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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 354,
    "wlbName" : "25/2-2",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 25/2-2 is located east of the Frigg\r\nField and south of the Frigg Øst Field, on the top of an E-W trending\r\nstructure. The well was drilled to appraise the 25/2-1 Øst Frigg Discovery made\r\nin September 1973. The main target was lower Eocene sands where seismic\r\nsections displayed a bright spot in the western part of the closure just below\r\nthe Frigg sand horizon. Secondary targets were Danian and Maastrichtian sands.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well 25/2-2 was spudded with the\r\nsemi-submersible installation Deepsea Driller on 31 May 1974 and drilled to TD\r\nat 2740 m in the Late Cretaceous Shetland Group. \u003c/p\u003e\r\n\r\n\u003cp\u003eTop Early Eocene sands (Frigg Formation)\r\nwere encountered at 1949 m, 23 m lower than prognosed. The Hermod Formation\r\ncame in at 2269 m while Danian sand (Ty Formation) was encountered at 2563 m\r\nand chalky limestone (Shetland Group) at 2703 m. Hermod and Ty were water wet.\r\nAn increase in C1 and C2 at around 1950 m during drilling marked the top of the\r\nFrigg Formation reservoir. From electrical logs, FIT's and the DST Gas/oil and\r\noil/water contacts were set at 1964.2 m and 1974.4 m, respectively. Three cores\r\nwere cut from 1991 to 2012.5 m. The cores consisted almost entirely of sand\r\nwith only some thin interbeds of silt in core number 2. Down to 2011 m the\r\ncored sands were brown coloured from oil stain, and direct fluorescence and\r\ncuts were very strong. No shows were observed from 2011 m to 2015.5 m in the\r\nbase 1.5 m of core number 3. The DST carried out in the cored interval produced\r\nonly water. Weak shows were recorded in the Ty Formation sands. Two FIT's at\r\n1952 and 1968.2 in the Frigg Formation reservoir sampled gas and oil and\r\nrecorded formation temperatures of 57.6 °C and 57.9 °C, respectively.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 11\r\nJuly 1974 as an oil and gas appraisal. \u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eDST 1 carried out from 1983 to 1996 m\r\nproduced 5.1 m3 of salt water (53 g/1).\u003c/p\u003e\r\n\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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