RIL drilled the well CB10A-J1 to a total depth of 1957mt in Part A of the block, with the objective of exploring the play fairway in the Miocene Basal Sand (MBS) of Babaguru formation and Eocence Pays of Kalol formation. Hydrocarbon bearing zone was identified at a depth of 1376-1385.5mt in the Miocene Basal Sand (MBS) of Babaguru formation.
Conventional production testing was carried out in the interval of 1376-1381.5 m. The well flowed at a rate of 255bopd, through a 6mm bean with a flowing tube head pressure of 180psi.
The company said that 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 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, nearly 80% of the block area also has 3D seismic coverage. Of the fifteen (15) exploratory wells drilled in the block by RIL so far, 11 are located in Part-A and the remaining 4 in the Part B of the block. RIL is continuing further exploratory drilling efforts in the block.
This discovery, named ‘Dhirubhai–48’, the fifth oil discovery in the block so far, has been notified to the Government of India and to the Director General of the Directorate General of Hydrocarbons. The potential commercial interest of the discovery is being ascertained through more data gathering and analysis.
