Protection and Rational Management of Water Resources
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The following measures are implemented in OAO TATNEFT for the protection and rational management of water resources:
- application of water reuse and recycling systems;
- construction of production effluents and storm waters collection systems;
- construction of production effluents/storm and domestic wastewater treatment plants;
- providing closed mud circulating systems for drilling rigs, hydraulic isolation of earth mud pits;
- major repairs and replacement of crude oil and water pipelines, implementation of their corrosion protection;
- fitting the remedial servicing and well workover crews with specialized equipment to prevent liquid spills;
- monitoring the technical condition of producing wells with regard to possible failures and presence of behind the casing cross flows;
- sealing of wells production strings, bringing up the cement sheath top behind the surface casing and the production string;
- running in additional (intermediate) surface casings in the process of drilling;
- improving the durability of downhole equipment through application of protective coatings, specialized packers, protectors, corrosion inhibitors, cathodic well casing protection;
- construction of rain water utilization facilities at the water intake plants.
PHOTOS: Treatment of flushing water filters at the Kama River water intake facilities
In 2008 the Company produced 457.3 km of metal-plastic pipes and 638.7 polymer coated pipes, 6,505 tons of corrosion inhibitors, including 5,116 tons for own needs, casing pipes of 685 wells were equipped with cathode protection, 521 km of oil pipelines and 431 km of water pipelines were provided with sacrificial protection, 2,919 km of pipelines were tested, 207 km of oil pipelines and 147 km of water pipelines were capitally repaired for the purpose of stable and trouble-free operation of oil-field facilities and in order to increase their industrial and ecological safety.
PHOTOS: Crude oil recovery facilities
The volume of fresh water used for needs of OAO TATNEFT amounted to 30.2 million m3 in 2008, which is 6.1 million m3 less than in 2007.
600 fixed oil-trapping facilities, slick bars and bio-ponds are maintained in the operable condition in order to prevent surface pollution of the water bodies with oil.
As a result of measures taken for protection of water bodies, concentration of chlorides and oil products in the main rivers of the Company's area of operation does not exceed standard MAC levels.
There are over 500 springs used by population as potable water sources, which were cleaned, capped and architecturally improved in the territory of the Company's activity.
3,045 million rubles were spent for protection and rational use of water resources in 2008.
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