Installation of Gas Supply Service in the Russian Regions

SGM Group of Companies is involved in the national «Program of installation of gas supply in the Russian regions» by JSC «Gazprom» from the very moment of its foundation.

The SGM Group of Companies: JSC «Krasnodargazstroy», JSC «Volgogaz» and LLC «SCC «Gazregion» — have many years of experience in the construction of gas distribution networks in different regions of Russia in challenging climatic and geological conditions and earthquake-prone areas.
The geography of construction activities of the SGM Group of Companies within the program of installation of gas supply spans all the territory of the RF. That is over 50 constituent entities of the RF in the Central, Southern, Northwestern, Far Eastern, Siberian, Urals, Volga and North Caucasian Federal Districts.
In 2011 the SGM Group of Companies constructed and put into operation over 2000 km of gas networks in more than 40 constituent entities of the RF. 516 km of gas pipelines were built in the Volgograd region, about 365 km of inter-town and intra-town gas pipelines were constructed in the Republic of Dagestan; Olympic facilities in Sochi received gas on the Krasnodar Territory.
The general vector of construction of gas distribution networks is shifting to the Far East and Eastern Siberia where the level of gas supply remains low. The SGM Group of Companies is directly involved in the construction of gas distribution networks in these remote regions.
In April 2012, the SGM Group of Companies completed construction of 34-kilometer long inter-settlement gas pipeline (main and reserve lines) from the GDS in Vladivostok to Russky Island. During this construction, a unique three-kilometer underwater crossing of Eastern Bosphorus Strait was completed; and there is nothing like it in the world. The pipeline provided power and heating to the capital of the Primorye Territory and the facilities of the APEC-2012 summit. Construction of the pipeline was carried out using the method of horizontal directional drilling, which allowed both to preserve a unique fish fauna of the region, as well as not to limit the transit of vessels through the strait.
In 2012, the SGM Group of Companies will lay over 2 600 km of gas networks in 33 constituent entities of the country under the Program of gasification of the Russian regions. Almost 1 thousand kilometers of inter-settlement gas pipelines out of them will be built in the Volgograd region, which will be almost entirely gasified by the beginning of 2014.
Natural gas coming through the gas pipelines constructed by the SGM Group of Companies is not only an improvement of the quality of life for an individual resident but also a possibility to create new production, develop small and medium size business.

Nevskoye underground gas storage facility

Customer: LLC "Gazprom invest Zapad" 

Nevskoye underground gas storage facility (UGSF), based in Krestetsky District of the Novgorod Region, is the biggest gas storage facility in the North-West of Russia. Resources of the facility allow to maintain volume of gas consumption in the Region during the most cold one hundred days in full compliance with obligations to OAO Gazprom.

SGM Group of Companies is continuing to work on expansion of Nevskoye UGSF (the 4th construction stage). Planned reconstruction of the existent compressor workshop №2 (CW-2) have to increase an active volume of gas by 4 million cubic meters per day in order to increase gas storage facility capacity up to 25 million cubic meters per day.
CW-2 will be equipped with three gas reciprocating gas-pumping units with the capacity of 5 MW each within the Project. This will allow to pump in additional 0.5 billion cubic meters of gas per year.
These works are planned to be completed in the 3d quarter of 2013.
Having constructed Nevskoye UGSF in the 1970s JSC "Lengazspetsstroy" during more than 30 years was working at the expansion and infrastructure development of UGSF. In 2011 the Company has completed 3d construction stage of UGSF expansion including construction of gathering station №6.

Construction of Surface Facilities

«Stroygazmontazh» is the largest company in Russia that performs construction of above ground facilities of oil and gas infrastructure, at the moment it realizes almost one half of all the construction projects related to compressor stations for the gas pipelines of the country and is building Nevskoye underground gas storage.

