The onshore pipeline project is part of phase two of the Sakhalin II development and involves the engineering, procurement and construction of two 800km pipeline systems.
The pipelines will carry oil and gas from the Piltun-Astokhskoye and Lunskoye fields via an Onshore Processing Facility in the north of Sakhalin Island to an oil export terminal and liquefied natural gas plant in the south.
The consortium will also design, engineer and construct a number of pipeline block valve stations which will be installed at 30km intervals at seismic fault crossings, environmentally sensitive river crossings, and where the oil pipeline passes within 500m of settlements.
The oil pipeline system comprises 20" and 24" diameter lines with the gas pipeline system comprising 20" and 48" diameter lines.
The pipelines will cross over 1,100 rivers, streams, watercourses and swamps as well as several seismic faults, roads and railways in the 800km journey from the north to the south of the Island.
Pre-construction works and front-end environmental and geographical survey works have already been completed on the pipeline right-of-way. The oil pipelines are due to be completed by the end of 2005 and the gas pipelines by the end of 2006.
