Crude Oil Production
The amount of 2,207,049 tons of crude oil was produced at JSC TATNEFT in October or 100.2% versus October 2011. The amount of 21,663,120 tons of crude oil was produced during ten months, which was 67,823 tons more than in 2011 (100.3%) with the above-the-plan production in the amount of 498,603 tons (102.4%). 21,287,456 tons of crude oil were delivered with the above-the-plan delivery amounting to 588,516 tons.
The production volume of TATNEFT Group of Companies amounted to 21,916,794 tons of crude oil with the above-the-plan production amounting to 508,235 tons (102.3%).
The new drilling penetration for 10 months of 2012 amounted to 554 thousand meters (518.8 thousand meters in 2011). Of this amount 409.4 thousand meters (408.2 thousand meters in 2011) were penetrated for JSC TATNEFT, including production drilling in the amount of 396.7 thousand meters and exploratory drilling amounting to 12.7 thousand meters. 46.7 thousand meters (36,7 thousand meters in 2011) were penetrated for subsidiaries of JSC TATNEFT, including production drilling in the amount of 35.8 thousand meters and exploratory drilling amounting to 10.9 thousand meters.
339 wells (340 wells in 2011) were constructed and delivered to the customers with 244 wells (256 wells in 2011) delivered to JSC TATNEFT, including 237 wells of production drilling and 7 wells of exploratory drilling. 25 wells were delivered to subsidiaries of JSC TATNEFT (29 wells in 2011), including production drilling of 21 wells and exploratory drilling of 4 wells.
Active Well Stock Drilling
The penetration of sidetracking and horizontal wellbores during ten months of 2012 amounted to 44.6 thousand meters (37.6 thousand meters in 2011). 25.3 thousand meters (18.3 thousand meters in 2011) were drilled for JSC TATNEFT.
82 wells (81 wells in 2011) were delivered to the customers. Of this amount 53 wells (51 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 10 months of 2012 amounted to 14,445 m, while in 2011 the penetration per crew amounted to 14,761 m. 65.8 thousand meters were penetrated in new drilling outside the Republic of Tatarstan.
Repair of Wells
In October 2012 remedial servicing operations were performed in 711 wells (743 wells in October 2011) with a number of the wells subjected to remedial operations for ten months amounting to 7,069 wells (6,902 wells during 10 months of 2011).
44 wells were repaired outside the Republic of Tatarstan, including 41 wells for OOO “Tatneft-Samara” and 3 wells for OAO "Ilekneft" (45 wells were repaired during 10 months of 2011, including 35 wells for OOO “Tatneft-Samara”, 5 wells for ZAO "KalmTatneft", 3 wells for OOO “Tatneft-Severny" and 2 wells for OAO "Ilekneft").
The workover operations were performed in 2,052 wells (191 wells in October) during ten months of the current year, including production string sealing performed in 261 wells, shutting-off individual layers and recompletion in other intervals were performed in 150 wells, transfer of wells into different categories and wells completion for injection in 132 wells, liquidation of downhole complications and cleaning of production casing and bottomhole in 225 wells, installation of isolating packers and dual completion systems in 61 wells and physical liquidation and re-liquidation in 49 wells.
676 wells were worked over with application of coil tubing (48 wells in October), including 125 wells worked over through the annulus.
During ten months of 2012 formation hydrofracking operations were performed in 326 wells (35 wells in October) versus 270 wells during 10 months of 2011. The cumulative incremental crude oil production resulting from application of this method amounted to 6 million 42 thousand tons.
31 small diameter wells were drilled and completed for JSC TATNEFT by the workover crews during ten 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 1,961 wells (188 wells in October), including chemical methods applied in 1,105 wells (110 wells in October).
During the ten months period the incremental crude oil production resulting from application of crude oil recovery enhancement methods amounted to 4 million 882 thousand tons with application of chemical methods accounting for 2 million 194 thousand tons of the mentioned amount.
Bottomhole area treatment operations with application of JSC TATNEFT’s technologies were performed in 2,705 wells during ten months of 2012.
Production Performance of JSC “TANECO”
The TANECO complex of Refining and Petrochemical Plants processed 641.5 thousand tons of crude oil and yielded 638.9 thousand tons of oil products in October of the current year.