India’s state-owned Oil and Natural Gas (ONGC) is to invest $5.07bn to develop fields in Cluster 2 of the deepwater NELP Block KG-DWN-98/2.

Cluster 2A has estimated in-place reserves of 94.26 million tonnes of crude oil and 21.75 billion cubic metres (BCM) of associated gas and Cluster 2B has estimated reserves of 51.98BCM free gas.

Production from Cluster 2A oil fields is expected at a peak oil rate of 77,305bopd and 3.81 million standard cubic meters per day (MSCMD) of associated gas through 15 producer wells with 12 water injection wells with a peak water injection rate of 9,400m³/d.

Eight wells of Cluster-2B free gasfields are expected to have peak production rate of free gas at 12.75MSCMD.

"Eight wells of Cluster-2B free gasfields are expected to have peak production rate of free gas at 12.75 million standard cubic meters per day."

From Cluster 2, total oil and gas production is estimated at 23.526 million tonnes and 50.706BCM, respectively during the project life.

As part of the project, ONGC plans to build facilities including one gas process platform with a bridge connected living quarters platform in order to process gas from free gas wells.

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Other facilities are floating production storage and offloading (FPSO) for processing, storage and evacuation of oil/ gas from Cluster 2A fields.

The project will also have 430km subsea pipelines of various sizes from 6in to 22in, with 151km umbilical and ten manifolds, riser base manifolds and onshore gas handling terminal.

ONGC also proposes drilling and completing 35 wells, which include 15 oil producers, 12 water injection and eight free gas producers.

The project’s first gas is expected by June 2019 and oil will start flowing from March 2020.

Overall project completion is scheduled for June 2020.

Image: ONGC proposes to drill and complete 35 wells as part of the project. Photo: courtesy of suwatpo/ FreeDigitalPhotos.net.