Caspian Sunrise PLC said an interval in its BNG asset in Western Kazakhstan appears to be larger than previously believed. The company issued an operations update saying a core sample from its Deep Well A8 on the Airshagyl structure showed traces of oil-bearing carbonate.
The company took an 18-m sample core at 4,440 m. The initial evaluation showed that the core contained oil-bearing carbonate for all but 2 m out of the 18 m.
In addition, a core was collected at 4,346-4,350 m, and a core was collected at 4,370-4,379 m. Preliminary analysis from the two core samples showed them to be porous with oil and natural gas.
Caspian Sunrise plans to drill additional 40 m before running a wireline analysis over the entire 110-m interval. The well will be cased to 4,500 m.