The well, CB10A-F1, was drilled to a total depth of 1605mt in Part A of the block with the objective of exploring the play fairway in the Miocene Basal Sand (MBS) of Babaguru formation. Two hydrocarbon bearing zones were identified from 1397mt-1407mt and 1378mt-1382mt.

Conventional production testing was carried out in one of the zones in the interval 1397mt-1400mt. The well flowed at a rate of 300 barrels of oil per day (bopd) through 6 mm bean with a flowing tubing head pressure of 250psi.

The Discovery is significant as this play fairway is expected to open more oil pool areas leading to better hydrocarbon potential within the block, the company said.

The block CB-ONN-2003/1 is located at a distance of about 130km from Ahmedabad in Gujarat in the Cambay basin. The block covers an area of 635sqkm in two parts viz., Part A & Part B.

RIL, as operator, holds 100% Participating Interest (PI) in the block. While the entire block was covered with 2D seismic, about 80% of the block area has 3D seismic coverage. Of the 14 exploratory wells drilled in the block by RIL so far, 10 of them are located in Part-A and the remaining four in the Part B of the block. RIL is continuing further exploratory drilling efforts in the block.

This Discovery, named ‘Dhirubhai–47’, the fourth oil discovery in the block so far, has been notified to Government of India and Director General, Directorate General of Hydrocarbons.