3.2 thousand meters; 30.4 thousand meters were drilled for the subsidiaries of TATNEFT(23.5 thousand meters in 2011), including production drilling in the amount of 23.1 thousand meters and exploratory drilling amounting to 7.3 thousand meters.

184 wells (193 wells in 2011) were constructed and delivered to the customers, including 129 wells delivered to TATNEFT (143 wells in 2011), with production drilling of 127 wells and exploratory drilling of 2 wells; 13 wells (18 wells in 2011) were delivered to the subsidiaries of TATNEFT, including 12 wells of production drilling and 1 exploratory well.

Active Well Stock Drilling
The total penetration of sidetracking and horizontal wellbores during six months of 2012 amounted to 23.4 thousand meters (21.3 thousand meters in 2011), including 11.4 thousand meters (12.5 thousand meters in 2011) drilled for TATNEFT.

41 wells (43 wells in 2011) were delivered to the customers, including 26 wells (31 wells in 2011) were delivered to TATNEFT.

38 drilling crews have been performing well drilling operations since the beginning of 2012 and 9 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 amounted to 8,330 meters for 6 months of 2012, while in 2011 the penetration per crew amounted to 8,380 meters. 44.4 thousand meters were penetrated in new drilling outside the Republic of Tatarstan.

Repair of wells
In June 2012 remedial servicing operations were performed in 761 wells (763 wells in June 2011) with a number of the wells subjected to remedial operations for six months amounting to 4,064 wells (3,812 wells for 6 months of 2011 года).

31 wells were repaired outside the Republic of Tatarstan, including 30 wells for "Tatneft-Samara", 1 well for "Ilekneft (18 wells were repaired during 6 months of 2011, including 16 wells for "Tatneft-Samara" and 2 wells for "Tatneft-Severny").

The workover operations were performed in 1,183 wells during 6 months of the current year (224 wells in June) including production string sealing performed in160 wells, shutting-off individual layers and recompletion in other intervals were performed in 86 wells, transfer of wells into different categories and wells completion for injection in 76 wells, liquidation of downhole complications and cleaning of production casing and bottomhole in 132 wells, installation of isolating packers and dual completion systems in 33 wells and physical liquidation in 29 wells.

387 wells were worked over with application of coil tubing (81 wells in June), including 69 wells worked over through the annulus.

Formation hydrofracking operations were performed in 191 wells including 33 wells in June (157 wells for six months of 2011). The cumulative incremental crude oil production resulting from application of this method amounted to 5 million 633 thousand tons.

20 small diameter wells were drilled and completed for TATNEFT by the workover crews during six months of 2012. At present drilling of one slim hole is in progress for each NGDU "Nurlatneft", NGDU "Jalilneft" and NGDU "Prikamneft".

Works on oil recovery enhancement were performed in 1,130 wells (263 wells in June) including chemical methods applied in 644 wells (143 wells in June).

The incremental crude oil production resulting from application of crude oil recovery enhancement methods amounted to 2 million 848 thousand tons with application of chemical methods accounting for the production of 1 million 292 thousand tons.

Bottomhole area treatment operations with application of TATNEFT's technologies were performed in 1,501 wells during 6 months of 2012.

Performance Figures of TANECO
The TANECO complex of Refining and Petrochemical Plants processed 622.7 thousand tons of oil and produced 619.3 thousand tons of oil products in June.