The construction of seven compressor stations is envisaged as part of the first and second phases of commissioning to ensure transportation of gas through the Gryazovets — Vyborg gas pipeline. LLC «SGM» is the general contractor in the construction of six of them: Gryazovetskaya, Volkhovskaya, Sheksninskaya, Babaevskaya, Pikalevskaya and Elizavetinskaya compressor stations. The compressor stations are equipped with modern high performance gas compressor units with a unit capacity of 16 and 25 MW. Putting in operation is all these stations is scheduled for this year, together with CS Nyuksenitskaya of the Northern parts of the Tyumen region — Torzhok gas pipeline.
LLC «SGM» also became the general contractor in the project of «Reconstruction of pilot-production compressor station at CS Gryazovetskaya, where the first Russian gas compressor unit GCU-32 Ladoga with a capacity of 32 MW was installed. It stands out among Russian permanent-type gas compressor units by high coefficient of efficiency (36%), low emission level and significant operational life.
At the Pochinki — Yaroslavl section of the Pochinki — Gryazovets gas pipeline LLC «STROYGAZMONTAZH» has built CS 04 Ivanovskaya and is completing construction of CS 03 Vyaznikovskaya.
«STROYGAZMONTAZH» is the general contractor for the construction of the main compressor station (MCS) Sakhalin for the Sakhalin — Khabarovsk — Vladivostok trunk gas pipeline as well as for construction of two bases of linear production administration in Komsomolsk-on-Amur and in Khabarovsk.
In 2012, LLC «SGM» begins construction of world’s most powerful compressor station Russkaya (I phase), as well as compressor station Korenovskaya (I phase), designed to ensure the gas supply to the South Stream gas pipeline.
CS Russkaya is located in the Krasnodar region near the city of Anapa. The compressor section of Russkaya will be equipped with seven GCU «Ladoga», 32 MW each. In the future, the second compressor section will be built at CS Russkaya, which will increase the capacity of the compressor station two-fold. Thus, its total capacity will reach 448 MW. While the compressor station Korenovskaya will be equipped with five GCU, 25 MW each. Time of completion is Quarter II, 2016.
At the same time in 2012–2013, the SGM Group of Companies continues to build the following compressor stations: Baydaratskaya and Inta at Bovanenkovo — Ukhta gas pipeline, Novonyuksenitskaya, Novoprivodinskaya, Novosindorskaya and Novoyubileynaya at the Ukhta — Torzhok gas pipeline MCS Sakhalin at the Sakhalin — Khabarovsk — Vladivostok gas pipeline.

Urengoy – Surgut condensate pipeline (II string)

Employer: ZAO “Yamalgazinvest"

Total length: 80 km
Pipe diameter: 720 mm
Pressure: 5.4 MPa

Urengoy — Surgut condensate trunk pipeline provides the supply of oil and gas condensate from Urengoy condensate treatment plant to Surgut condensate stabilization plant.

LLC «STROYGAZMONTAZH» carries out 2nd string of Urengoy — Surgut condensate pipeline construction that allows to increase its capacity from 9.5 to 12 million tons of fuel per year.
Scope of work includes the construction of 80-km-long linear condensate pipeline portion at 508 km — 588 km segment within Surgut District (KhMAO), moreover the construction of pig launching station area and two process connecting pipes.
The most part of the condensate pipeline is laying down across swampy and water-flooded area and for this reason the main scope of construction works is carried out in autumn and winter seasons when the ground is frozen.

South Stream gas pipeline

Employer: Peter Gaz LLC

Total gas pipeline length of the Black Sea section: over 900 km
Pipe diameter: 1420 mm
Design capacity: 63 billion m³ per year

South Stream transnational trunk gas pipeline is constructed to diversify natural gas export supply routes to the countries of Southern and Central Europe. It is assumed that offshore section of the route will pass through the bottom of the Black Sea from Russkaya compressor station, that is in the Anapa City area, to Bulgarian coast.

Offshore section of the South Stream gas pipeline starts from Russkaya main compressor station on the Russian territory that is planned to be the most high-powered one in the world. Works for its construction are assigned to LLC «SGM». Aggregate capacity of Russkaya compressor station (1st and 2nd shops) will be 448 MW. The station will be equipped with 14 GPUs Ladoga of 32 MW each, that will allow to provide the output pressure of the gas up to 28.45 MPa. As a result it’ll be possible to transfer the blue fuel for 900 km long without any additional technical units.
The expansion of Gas Transmission System is fulfilled to supply the adequate volume of gas into South Stream pipeline: that is the construction of 2 506.2 km long line pipe and 10 compressor stations with aggregated capacity of 1516 MW.
«STROYGAZMONTAZH» Company is responsible for 421 km gas pipeline construction and erection of Korenovskaya and Kubanskaya compressor stations.
LLC «SGM» sections of the route run through Voronezh Region, Rostov Region and Krasnodar Territory. And along with this 46 km long pipeline will be laid down by the constructors through rice paddy fields.

