Reliance Industries Limited (RIL) announced it's fourth oil discovery in exploratory block CB-ONN-2003/1 (CB 10 A&B) located onland in the Cambay Basin and awarded under NELP-V round of exploration bidding.
The well, CB10A-F1, was drilled to a total depth of 1605 m 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 1397-1407 m and 1378-1382 m. Conventional production testing was carried out in one of the zones in the interval 1397-1400 m. 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 250 psi. 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 block CB-ONN-2003/1 is located at a distance of about 130 kms from Ahmedabad in Gujarat in the Cambay basin. The block covers an area of 635 sq km 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 fourteen (14) exploratory wells drilled in the block by RIL so far, 10 of them are located in Part-A and the remaining 4 nos. in the Part B of the block. RIL is continuing
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. The potential commercial interest of the discovery is being ascertained through more data gathering and analysis.
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