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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 11,
    "wlbName" : "30/9-2",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe wildcat 30/9-2\r\nwas planned as the first well on the Gamma structure in block 30/9. Well 30/6-9\r\nhad previously penetrated the structure but this well failed to encounter the\r\noil/water contact. The primary objectives of 30/9-2 were to verify the reserve\r\nestimate for the main part of the gamma structure and penetrate the oil/water\r\ncontact in the lower part of the Brent Group. Additional objectives were to\r\nobtain core material from the oil zone in the Etive Formation and perform a\r\nwater injection test in this, obtain information on the quality of the\r\nreservoir in the water zone and stratigraphical information on the southern\r\npart of the Gamma structure.& The well\r\nwas temporarily abandoned for about one year and then re-entered for an\r\nextended test.\u003c/p\u003e\r\n\r\n\u003cp\u003e \u003c/p\u003e\r\n\r\n\u003cp\u003e \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 30/9-2\r\nwas spudded with the semi-submersible installation \"Nortrym\" on 1\r\nApril 1983 and drilled to a total depth of 2830 m in the Early Jurassic Dunlin\r\nGroup. The well was drilled using water-based mud down to the 12 1/4\" hole\r\nat 1715 m. The 12 1/4\" hole was drilled to TD using oil based mud\r\n(\"ENVIROMUL\" and \"IL 2832 oil\" as oil base). While running\r\nthe 13 3/8\" casing, this got stuck at 1334 m. The casing was worked free\r\nusing diesel in the mud and the casing was set at 1680 m. After drilling the 12\r\n1/4\" hole to 2203 m the drill pipe got stuck with the bit at 2170 m.\r\nSeveral unsuccessful attempts were made to free the pipe. The drill pipe was\r\nthen backed off and the well was cemented back and sidetracked from 1482.5 m. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe Brent Group\r\nsandstones (2578-2767 m) RKB were hydrocarbon bearing down to 2737m where an\r\noil/water contact was encountered within the Etive Formation sandstones\r\n(2698-2767m).& No additional hydrocarbon\r\nbearing reservoirs were encountered by this well. Poor hydrocarbon shows\r\nreported from Upper Cretaceous limestones were considered uninteresting. The\r\nNess Formation (2578-2698 m) consisted of",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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