Leighton India has been awarded a US$17million contract for work on the G1-GS15 Shallow Water Project, an offshore field development by the Oil and Natural Gas Corporation (ONGC) of India.
Located at Krishna-Godavari Basin, 20 kilometres off Amalapuram coast in the Andhra Pradesh state of India, the G-1 field’s water depth is approximately 250 to 450 metres. The field operates through a sub-sea production system consisting of sub-sea production wells and production manifold. The wells are connected by dual sub-sea pipelines rising to the processing facilities on-shore.
GS15 is a shallow water field lying six kilometres off-shore which includes two platforms: The existing GS15-4 and the new GS15-1 platform are integrated in the overall field development project.
Leighton’s scope for the project includes the installation of Wye piece and 10-inch piggable full bore subsea valve in addition to the installation of topside extensions on GS15-4 topside. Both GS15-4 and GS15-1 will have a riser installed and tied to their topsides. Other work on the rigs include the hook-up and pre-commissioning of topsides, de-watering, pigging, hydro testing and onshore tie-in of subsea pipelines, testing of umbilical and post trenching and backfilling in near shore area.
Russell Waugh, Leighton India managing director, said: “ONGC holds the largest share of hydrocarbon acreages in India and contributes the majority of India’s oil and gas production.
“The G1-GS15 work marks the second existing project Leighton is undertaking for ONGC, alongside the $750 million Pipeline Replacement Project 2 currently being delivered in the Mumbai High Fields. The project builds on our oil and gas portfolio in the region and further strengthens our partnership with ONGC,” he added.
Leighton’s own purpose-built pipe-lay barge, Leighton Stealth, will deliver the project. Work is due to commence this month and is slated to be completed in March 2011.
