{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 381,
    "wlbName" : "30/6-2",
    "wlbHistory" : "\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 30/6-2 was drilled to appraise the\r\n30/6-1 Oseberg discovery. Well 30/6-1 found gas in the Brent Group and water-filled\r\nreservoirs in the Dunlin and Statfjord groups. The primary objectives were to\r\ntest the Dunlin and Statfjord sandstones in a structurally higher setting on\r\nthe Oseberg Alpha structure. Secondary objective was appraisal of the Brent\r\nGroup hydrocarbons.\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\u003eAppraisal well 30/6-2 was spudded with\r\nthe semi-submersible installation Deepsea Saga on 24 September 1979 and drilled\r\nto TD at 2890 m in the Triassic Hegre Group. Tight hole became a serious\r\nproblem at 1313 m. This was cured with salt water and diesel addition. Five\r\ndays were counted as non-productive due to bad weather and fishing for lost\r\nobjects in hole. The well was drilled with spud mud down to 736 m, and with Chromium-Lignosulphonate/bentonite\r\nmud from 736 m to TD. After the diesel addition at 1313 m the mud contained 8%\r\ndiesel. The diesel content became slowly diluted to 0.25% at TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Brent Group was penetrated from 2191\r\nto 2237. It is 46 m thick and gas bearing. The hydrocarbon/water contact was\r\nnot seen in the well. The underlying Dunlin and Statfjord groups were both\r\nwater bearing. Oil shows were described on cuttings and 39% water saturation\r\nwas calculated, from top Brent and all through the Shetland Group up to 2165 m.\r\nFurther oil shows on cuttings and core were described at 1945 to 1955 m in the\r\nBalder Formation, on cores and cuttings in the Dunlin Group, and on the\r\nStatfjord core.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eA total of seven cores were recovered in\r\nthe interval from 2202 to 2238.5 m in the Brent Group, 2435 m to 2437.5 m, and\r\n2444.5 to 2454.5 m in the Dunlin Group, and 2571 to 2577 m in the top of ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}