OREANDA-NEWS  On 11 June TATNEFT-Group published figures demonstrating results of operations in May and from the Beginning of the Year.

Oil production

The production of the oil companies in the Republic of Tatarstan amounted to 2,759,344 in May tons of crude oil with the production volume for the five month period amounting to 13,386,580 tons.

TATNEFT produced 2,194,338 tons of crude oil in May. TATNEFT production for the period of five month amounted to 10,665,295 tons of crude oil with the above-the-plan production amounting to 174,098 tons of crude oil (101.7% to the plan). All NGDUs fulfilled the plans of crude oil production.

The amount of 10,695,390 tons of oil was delivered with the above-the-plan production amounting to 477,070 tons.

Drilling

The total penetration including penetration by TNG-Lenburneft Company amounted to 252 thousand meters: 227 thousand meters for TATNEFT, including 209 thousand meters of production drilling and 18 thousand meters of exploratory drilling; 14 thousand meters were drilled for the TATNEFT subsidiary companies, including 4 thousand meters of production drilling and 10 thousand meters of exploratory drilling; 11 thousand meters were drilled for the joint ventures and independent oil companies, including 8 thousand meters of production drilling and 3 thousand meters of exploratory drilling.

142 wells were constructed and handed over to customers and out of this amount 122 wells were constructed for Tatneft, including 114 production wells with a number of exploratory wells amounting to 8; 3 wells were drilled for the TATNEFT subsidiary companies with 2 production wells and 1 exploratory well penetrated; 17 wells for were constructed for the joint ventures and independent oil companies, including 11, production wells and 6 exploratory wells.

39 drilling crews of Bureniye performed drilling operations with application of traditional drilling techniques during the period of 5 months. Total penetration amounted to 234,999 meters and 134 wells were handed over to the customers. In addition to this one drilling crew performed works on construction of one underbalanced drilled well for HGDU Bavlyneft. 7 drilling crews operated in the territory of the Samara District. 17 thousand meters were drilled outside the Republic of Tatarstan. 38.3 thousand meters were penetrated in horizontal wells and multi-branched downhole splitters.

The penetration per one drilling crew amounted to 6,019 meters during the period of 5 months.

4 drilling crews of TNG Lenburneft Company performed drilling with application of conventional drilling techniques. 17,122 meters were penetrated during the period of 5 months with 13,017 meters drilled and 6 wells handed over to NGDU Leninogorskneft. One drilling crew was drilling a well for OAO " Krasnoyarskgazprom" in the Krasnoyarsk area, two drilling crews performed drilling operations for NGDU Leninogorskneft and one crew performed drilling for Bitex Company in the Orenburg District. Additionally one drilling crew was engaged in drilling wells to the bituminous deposits at Ashalchinskoye bituminous field of NGDU Nurlatneft. 11 crews were engaged in performing side tracking jobs and drilling lateral horizontal wellbores with 7 of them drilling horizontals and laterals for NGDUs (Oil and Gas Production Boards) of OAO TATNEFT and 4 crews performed drilling for outside companies in the territory of the Orenburg District.

12,284 meters were drilled and 34 wells were handed over to the customers during the period of five months including 6,907 meters and 24 wells for OAO TATNEFT скважины.


Well Workover and EOR

655 well remedial operations were performed in May 2009 and 3,684 well remedial operations were performed during the period of five months.

The workover operations were performed at 835 wells during the period of 5 months (130 wells in May), including production string sealing in 111 wells; shutting-off individual layers and recompletion in other intervals in 186 wells; transfer of the wells into different categories and wells completion for injection in 58 wells; failure liquidation and cleaning of the electrical cable and bottom hole areas in 120 wells; physical well abandonment and re-abandonment in 7 wells.

199 wells were worked over with application of coil tubing (33 wells in May), including 82 wells worked over through the annulus.

Formation hydrofracking operations were performed at 59 wells (14 wells in May). The cumulative incremental recovery amounted to 2,669 thousand tons.

17 slim holes were drilled and completed for OAO TATNEFT and small independent oil companies. Drilling of one well was completed both for NGDU Almetyevneft and NGDU Leninogorskneft. The well for NGDU Leninogorskneft was drilled at deposit 301-303 in the framework of pilot operations. Construction of two wells was started for NGDU Almetyevneft and three drilling crews perform drilling of three wells for OOO Bitex.

Works on oil recovery enhancement were performed at 656 wells (137 wells in May) including chemical treatment methods applied at 378 wells (89 wells in May).

The incremental oil production resulting from application of the enhanced oil recovery methods amounted to 2,135 thousand tons with the chemical methods accounting for the production of 1,025 thousand tons of crude oil.

664 operations for acid compositions preparation and delivery were performed at the wells during the period of five months of 2009 while the yield of the chemicals production amounted to 11 thousand 066 tons totaling the amount of 260 million rubles.