Cairn Successfully Tests Well in Rajasthan

Rajasthan Basin
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Cairn announces that a cumulative flow rate of 6,000 barrels of oil per day has been achieved across three selected zones during an open hole drill stem test program in the N-B-1 exploration well, which is currently operating in the northern Rajasthan Basin.

The well intersected a stacked sequence of twelve oil bearing reservoir units in the Fatehgarh formation. Three separate sand units were tested with the following stabilized rates:

  • Zone 3 tested at 2,837 barrels of oil per day on a 96/64 inch choke.
  • Zone 2 tested at 1,925 barrels of oil per day on a 64/64 inch choke.
  • Zone 1 tested at 1,240 barrels of oil per day on a 68/64 inch choke.

  • The tested oil has a specific gravity of approximately 24 to 29 degrees API and reservoir permeabilities are estimated to be between 500 milliDarcies and 3 Darcies.

    The first appraisal well and additional seismic are planned to commence later this month.

    Additional Exploration Activity

    The following exploration wells are also currently operating:

  • Well N-A-1 in Rajasthan commenced on January 30th.
  • Well CB-X-1 in Gujarat commenced on January 28th.

  • Bill Gammell, Chief Executive, commented: "This is a very strong test result and confirms our view that in isolation this discovery transforms the value of our portfolio. We expect this well to produce over 10,000 barrels of oil per day."

    Cairn holds a 100% interest in Block RJ-ON-90/1. ONGC has a right to 30% of any development area resulting from a commercial discovery on the block.

    "Darcies" where referred to above means an industry measure of permeability where permeability is the property of a porous medium and a measure of the medium's capacity to transmit fluid.

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