ONGC D-1 field starts production

The D-1 field of Oil and Natural Gas Corporation's Bassein and satellite asset located in the deep continental shelf area of Mumbai offshore has started production with the first development well flowing. On completion of other wells, it is expected to produce 9,000 barrels a day.

The development of the D-1 field has been planned in two phases. At present, the first phase of development is under implementation, wherein three producers and three injectors are planned for drilling and completion. The second phase also envisages three producers and three injectors after evaluating the production performance of the first phase.

To exploit oil and gas from 255 sq km D-1 structure, a 12-slot well-cum-water injection platform and control system for electrical submersible pumps and chemical injection system has been installed.

The produced well fluid is to be processed at early production system (EPS). Sagar Laxmi "" the bridge connected to the D-1 platform "" has been modified and upgraded by installation of DCS (digital control system) for process control and other infrastructural facilities required for exploiting hydrocarbons.

This being an isolated and marginal field, the oil produced after processing will be transported from EPS through SBM (single-bouy mooring) for offloading into an oil tanker for onward transportation to refinery.