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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 444,
    "wlbName" : "6407/6-1",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 6407/6-1 was the third well to be\r\ndrilled on the TrØndelag Platform offshore Mid Norway. The primary objective of\r\nthe well was to investigate the reservoir potential of Middle Jurassic\r\nSandstones (Fangst Group). Secondary objectives of the well were the Early\r\nJurassic Sandstone Hl-2 (Tilje and Åre Formations), and sandstones in the\r\nTriassic.\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 6407/6-1 was spudded with\r\nthe semi-submersible installation Zapata Ugland on 16 September 1984 and drilled\r\nto TD at 2895, 47 m into the Triassic Red Beds. In the 12 1/4" hole\r\nsection the hole suddenly packed off at 1591, probably due to overpressured\r\nEarly Eocene clays. The pipe was worked free and the mud weight increased.\r\nAfter that drilling proceeded without further difficulties. Logs were not run\r\nbelow 2869 m. The well was drilled with seawater/hi-vis slugs/gel down to 456\r\nm, with gypsum/lignosulphonate mud from 456 m to TD. The well proved a good\r\n"upper sandstone member" (Garn Formation), and a "lower\r\nsandstone member" (Ile Formation). Sandstone sequences interbedded with\r\nsiltstone, claystone, and coals were encountered also in the interval 2244 m to\r\n2457 m, the Tilje Formation. Isolated weak shows were recorded on core no 1 in\r\nthe lower part of the Garn Formation, otherwise no shows were observed in any\r\npart of the well. The RFT tool was run in the Middle Jurassic and four pressure\r\npoints were obtained in good to very good permability sandstone in the Garn\r\nFormation. The average gradient was 1.00 g/cm, indicating the formation was\r\nwater bearing. The electrical logs proved all reservoir sections in the well to\r\nbe water bearing.\u003c/p\u003e\r\n\r\n\u003cp\u003eFour cores were cut in the Middle\r\nJurassic Sandstone over the interval from 1870 - 1888.2 m. No fluid samples\r\nwere taken.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 26\r\nOctober 1984 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\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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