OREANDA-NEWS. April 08, 2010. The oil companies of the Republic of Tatarstan produced 2,751,658 tons accounting for 100% versus March of 2009. The oil companies produced 7,997,993 tons during the period of 3 months or 100.4% with regard to the similar period of 2009 (+ 32.5 thousand tons).

OAO TATNEFT produced 2,194,355 tons of crude oil in March, accounting for 100% versus March of the last year with the above-the-plan production amounting to 37,177 tons (101.7%).

The production of OAO TATNEFT amounted to 6,376,803 tons of crude oil during the period of three months, which is 28 thousand tons more than in 2009 (100.4%). The above-the-plan production amounted to 114 thousand tons of crude oil (101.8%).

The amount of 6,210,174 tons of crude oil was delivered with the above-the-plan delivery amounting to 103,164 tons.


Drilling

Conventional Drilling. The total penetration during a three months period of 2010 amounted to 178.3 thousand meters (165.6 thousand meters in 2009): 152.7 thousand meters drilled for OAO TATNEFT (151.3 thousand meters in 2009), including 147.4 thousand meters of production drilling and 5.3 thousand meters of exploratory drilling; 5.3 thousand meters were drilled for OAO TATNEFT subsidiary companies (7.7 thousand meters in 2009), including 4.1 thousand meters of production drilling and 1.2 thousand meters of exploratory drilling; 20.3 thousand meters (6.6 thousand meters in 2009) drilled for joint ventures and independent oil companies, including 18.8 thousand meters of production drilling and 1.5 thousand meters of exploratory drilling.

Totally 113 wells (80 wells in 2009) were constructed and handed over to customers and out of this amount: 73 wells (64 wells in 2009) were delivered to OAO TATNEFT with 72 production wells and 1 exploratory well; 3 wells (2 wells in 2009), including 3 production wells were drilled for OAO TATNEFT subsidiary companies; 37 wells (14 wells in 2009) were penetrated for the joint ventures and independent oil companies, including 35 production wells and 2 exploratory wells.


Drilling in the Old Well Stock

Total penetration of laterals and horizontal wellbores for three months of 2010 amounted to 7 thousand meters (7.4 thousand meters in 2009) including: 4.3 thousand meters were penetrated for OAO TATNEFT (4.5 thousand meters in 2009); 2.7 thousand meters (2.9 thousand meters in 2009) were drilled for joint ventures and independent oil companies.

14 wells were delivered to the customers (22 wells in 2009): 8 wells (17 wells in 2009) were delivered to OAO TATNEFT; and 6 wells (5 wells in 2009) were delivered to joint ventures and independent oil companies.

In 2010, 43 drilling crews performed drilling operations with application of traditional drilling techniques. 9 drilling crews were engaged in drilling laterals and horizontal wellbores with 5 of them drilling for NGDUs (Oil and Gas Production Boards) of OAO TATNEFT and 4 crews performed drilling for outside companies.

Penetration per drilling crew for 2010 amounted to 4,121 meters, while in 2009 the penetration per crew amounted to 3,416 meters.

6.7 thousand meters were penetrated outside the Republic of Tatarstan. 16.7 thousand meters were penetrated in horizontal wells and multi-branched downhole splitters.

Well Workover

806 well remedial operations were performed in March 2010 and 2,232 remedial operations were performed during the period of three months, which is 10.1% less than in 2009 (2,483 wells during 3 months of 2009).

16 well repair operations were performed in OOO Tatneft-Samara, including 9 well remedial operations and 7 workover operations.

The workover operations were performed at 633 wells during a three months period of 2010 (557 wells during 3 months of 2009) with 240 operations performed in March including: production string sealing in 104 shutting-off individual layers and recompletion in other intervals in 57 wells; transfer of the wells into different categories and wells completion for injection in 65 wells; failure liquidation and cleaning of the electrical cable and bottom hole areas in 66 wells.

197 wells were worked over with application of coil tubing (76 wells in March), including 50 wells worked over through the annulus.

Formation hydrofracking operations were performed at 53 wells (23 wells in March). The cumulative incremental recovery amounted to 3,195 thousand tons of oil.

6 slim holes were drilled and completed for OAO TATNEFT during 3 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 568 wells (208 wells in March), including chemical treatment methods applied at 322 wells (110 wells in March).

The incremental oil production resulting from application of the enhanced oil recovery methods amounted to 1,298 thousand tons with the chemical methods accounting for the production of 627 thousand tons.

Operations for preparation and delivery of acid compositions were carried out at 605 wells during three months of 2010 and the production of chemical products amounted to 9 thousand 316 tons for the amount of 194 million rubles.