Preparations for feeding gas into Nord Stream completed
Today in Saint Petersburg Alexander Ananenkov, Deputy Chairman of the Gazprom Management Committee held a meeting dedicated to engineering and construction of the Ukhta – Torzhok, Pochinki – Gryazovets, Gryazovets – Vyborg, SRTO – Torzhok gas pipelines and main compressor stations in Northwestern Russia as well as the expansion of the Gryazovets gas hub.
Taking part in the meeting were Yaroslav Golko, Member of the Management Committee, Head of the Investment and Construction Department, heads and experts from Gazprom's specialized structural units and subsidiaries as well as engineering and contracting companies.
The meeting participants noted a high pace of activities on the expansion of gas transmission capacities in Northwestern Russia.
Linepipe loopings construction is carried on at the Gryazovets – Vyborg gas pipeline. Construction and installation activities are close to completion at the Volkhovskaya CS, the gas pumping equipment is being prepared for commissioning. Startup operations are underway at the Elizavetinskaya and Babaevskaya CSs.
346.8 kilometers of the Pochinki – Gryazovets linear part have been welded and trenched since early 2011. Taking into account 300 kilometers built last year, it is almost 100 per cent of the gas pipeline length. Testing of 70 per cent of block valve stations has been completed, hydraulic testing of constructed gas pipeline sections is underway. Construction and installation activities are carried on at the Vyaznikovskaya CS. The Ivanovskaya and Lukoyanovskaya CSs are being commissioned.
Construction of the Sindorskaya, Urdomskaya, and Nyuksenitskaya CSs that will make part of the SRTO – Torzhok gas pipeline is underway.
Previously, Gazprom's expert group headed by Alexander Ananenkov visited the Portovaya CS construction site located on the Baltic Sea coast near Vyborg, Leningrad Oblast.
Currently, testing “under load” of the gas treatment unit to feed gas into Nord Stream is completed. The feeding is scheduled for this September and constitutes a necessary process stage before commissioning of the gas treatment and gas compressor units that will provide for gas supply to consumers.
Installation of the gas treatment and gas compressor units with the total capacity of 210 MW has been finished.
Based on the meeting results, specialized structural units, subsidiaries and contracting agencies were given the tasks aimed at timely implementation of the projects in Northwestern Russia.
Gazprom is taking large-scale efforts to develop the Russian gas transmission system (GTS) and diversifying gas export routes in parallel with building up gas production capacities. In this respect, northwestward expansion of the GTS is of a particular significance. It is required for secure gas transmission from the Yamal Peninsula where a new gas production center is emerging as well as for timely delivery of natural gas into the Nord Stream offshore gas pipeline and for increasing the reliability of gas supplies to consumers in Northwestern Russia.
The work is currently being performed to expand the Gryazovets gas hub which is a crucial component of the Northern gas transmission corridor. The Gryazovets hub will convey gas to the Nord Stream offshore gas pipeline starting from September 2011. The Gryazovetskaya CS is a key facility of the Gryazovets hub. The work is underway to increase the station capacity to 389 MW.
Nord Stream will be fed from the Gryazovets – Vyborg gas pipeline. Its length is 900 kilometers and nominal capacity – 55 billion cubic meters of gas. The gas pipeline runs across the Vologda and the Leningrad Oblasts. Domestically manufactured pipes and new generation shutoff valves are used for the linepipe. The pipeline crossings through large watercourses are built using the horizontal directional drilling and microtunneling techniques which allow avoiding an impact on river ecosystems during the gas pipeline construction and operation process. The gas pipeline will be commissioned in a phased manner starting from 2011. By now, the linear part of the gas pipeline (900 kilometers) has been built, construction of loopings with the total length of 700 kilometers is underway. The gas pipeline is to achieve the nominal capacity by late 2012.
The Pochinki – Gryazovets gas pipeline construction is oriented at raising the UGSS reliability and flexibility in the Northwestern and Central regions. Initially, the pipeline will secure additional gas supplies to the Northwestern region and, inter alia, convey gas to Nord Stream. Further on, with the first natural gas deliveries from Yamal, the pipeline will be switched to reverse flow and gas will be rerouted to the Central region.
The Pochinki – Gryazovets gas pipeline will run across the Nizhny Novgorod, Vladimir, Ivanovo, Yaroslavl and Vologda Oblasts. The 1,420-millimeter pipeline will stretch approximately 650 kilometers and operate at the working pressure of 75 atmospheres. Its full throughput will reach 36 billion cubic meters a year. The pipeline construction began in September 2007.
The Ukhta – Torzhok gas trunkline system is designed for the Yamal gas delivery to the Central region. It will be 1,300 kilometers long with the annual throughput of 90 billion cubic meters and the working pressure of 100 atmospheres.
The Portovaya CS will ensure gas transmission via Nord Stream. It will be a unique gas transmission facility in terms of the aggregate capacity (366 MW), the working pressure (220 atmospheres), the gas transmission distance (1,200 kilometers) and the daily gas dehydration volume (170 million cubic meters). When constructing the station, Gazprom utilizes novel equipment and state-of-the-art technologies.