Gulf Keystone to Workover Shaikan-1 Well

The Shaikan Block
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Gulf Keystone announced the results of further testing of the Mus (1,627m to 1,667m) section of the Jurassic on its Shaikan-1 discovery well. Final, stable, production rates during this week's re-test, using a much improved test setup versus the original 2009 test, were measured at 1,250 bopd with an API gravity of 19.7 degrees and a gas oil ratio (GOR) of 10 standard cubic feet per barrel of oil at a flowing wellhead pressure of 50 psi. This natural flow rate represents a ten fold increase over the 128 bopd measured during the initial test in 2009. 

Tests using a low capacity electric submersible pump (ESP), resulted in rates up to 2,250 bopd. 

The workover rig will now begin operations to complete the Shaikan-1 well in the Sargelu (1,450m to 1,510m) section of the Jurassic, and the well will be configured for long term production testing. 

John Gerstenlauer, Chief Operating Officer for Gulf Keystone said, "This retest of the Mus formation demonstrates that even this very low GOR zone is capable of substantial natural flow production rates when properly configured. In addition, it gives us further encouragement for future development, having demonstrated significantly increased production values even with a low capacity ESP."


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