Gas pipeline Okhansk - Kirov

Customer: CJSC “Gazprom invest Yug"

Gas pipeline length (1, 2 start-up complexes): 84 km
Pipe diameter: 700 mm
Pressure: 5.5 MPa

«STROYGAZMONTAZH» carries out Okhansk — Kirov gas pipeline lateral reconstruction with its route passing through the area of Perm Territory, Udmurt Republic and Kirov Region.
The works are carrying out due to gas pipeline wearing and its low flow capacity. Okhansk — Kirov pipeline being the lateral to Nizhnyaya Tura – Perm – Gorky - Center gas trunkline was put into service in 1978.
At current moment LLC «SGM» carries out 84-km long gas pipeline reconstruction at two start-up complexes. The construction and installation works have been started in June, 2012 and will be completed in October, 2014. Okhansk — Kirov gas pipeline reconstruction enables to provide gas supply to the most distant areas of Kirov Region.

Gas pipeline Tokarevka - Zherdevka

Customer: CJSC “Gazprom invest Yug"

Gas pipeline length: 36.8 km
Pipe diameter: 325 mm
Pressure: 5.4 MPa
Construction completion: August 2014

Construction of Tokarevka  Zherdevka gas pipeline branch aims to improve gas supply to the populated centers, industrial and agricultural companies of Tambov Region.

In 2012 LLC "Stroygazmontazh" started the construction of Tokarevka  Zherdevka gas pipeline branch with its route passing through the territory of Tambov and Voronezh Region.
In the course of construction three underground crossings under Kleshnya, Savala and Talovaya Rivers have to be formed by HDD method (with total length of 774 m), another six crossings under motor roads and two crossings under railway lines have to be formed using pipe-jacking technique (length of pipes is 534 m in total).
Moreover to provide stable operation of trunk gas pipeline the reliable system of telemechanics and communications will be arranged (consisting of control cables with length of 43 km, one radio relay station, two container-type units of backup power supply, three unmanned repeater stations and five control stations of telemechanics and communications).

Gas pipeline Chusovoy – Berezniki – Solikamsk

Customer: CJSC "Gazprom invest Yug"

Gas pipeline length:360 km (1st and 2nd string)
Pipe diameter: 1020  mm
Pipe diameter (DN): 500 mm, 700 mm
Pressure: 5.4 МPa Construction completion: 4th quarter, 2014

 

“Stroygazmontazh” is in process of reconstruction of gas pipeline branches Chusovoy – Berezniki – Solikamsk to trunk gas pipeline N. Tura – Chusovoy – Perm (1st and 2nd start-up complex) that will allow to enhance reliability of gas supply to consumers of this region.

Gas pipeline branches Chusovoy — Berezniki — Solikamsk have been commissioned in 1970s — 80s. The reconstruction of these branches covers the construction of two new gas pipelines in parallel to currently operating strings.
In summer 2012 «Stroygazmontazh» started to work on a linear part of the first start-up complex. The pipe-welding base was installed in the area of Gremyachinsk town of Perm Territory with over 100 units of construction equipment and 260 people mobilized to the site. First start-up complex includes construction of 180 km of gas pipeline in parallel to the second string of currently operating gas pipeline Chusovoy — Berezniki — Solikamsk and construction of underground crossings under Vilva, Usva, Kosva and Yayva Rivers. The scheduled time limit for the completion of construction works within 1st start-up complex is 4th quarter, 2013.
The second start-up complex covers the construction of 180 km of new gas pipeline and removal of the 1st string of Chusovoy — Berezniki — Solikamsk gas pipeline.
It is planned to achieve the design capacity of Chusovoy — Berezniki — Solikamsk gas pipeline in 2014.

Gas pipeline OPF of Kirinsky GCF – Sakhalin GCS

Employer: LLC “Gazprom invest Vostok”

Gas pipeline length: 148 km
Pipe diameter: 1020  mm
Pressure: 9.8 MPa
Design capacity: 4.25 billion m³ per year

The trunk gas pipeline is constructed to connect onshore processing facilities (OPF) of Kirinsky gas condensate field (GCF) and the main compressor station Sakhalin, from which starts the Sakhalin — Khabarovsk — Vladivostok gas transportation system (GTS).

