OREANDA-NEWS. August 17, 2011. In the framework of a large-scale effort to improve the efficiency and reliability of the oilfield equipment TATNEFT implements a number of promising projects, including successful implementation of a program to protect the production casing of injection wells from the effects of high pressure and corrosive impact of injected water. The estimated economic effect of this program is approaching the amount of 1 billion rubles, reported the press-centre of TATNEFT.

For the purpose of corrosion protection of the oilfield equipment the Company uses corrosion-resisting tubing with gas-tight coupling sleeves in injection wells.

Coverage of the existing injectors stock operating with effluent water with such tubing is 78.2%.

The corrosion-resisting tubing is installed in combination with highly reliable packers M1-X and anti-corrosive fluid injection, which allows for even more efficient protection of the wells' production casing against high pressure and corrosion. M1-X packers have been installed in 2,785 injection wells of TATNEFT since the beginning of their introduction.