GSP announces the completion and commissioning of the Dzubga-Lazarevskoe-Sochi offshore gas pipeline project for Gazprom

July 5, 2011

GSP has become in 2009 the contractor and project manager for the offshore services package includding the pipeline installation along the Russian continental shelf of the Black Sea, between Dzhubga-Lazarevskoe-Sochi as well as for the pipeline tie-in with the  Russia – Turkey inter continental pipeline in Gorsky, Tuapse region. The total length of the gas pipeline is 177 kilometers, out of which 159.5 kilometers represent the offshore section. The pipeline route runs on the Black Sea bottom following the coastline (approximately 4.5 kilometers away from the coast) to the Kudepsta gas distribution station near Sochi. The 24 inches gas pipeline will have an annual throughput capacity of approx 3.8 billion cubic meters.

GSP, the contractor of the offshore works, installed the submarine pipelines (159.5 km), including welding, nondestructive testing, inspection, pipe transport, installation of five shore approaches in Dzhubga, Novomikhailovskoye, Tuapse (two onshore pipeline approaches) and Kudepsta, pipeline tie-ins, ROV operations, surveys, trenching and pipeline hydro-testing. The contract has been signed in 2009, the offshore operations started in early April 2010 and in June 2011 were completed the last works including the offshore pressure testing, dewatering, drying and trenching works.

GSP has provided the operational management of an extensive offshore fleet  including two pipelay technical vessels, GSP Bigfoot 1 and C Master, a IMR & Survey vessel, GSP Prince, as well anchor handling support vessels, offshore supply and crew transport, such as GSP Queen, GSP Vega, GSP Phoenix, to name only a few. GSP supplied the Triton XLR, Navajo and Mohican ROVs and the technicians and operators for the subsea survey as well as the 300 msw rated saturation diving system and divers for the subsea works.