The length of the gas pipeline «OPF of Kirinsky GCF — Sakhalin GCS» including the reserve string is 148 km. The reserve string is being constructed at the most difficult section, where the pipeline route crosses the Tym River, an auto road and a railway, as well as an active tectonic fault.
The route of «OPF of Kirinsky GCF — Sakhalin GCS» gas pipeline crosses four zones of active tectonic faults, which was also taken into consideration during selection of a construction technology. Building of this pipeline envisages construction of more than 10 crossing of water obstacles, as well as two aerial crossing.
At the moment, the pipeline is being prepared to receive gas: it undergoes air tests, which will last until the end of August.
The time of the project implementation under the contract is from Quarter II of 2011 to Quarter III of 2012.
LLC «STROYGAZMONTAZH» has experience in implementing major gas network projects in the Far East. The company was the general contractor of JSC «Gazprom» for construction of Sakhalin — Khabarovsk — Vladivostok gas transportation system, where it was in charge of construction of 540 km out of 1350 km (the first phase commissioning). The first phase of Sakhalin — Khabarovsk — Vladivostok was put into operation in September 2011.

Gas pipeline Bovanenkovo – Ukhta

Employer: CJSC “Yamalgazinvest"

Gas pipeline length: 1100 km
Pipe diameter: 1420 mm
Pressure: 11.8 MPa
Design capacity: 140 billion m³ per year

Bovanenkovo — Ukhta trunk gas pipeline, the next generation of a gas transportation system (GTS), is being constructed to transport natural gas from Bovanenkovo field to the central regions of Russia and then to European customers. Implementation of this project is one of the priorities of commercial development of Yamal, whose GTS has to become, over time, the key element of the Unified Gas Supply System, providing transportation of gas in the amount of more than 300 bln. cubic meters per year from the peninsula fields.

Bovanenkovo — Ukhta trunk gas pipeline is noted for a unique combination of operational parameters: it was designed for operating pressure of 11.8 MPa from high-strength pipes of the next generation with a diameter of 1 420 mm and wall thickness of up to 33.4 mm. These innovative technological solutions allowed increasing the pipeline capacity more than twofold.
LLC «STROYGAZMONTAZH» is responsible for the construction in Yamal of seven sections of the 2nd string of the Bovanenkovo with the total length of approximately 200 km.
During the construction of this route, which crosses the peninsula and runs to the Baydaratskaya bay, a crossing was made underneath the Mordy-Yaha River. The main and the reserve strings of the gas pipeline, with the length of 400 m each, were laid by the pull-in method.
Construction is carried out in the severe climatic conditions of the Far North with almost complete lack of infrastructure and a significant distance from procurement bases. Sections of the trunk gas pipeline constructed by LLC «STROYGAZMONTAZH» cross the territory of continuous distribution of permafrost grounds.
Completion of works for construction of the 2nd string of GTS Bovanenkovo — Ukhta is scheduled for 2015.

Gas pipeline Saratov – Gorkij

Gas pipeline length: 206.8 km
Pipe diameter: 720 mm
Pressure: 5.4 MPa
Design capacity: 81.5 billion m³ per year
Construction completion: 2011


The SGM Group of Companies has completed the construction and installation works at the facilities of the first phase of commissioning of the upgraded Saratov – Gorky gas pipeline at the section Pochinki – Saransk.

The Saratov — Gorky gas pipeline was constructed to replace the old gas pipeline, which was built in 1960 and reached a high degree of wear out. The gas pipeline was built by order of CJSC «Gazprom invest Yug» under the Integrated Program for Reconstruction and technical modernization of gas transportation facilities of OJSC «Gazprom».

An underground crossing across the Rudnya River with the length of 300 m was built in the course of construction.

Gas pipeline Ukhta – Torzhok

Employer: CJSC “Yamalgazinvest"

Gas pipeline length: 972 km
Pipe diameter: 1420 mm
Pressure: 9.8 MPa
Design capacity: 81.5 billion m³ per year
Construction completion: December 2012

