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    "wlbName" : "25/1-4",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eExploration well 25/1-4 was located on a\r\nlower Eocene structure straddling the 25/1 and 30/10 blocks limit, north-east\r\nof the main Frigg Field. It was drilled to explore additional gas reserves in\r\nthe Frigg area. A "Bright spot" phenomenon interpreted as a gas/oil\r\nor water table is clearly visible on all the seismic sections crossing the\r\nstructure. Possible Danian and Maastrichtian reservoirs were considered\r\nsecondary objectives.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eáWell 25/1-4 was spudded with the\r\nsemi-submersible installation Deepsea Driller on 1 April 1974 and drilled to TD\r\nat 2795 m in Maastrichtian marls. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe top of the Eocene reservoir (Frigg\r\nFormation) at 1967.8 was detected by C1 traces (maximum 3%). Based on shows on\r\ncores and electrical logs gas/oil and oil/water contacts were found at 2005.6 m\r\nand 2009 m, respectively. The contacts were not the same as on the Frigg Field,\r\nimplying that this discovery was not in communication with the main Frigg\r\nField. Background gas was weak to nil below 2010 and cuttings or sidewall cores\r\nbelow this depth showed no direct fluorescence or cut. Paleocene was penetrated\r\nat 2058 m with well-developed sand bodies as is usual in the area. Hence, the\r\nPaleocene contained 190 m net sands of which 25 m consisted of calcareous\r\nsandstone and 90 m of shaly sands. All Paleocene sands were water wet. In the\r\nMaastrichtian chalk some gas shows were recorded on the section 2757 m to 2763\r\nm. Some hydrocarbon saturation was inferred by logs, but an FIT at 2760 m\r\nrecovered 2.750 l of mud with only oil traces after a 25 minutes flow period.\u003c/p\u003e\r\n\r\n\u003cp\u003eCoring started at 1922 m, 45.8 m above\r\nthe Eocene sands. Eight conventional cores were cut from this point down to\r\n2028 m. Two wire line tests were conducted in the oil-bearing zone at 2006.5 m\r\nand 2007.5 m. The latter recovered 5.15 l of oil and 4.75 l of mud filtrate. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 30\r\nMay 1974 as an oil and gas discover",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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