WesternZagros Resources has made a major oil discovery in the Oligocene reservoir at the Kurdamir-2 exploration well in the Kurdistan Region of Iraq.
The Kurdamir-2 well has reached the intermediate casing depth of 2,812 metres, and has drilled through the Oligocene interval. Wireline logs indicate a porous zone of 140 metres thickness within the Oligocene interval, between 2,422 and 2,562 metres, all of which is hydrocarbon bearing. Within this hydrocarbon zone, well log data indicates 22 metres of gross natural gas pay above 118 metres of gross oil pay. No evidence of water has been encountered within the Oligocene interval.
“We are excited to learn that the Kurdamir and adjacent Topkhana structures have a common oil leg in the Oligocene reservoir with the potential of containing a giant oil and gas field. We’re even more excited by the fact that we don’t yet know the full extent of the resources that the Oligocene, alone, contains,” said Simon Hatfield (pictured), WesternZagros’s Chief Executive Officer.
“Our 100% drilling success rate continues with this major oil discovery. The Kurdamir-2 discovery is the third high-impact discovery on our Blocks in ten months and is an important confirmation of our queue of high-quality, light oil exploration opportunities. In particular, our view is that this discovery significantly improves the oil potential of the deeper, as yet undrilled reservoirs in Kurdamir-2 and also those prospects adjacent to Kurdamir on our Garmian Block.”
When the well reached a depth of 2,477 metres, a drill stem test was conducted of the open hole from the base of the 13 5/8″ liner at 2,315 metres to 2,477 metres, which included 55 metres of the Oligocene porous zone. This test was conducted across the interpreted gas-oil contact at 2,444 metres and tested 22 metres of gas pay in contact with 33 metres of oil pay. The test achieved a flow rate of 7.3 million cubic feet per day of gas and a stabilized flow rate of 950 barrels per day of 47 degree API mixture of light oil and condensate over the final seven hours of the main flow period. This rate was achieved through a 56/64 inch choke at an average flowing well head pressure of 650 pounds per square inch and without any stimulation.