In 2012 LLC «STROYGAZMONTAZH» has completed the construction of the sixth string of
Ukhta-Torzhok trunk gas pipeline.
The sixth string of Ukhta-Torzhok trunk gas pipeline was constructed to increase the capacity of Ukhta-Torzhok system of trunk gas pipelines when transporting gas from Bovanenkovo field.
LLC «STROYGAZMONTAZH» was responsible for the construction of 483 km of gas pipeline, the total length of which is 972 km. The diameter of the pipe is 1420 mm. The pressure is 9.8 MPa. The design capacity is 81.5 billion cubic meters of gas per year.
Ukhta-Torzhok gas pipeline has passed through the area of Vologodsk and Arkhangelsk Regions.
The route of the 6th string of the gas pipeline has crossed Malaya Severnaya Dvina, Libenga and Sukhona Rivers. These kilometer crossings were made using horizontal directional drilling method. The longest crossing (that is through Malaya Severnaya Dvina) is 1348 meters.
During the construction of the sixth string of the gas pipeline the pipes with the diameter of 1420 mm were used, being designed for the increased (120 kg/sq cm) working pressure comparing with the pressure achieved on running gas pipelines.
The construction of Ukhta-Torzhok trunk gas pipeline includes also the construction of four compressor stations: Novosindorskaya, Novoprivodinskaya, Novonuksenitskaya and Novoyubileynaya.

Gas pipeline Sakhalin ­– Khabarovsk ­– Vladivostok

 

Employer: LLC “PeterGaz”

Gas pipeline length: 1830 km
Length of first complex: 1350 km
Full design capacity: 37 billion m³ per year
Design capacity of first complex: 6 billion m³ per year

Sakhalin — Khabarovsk — Vladivostok gas transportation system is being constructed with the aim to implement «Program of establishing a unified system of production, transportation and supply of gas considering possible export of gas to the markets of China and other countries of the
Asia-Pacific region» adopted by the Ministry of Industry and Energy of the RF.

The gas transmission network Sakhalin — Khabarovsk — Vladivostok allowed supplying gas to consumers of Khabarovsk and Primorye Territories, Sakhalin Region, including facilities of the summit meeting of Asia-Pacific Economic Cooperation — 2012. Full development of the system will give the opportunity to transport up to 35–37 bln. m3 of gas annually. The main resource base for the gas transmission network will be the fields of the Sakhalin continental shelf.
The total length of the gas transportation system Sakhalin — Khabarovsk — Vladivostok is 1830 km. The first phase of commissioning of the gas pipeline with the capacity of 6 bln. m3 of gas per year and the length of 1350 km was brought into operation in September 2011. LLC «STROYGAZMONTAZH» was the general contractor of LLC «Gazprom invest Vostok» for the construction of the linear part of the gas pipeline (540 km), as well as for building the Sakhalin head compressor station.
The complexity of the project was related to the fact, that the sections of the SGM Group of Companies are located in three different regions: in Sakhalin, Khabarovsk and Primorye Territories.
Almost a half of the pipeline route — about 240 km (in the areas of construction of LLC «SGM») — was laid in the earthquake-prone areas. The system of geotechnical monitoring was installed there, which allows to continuously monitor ground and pipe movements.
In the Khabarovsk Territory almost one third of the trunk gas pipeline crossed rocky grounds, therefore during construction it was necessary to perform drilling and blasting works.
128 km of the gas pipeline were installed in the mountainous terrain of Primorye Territory, being characterized by significant altitude differences. In Primorye and Khabarovsk Territories the route of the gas pipeline crosses the zones of active tectonic fractures, what was also taken into account during the selection of construction technologies.

Gas pipeline Dzhubga – Lazarevskoe – Sochi

Employer: LLC “PeterGaz”

Gas pipeline length: 177 km
On the seabed: 159.5 km
On the surface: 17.5 km
Pipe diameter: 530 mm
Pressure: 9.8 MPa
Design capacity: 3.8 billion m³ per year

The construction of the Dzhubga – Lazarevskoye – Sochi trunk gas pipeline has become one of the main projects of the SGM Group of Companies.
The gas pipeline has been built and commissioned in June 2011.

The Dzhubga — Lazarevskoye — Sochi gas pipeline is a part of the Olympic facilities construction program and development of Sochi as a

year-round resort, approved by the RF government. The gas pipeline will provide a reliable energy supply to Sochi and supply gas to the Olympic facilities under construction, will give momentum to the development of gasification of the Tuapse region, and will decrease the short supply of energy to the Black Sea coast of the Caucasus.

The gas pipeline length amounts to 177 km, 159.5 km out of which are installed on the seabed of the Black Sea, and 17.5 km are onshore. The pipe diameter is 530 mm. The pressure is 9.8 MPa. The design capacity is 3.8 bln. m3 per year.

The onshore and offshore gas pipeline sections are connected by five crossings, built by the horizontal directional drilling method (HDD), which enabled to minimize the negative impact on the ecological system of the Krasnodar region. Construction of all the crossings was performed in extremely complicated soils with fractures and hidden cavities in the conditions of significant altitude differences.

