State-owned Oil & Natural Gas Corp. has spudded the first of 34 subsea wells planned in its $5-billion KG-DWN-98/2 deepwater oil and gas development (OGJ Online, Mar. 28, 2016).
The Vantage Drilling International Platinum Explorer drillship is drilling the KDG-A well to a target depth of 2,346 m in 518 m of water off eastern India.
In addition to the drilling, the project includes 425 km of 6-22-in. pipeline, 150 km of control umbilicals, an offshore process platform able to process 6.5 million standard cu m/day of gas, and a floating production, storage, and offloading vessel to process oil and gas.
Water depths are 300-1,400 m. The FPSO will be in 413 m of water.
ONGC expects the project to produce 78,000 b/d of oil and 15 million standard cu m/day of natural gas at peak. Flow will start in 2019 for gas and in 2020 for oil.
Of the planned wells, 15 will produce oil, 8 will produce gas, and 11 will inject water.
Cluster 2A of the project will have peak production rates of 78,000 b/d of oil and 3 million standard cu m/day of associated gas.
Cluster 2B will produce 12.25 million standard cu m/day of free gas at peak.
ONGC expects production from the project to total 25 million tonnes of oil and 45 billion cu m of gas.