Business
14/10-4 Appraisal Well Update
14/10-4 Appraisal Well Update.
About this update from Rockhopper Exploration Plc
[{"type":"text","content":"\n \n\n\n\n\n\nRNS Number : 2716D Rockhopper Exploration plc 21 March 2011 \n \n\nEmbargoed: 0700hrs, 21 March 2011\n \nRockhopper Exploration plc\n(\"Rockhopper\" or the \"Company\")\n \n14/10-4 Appraisal well update\n \nRockhopper Exploration, the North Falkland Basin oil and gas exploration company, is pleased to provide the following update on the 14/10-4 appraisal well.\n \n\n\nSignificant reservoir package and hydrocarbon column encountered\n\n\n33m (108 ft) net pay in good quality reservoir with 20% average porosity\n\n\nTop reservoir encountered 66m (216ft) downdip from 14/10-2\n\n\nOil Water Contact at 2477m true vertical depth subsea (2503m measured depth) in main fan indicates to the Company that the southern main sea lion fan is full to spill\n\n\nCompany believes P90 increased significantly\n\n\nCompany has significantly increased confidence in commerciality\n\n\nOil indicated as medium grade similar to 14/10-2\n\n\nDownhole mini Drill Stem Test successfully flowed oil into the well and indicates better potential flow rates and producibility than at 14/10-2\n\n\n \n14/10-4 was drilled 2.3 km WNW of the 14/10-2 discovery well to a total depth of 2801 metres (drilled depth) within the Sea Lion discovery area, and was the first appraisal well on the Sea Lion feature, designed to investigate reservoir presence and oil column at a downdip location.\n \nThe well has been successful, proving a thick, high quality reservoir package, a substantial oil column and recognition of the first oil-water contact in the licence to date. The geological prognosis came in very close to prediction.\n \nThe top Sea Lion reservoir sands were encountered 66m (216 ft) downdip from the 14/10-2 discovery well. A total reservoir package of 107m (351 ft) comprising four main sands was encountered with a net to gross of 76%. Average porosity is 20% and permeability is over 100 millidarcies.\n \n30m of net pay has been encountered in the upper of the four sands, representing the main Sea Lion southern fan. The gross oil column now proven in the main Sea Lion southern fan is 104m (341 ft).\n \n3 metres of net oil pay is present in the lower sands; these thin oil sands are below the water leg of the upper sands indicating at least one additional oil column. The lower fan encountered in 14...