Four gas distribution stations were built on the gas pipeline: «Dzhubga — 1» and «Dzhubga — 2», «Novomikhailovskaya» and «Tuapse» and several engineering facilities.

Increased attention was paid to conformity with the ecological requirements and execution of environment-oriented activities, state-of-the-art and the most advanced technologies were applied during construction of the Dzhubga — Lazarevskoye — Sochi gas pipeline.

LLC «SGM» was named the winner of the competition «100 best companies of Russia. Environment and Environmental management." in the nomination «Technologies of the year» for the application of the HDD method during the installation of the Dzhubga — Lazarevskoye — Sochi gas pipeline. The competition expert committee considered the project to be the best implementation of available technologies to decrease the negative impact on the environment.

Gas pipeline Pochinki ­– Gryazovets

 

Employer: CJSC “Yamalgazinvest"

Gas pipeline length: 650 km
Pipe diameter: 1420 mm
Pressure: 7.4 MPa
Design capacity: 36 billion m³ per year

The Pochinki – Gryazovets trunk gas pipeline will ensure delivery of supplementary volumes of gas to the Northwestern Region of Russia, including the Nord Stream gas pipeline.

On the next stage together with the arrival of gas from Yamal gas fields the gas pipeline will start to operate in a reverse mode, the gas flow will be redirected to the Central region. The route of the Pochinki — Gryazovets gas pipeline will go across the territory of Nizhny Novgorod region, Vladimir, Ivanov, Yaroslavl and Vologda regions. The employer of the project is CJSC «Yamalgazinvest».

The total length of the Pochinki — Gryazovets gas pipeline will amount to 650 km, pipe diameter is 1420 mm, operating pressure is 7.4 MPa. Its design capacity is up to 36 bln. m3 of gas per year.

In 2011, LLC «SGM» commissioned 13 sections of the Pochinki — Gryazovets trunk gas pipeline with a total length of more than 500 km.
Works for the construction of Ivanovskaya and Vyaznikovskaya compressor stations are finished on the Pochinki — Gryazovets gas pipeline. In addition, a gas metering station, junction points of CS Yaroslavskaya and Vyaznikovskaya, 10 gas reduction spools and other facilities were built and put into operation.
LLC «Stroygasmontazh» has completed the installation of the main and reserve strings of the Pochinki — Gryazovets gas pipeline across the Volga. The underwater crossing was made by the ordinary trenching method, by pulling the pipeline through a developed underwater trench. The length of the main string amounted to 1099 m, and the reserve string is 1072 m.

Gas pipeline Gryazovets – Vyborg

Employer: LLC “Gazprom invest Zapad”

Gas pipeline length: 917 km
Pipe diameter: 1400 mm
Pressure: 9.8 MPa
Design capacity: 55 billion m³ per year

 The Gryazovets — Vyborg trunk gas pipeline is being constructed by the SGM Group of Companies by order of LLC «Gazprom invest Zapad». The gas pipeline is designated for supply of gas to the Nord Stream gas pipeline and to the consumers of the Northwestern Region of Russia.

In 2010, LLC «STROYGAZMONTAZH» completed construction of 300 km of linear part of the first string of Gryazovets — Vyborg gas pipeline and in January 2011 proceeded with the construction of yet another 8 sections of its second string with a total length of 700 km.
The longest part of the gas pipeline route, which crosses the territory of the Leningrad and Vologda regions, runs through swamps. At the most troublesome terrains with blue clay, the Company’s specialists used new Russian technology for stabilization of soil.
The construction was to be executed in rocks as well, and that is why explosive works were applied. Constructors had to solve a lot of complex technical tasks, in particular, the crossings under the Neva and the Saimaa channel were performed in complicated geological conditions with the application of the micro tunneling method.
The project envisages construction of seven compressor stations on the Gryazovets — Vyborg gas pipeline. LLC «STROYGAZMONTAZH» is the general contractor for the construction of six of them: Gryazovetskaya, Volkhovskaya, Sheksninskaya, Babaevskaya, Pikalevskaya, and Elizavetinskaya.
Commercial supply of gas to consumers through the first string has already begun; upon launching of the string, the Unified Gas Supply System and the European gas transportation system were directly connected for the first time. It was decided to complete the second string ahead of schedule — as yearly as in the Fall of this year.
It is planned that the Gryazovets — Vyborg gas pipeline will reach its design capacity by the end of 2012.