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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1443,
    "wlbName" : "2/9-3",
    "wlbHistory" : "\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eGeneral\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 2/9-3 was drilled on the Piggvar\r\nTerrace, between the Central Graben to the west and the Mandal High and the Søgne\r\nBasin to the east. The primary objective was to test for hydrocarbons, reservoir\r\nquality, and source rock potential and maturation in Late and Middle Jurassic formations.\r\nSecondary objectives were to determine the Permian stratigraphy in this portion\r\nof the Piggvar Terrace, and the reservoir quality and possible hydrocarbon\r\naccumulation in Early Permian Rotliegendes sands.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eOperations and results\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWildcat well 2/9-3 was spudded with the\r\nsemi-submersible installation Dyvi Stena on13 September 1989. After drilling to\r\n378 m the hole packed off, and the well had to be re-spudded. The re-spud took\r\nplace 20 m from the original location on 15 September 1989 and the well was drilled\r\nto TD at 4859 m in the Early Permian Rotliegend Group. BHA component failures\r\nin the 12.25" and 8.5" hole sections accounted for 9.4 days of lost\r\ntime, but generally drilling and operations went without significant problems,\r\nand the well was drilled within the scheduled time. Possible shallow gas had\r\nbeen warned pre-drill at 160, 425 and 535 m, but no shallow gas was\r\nencountered. The well was drilled with seawater and hi-vis pills down to 850 m,\r\nwith KCl/PHPA/PAC mud from 850 m to 3875 m, and with HRM/polymer mud from 3875\r\nm to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe lowermost part of the chalk was of\r\nSantonian age. The Coniacian, Turonian and Cenomanian were apparently absent as\r\nthey where in well 2/9-2. A 12 m thick Early Cretaceous section was penetrated,\r\ndating Valanginian to Early Barremian. No evidence of Albian, Aptian and\r\nRyazanian was seen. Top Late Jurassic came in at 3846 m, close to prognosed\r\nd",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}