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14/10-5 Appraisal well - Flow Test Result
14/10-5 Appraisal well - Flow Test Result.
About this update from Rockhopper Exploration Plc
[{"type":"text","content":"\n \nRNS Number : 1253J Rockhopper Exploration plc 27 June 2011 \n\nEmbargoed: 0700hrs, 27 June 2011\n \nRockhopper Exploration plc\n(\"Rockhopper\" or the \"Company\")\n \n14/10-5 Appraisal well update - flow test result\n \nRockhopper Exploration, the North Falkland Basin oil and gas exploration company, is pleased to provide the following update on the flow test carried out at well 14/10-5.\n \n· Well flowed at commercially viable rates\n· Well flowed at stabilised rates of 5508 stb/d \n· Well achieved a maximum stabilised flow rate of 9036 stb/d\n \nA total section of 86m, incorporating 79m of reservoir, was perforated between 2379m and 2465m (md) over the Sea Lion Main Fan Complex. No lower fan sands were perforated on this flow test. \n \nThe well flowed for a main 48 hour flow period at a stabilised rate of 5508 stb/d and 940 mscf/d of gas with a flowing well head pressure (WHP) of 783 psi on a 48/64 inch choke. The gas oil ratio (GOR) was 170 scf/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 demonstrates 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.\n \nThe well was flowed for a second main flow during which the final maximum flow rate of 9036 stb/d was achieved with a flowing WHP of 625 psi on a fixed 1 inch choke over a 2 hour period before shutting the well in for a final build up and injectivity tests. The GOR during the maximum rate flow period was 153 scf/stb.\n \nDuring the test down hole pressures were recorded and both surface and downhole crude oil samples were collected and will now be analysed by the Company.\n \nDownhole mini DSTs (Drill Stem Test) were also performed on two of the three sands making up the 14m of net pay encountered in the well, which form part of the lower fan. These 2 sands had net pay of 8m and 4.5m. Interpretation of the...