Tatneft Underscores 10-Month Oil Production Operations

Oil Production

The production of the oil companies in the Republic of Tatarstan amounted to 2,772,453 tons of crude oil in October, which made 103.7% versus the month of October 2008. The crude oil production amounted to 27,073,802 tons for the period of ten months or 100.1% versus the same period of the last year.

OAO TATNEFT produced 2,199,050 tons of crude oil in October, which made 104.2% versus the month of October of the last year with the above-the-plan production amounting to 41,104 tons (101.9%). The amount of 2,163,150 tons of oil was delivered to the trunk oil pipeline system with the above-the-plan delivery volume amounting to 64,670 tons.

OAO TATNEFT produced 21,527,925 tons of crude oil during the ten months period.

The above-the-plan production amounted to 367,067 tons (101.7%).

The amount of 21,380,750 tons of oil was delivered with the above-the-plan delivery amounting to 762,000 tons.

Drilling

The total penetration during the period of 10 months of 2009, taking into account the operation of OOO TNG-Lenburneft, amounted to 463 thousand meters (687 thousand meters during the period of 10 months in 2008) including 370 thousand meters for OAO TATNEFT (425 thousand meters during the period of 10 months in 2008) with production drilling amounting to 349 thousand meters and exploratory drilling accounting for 21 thousand meters; 32 thousand meters were penetrated for the subsidiary companies of OAO TATNEFT (37 thousand meters during the period of 10 months in 2008), including 9 thousand meters of production drilling and 23 thousand meters of exploratory drilling; 61 thousand meters were drilled for joint ventures and independent oil companies (225 thousand meters during the period of 10 months in 2008), including 54 thousand meters of production drilling and 7 thousand meters of exploratory drilling.

In total, 307 wells were constructed and handed over to customers (437 wells during the period of 10 months in 2008), including: 247 wells for OAO TATNEFT (270 wells during the period of 10 months in 2008), including 226 production wells and 21 exploratory wells; 17 wells were built for the subsidiary companies of OAO TATNEFT (17 wells during the period of 10 months in 2008), including 6 production wells and 11 exploratory wells; 43 wells were constructed for joint ventures and independent oil companies (150 wells during the period of 10 months in 2008) including 35 production wells and 8 exploratory wells.

35 crews of OOO Bureniye Company performed well drilling operations with application of traditional drilling techniques during the period of ten months. Besides, one drilling crew performed works on construction of wells drilled in the underbalanced pressure mode for NGDU Bavlyneft. They penetrated 432,091 meters and handed over to customers 288 wells (641,156 meters and 403 wells in 2008), including 343,719 meters and 230 wells for OAO TATNEFT (406,187 meters and 249 wells in 2008). Production drilling for OAO TATNEFT amounted to 322,909 meters and 209 wells, while exploratory drilling amounted to 20,810 meters and 21 wells. Six drilling crews operated in the territory of the Samara District. 45 thousand meters were penetrated outside the Republic of Tatarstan. 67.2 thousand meters were penetrated in horizontal wells and multilateral downhole splitters.

Penetration per one drilling crew amounted to 12 thousand meters during the period of 10 months, while the penetration per crew amounted to 13 thousand meters for the corresponding period of 2008. Drilling operations of OOO Lenburneft with application of traditional drilling techniques were performed by 4 drilling crews. One crew was drilling a well for OAO Krasnoyarskgazprom Company in the Krasnoyarsk Area, while two crews were drilling wells for NGDU Leninogorskneft and one drilling crew performed drilling operations to the bituminous deposits at Ashalchinskoye field of NGDU Nurlatneft. 31,076 meters were penetrated and 19 wells were handed over to customers during the period of 10 months of 2009, including 26,276 meters drilled and 17 wells handed over to OAO TATNEFT (the penetration rate amounted to 45,485 meters for the corresponding period of 2008, including 18 832 meters drilled and 21 wells handed over to OAO TATNEFT). 10 crews were engaged in drilling lateral and horizontal wellbores with 7 of them drilling horizontals and laterals for NGDUs of OAO TATNEFT and 3 crews performed drilling for outside companies in the territory of the Orenburg District. 25,213 meters were drilled and 69 wells were handed over to customers during the period of 10 months, including 16,444 meters drilled and 51 wells handed over to OAO TATNEFT (18,082 meters penetrated and 58 wells handed over during the corresponding period of 2008).

Workovers

815 well remedial operations were performed in October 2009 and 8,065 well remedial operations were performed during 10 months of 2009. 36 well remedial operations were performed in ZAO Tatneft-Samara (8 wells in October).

Well workover operations were performed at 1,721 wells during 10 months of 2009 (161 operations in October), including production string sealing in 259 wells; shutting-off individual layers and recompletion in other intervals of 298 wells; transfer of the wells into different categories and wells completion for injection in 118 wells; failure liquidation and cleaning of the electrical cable and the bottom hole areas in 288 wells; physical well abandonment and re-abandonment in 37 wells. 462 wells were worked over with application of coil tubing (39 wells in October), including 130 wells worked over through the annulus.

Hydrofracking operations were performed at 106 wells (8 wells in October) with cumulative incremental oil production amounting to 2,927 thousand tons of crude oil.

16 slim holes were drilled and completed for OAO TATNEFT. 26 slim holes were also drilled and completed for small oil companies. Five wells are in the process of drilling for OOO Bytex at present, while one well is in the process of completion.

Works on oil recovery enhancement were performed at 1,463 wells (124 wells in October), including chemical treatment methods applied at 844 wells (86 wells in October).

The incremental oil production resulting from application of the enhanced oil recovery methods amounted to 4,291 thousand tons with chemical methods accounting for the production of 2,053 thousand tons of oil.

Operations for preparation and delivery of acid compositions were carried out at 1,629 wells during the period of ten months of 2009 and the production of chemical products amounted to 25 thousand 475 tons for the amount of 559 million rubles.
 

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