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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 250,
    "wlbName" : "2/1-2",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 2/1-2 is located on the Sørvestlandet\r\nHigh, ca 6 km northwest of the Gyda Field in The North Sea. The objective was\r\nto test possible Late Jurassic sands within a salt-induced structural high.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well is Reference Well for the Mandal\r\nand Ula Formations.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 2/1-2 was spudded with the\r\nsemi-submersible installation Nordskald on 14 December 1977 and drilled to TD at 3555 m, 15 m into Late Permian Zechstein anhydrite. The well was drilled\r\nwith seawater and gel down to 174 m, with Lime Drispac from 174 m to 3135 m,\r\nand with Lignosulphonate from 3551 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eFifty-two meter of Maureen Formation was\r\nencountered at 2692 m, directly overlying the Tor Formation at 2743.5 m. The\r\nCromer Knoll Group came in at 3121.5 m, and top Jurassic shales (Mandal\r\nFormation), at 3299 m. The Mandal Formation was seen as a potentially excellent\r\nsource rock for major oil, but was marginally mature on-structure. The well\r\npenetrated water-bearing Late Jurassic sandstone (Ula Formation) at a depth of\r\n3316 m. The sandstone was 30.5 m thick and had porosities of less than 10% and\r\npermeabilities less than 1 md. The well then penetrated 37.5 m of argillaceous\r\nMiddle Jurassic sandstone and 156 m of interbedded Triassic sandstones and\r\nsiltstones with occasional mudstones. No shows were observed in the well while\r\ndrilling.\u003c/p\u003e\r\n\r\n\u003cp\u003eOne full hole core was cut within the Ula\r\nFormation sandstone from 3318 to 3336 m. No wire line fluid samples were taken.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 26 February 1978 as a dry well.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eNo drill stem test was performed.\u003c/p\u003e\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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