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Drilling Report
Drilling Report.
About this update from Sunda Energy Plc
[{"type":"text","content":"\n Gold Oil PLC\n02 October 2006\n\n\nFor Immediate Release 2nd October 2006\n\n\n Gold Oil plc ('Gold') update on the testing of their Peruvian exploration well\n\n San Alberto-1X and Colombian Operations.\n\nSan Alberto-1X was selected following extensive regional geological and\ngeophysical studies that tied in Block XXI to other Palaeozoic and Tertiary\nwells and fields. The well was spudded on 11th July 2006 and reached total depth\nof 5, 113 feet on the 3rd August 2006, meeting the geological objectives in the\ndrilling programme.\n\n\nThe objectives of the well were the Tertiary Verdun sands that produce gas in\nOlympic's Las Casita gas field 20 kms to the west of San Alberto-1 and the\nfractured Palaeozoic quartzites that produce oil in PetroTech's offshore San\nPedro field 50 kms to the west. Logging, drilling results and regional\ninformation showed 250 gross feet of hydrocarbon bearing sands in the Palaeozoic\nand 315 gross feet of hydrocarbon bearing sands in the Verdun. The decision was\ntaken to production test these hydrocarbon bearing sands in both the Verdun and\nthe Palaeozoic.\n\n\nAfter circulating to completion fluid and running a slotted-liner over the\nPalaeozoic the drilling rig was moved off location. After clearing the location\na work-over hoist and test facilities moved on to the location on 22nd August\nand produced formation water at 960 barrels per day from the base of the\nPalaeozoic, below the hydrocarbon bearing interval. A heavier rig will move back\nonto location in mid to late October to pull the slotted liner and run and\ncement a new liner over the Palaeozoic which will isolate the water and allow\nthe hydrocarbon bearing intervals to be perforated and tested.\n\n\nIn Colombia approval was finally obtained from the Ministry to start production\nbut after only a few hours pumping out workover fluid from the well the\nhydraulic power pump that drives the downhole jet pump suffered a mechanical\nfailure. A replacement pump was installed by the vendor and the well began\nproduction, and then the surface pump failed again and was replaced by the\nvendor. In the meantime the well flowed at rates of between 467 and 738 bbls per\nday for a period of 12 hours before the surface pump failed again. The initial\nflow contained 60% oil, 30% completion fluid from cleaning up the well and 10%\nemulsion.\n...