Rockhopper Exploration, the North Falkland Basin oil and gas exploration company, said an appraisal of well 14/10-5 resulted in commercially viable stabilised rates of 5,508stb/d, and a maximum stabilised flow rate of 9,036stb/d, Bairdmaritime reports.
A total section of 86 metres, incorporating 79 metres of reservoir, was perforated between 2,379 metres and 2,465 metres (md) over the Sea Lion Main Fan Complex. No lower fan sands were perforated on this flow test.
The well flowed for a main 48-hour flow period at a stabilised rate of 5,508stb/d and 940mscf/d of gas with a flowing well-head pressure (WHP) of 783psi on a 48/64-inch choke. The gas oil ratio (GOR) was 170scf/stb over the 48 hour period. The well was flowed through a separator under artificial lift by means of a downhole electric submersible pump (ESP).
The flowing wellhead temperature was 62 degrees C. This temperature is significantly higher than that achieved during the test of well 14/10-2 and Rockhopper said it demonstrated the highly effective nature of the vacuum insulated tubing (VIT) used during the test at 14/10-5. It was not necessary to use any wax inhibitors or pour point suppressants and no water or H2S were produced during the test.
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