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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 38,
    "wlbName" : "15/6-6",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 15/6-6 was drilled to appraise the north\r\neastern flank of Alpha structure on the 15/6-3 Sleipner Vest Discovery in the North Sea. The primary target was a gas bearing Jurassic sandstone known as the Hugin Formation.\r\nIt was drilled to provide needed structural control and to establish a\r\ngas/water contact. \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 15/6-6 was spudded with\r\nthe semi-submersible installation Glomar Biscay II on 1 April 1982 and drilled\r\nto TD at 3760 m in Late Triassic sediments of the Skagerrak Formation. The\r\n36" hole had to be reamed several times due to ledging. This also occurred\r\nin the top of the 26" section. Forty-six bbl's (7.3 m3) of fluid were lost\r\nto the formation during cementing of the 13 3/8" casing. The mud weight in\r\nthis section was 1.68 which is lower than the previous Sleipner wells. This and\r\nthe fluid loss can possibly be related to an unconsolidated sand (Skade\r\nFormation) interval from 1185 to 1199 m. Minor hole problems were encountered\r\nin the 12 1/4" section. The drill string was temporarily stuck at 1627 m\r\nafter making a connection. The well was drilled with seawater and gel.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well proved sands in the Utsira, Grid,\r\nHeimdal, and Sleipner Formations; all water bearing. The gas bearing Hugin\r\nFormation was encountered at 3563 m and had a gross thickness of 58 m. The\r\ngas/water contact was found at 3607 m, which gives a gross gas interval of 44\r\nm. No oil shows were reported from the target reservoir or other sections in\r\nthe well.\u003c/p\u003e\r\n\r\n\u003cp\u003eThree cores were taken in the Middle\r\nJurassic interval in the 8 1/2" section. Core 1 recovered 18.5 m sandstone\r\nfrom 3591 m to 3609.5 m. Core 2 recovered 16.0 m sandstone from 3609.5 m to\r\n3622 m. Core 3 recovered 18.9 m Sandstone, shale and coal from 3625.5 m to\r\n3644.5 m. No wire line fluid sample was taken. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 9 June 1982 as a gas appraisal well.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well w",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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