{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 266,
    "wlbName" : "2/7-7",
    "wlbHistory" : "\r\n\r\n\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 2/7-7, was drilled to appraise the southern\r\npart of the Eldfisk structure in North Sea. The primary objective was to test\r\nthe Danian Limestone, expected to be about 120 m thick. \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 2/7-7 was spudded with the\r\nsemi-submersible installation Ocean Viking on 2 January 1973 and drilled to TD\r\nat 3084 m in the Early Cretaceous Rødby Formation. The well was drilled with seawater\r\nand hi-vis sweeps down to 497 m and with gypsum/lignosulphonate mud from 497 m\r\nto TD. 4-6% diesel additive was used below 497 m.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Danian Limestone was found to be\r\nhighly fractured, only3 0 m thick, and yielded commercial quantities of oil and\r\ngas on one drill stem test. The Late Cretaceous, which was 195 m thick, was\r\nalso found to contain hydrocarbons, and yielded commercial amounts of oil and\r\ngas on two out of three drill stem tests. The Danian Limestone and the upper\r\npart of the Late Cretaceous were thinner than expected due to a fault throwing\r\nCampanian on Turonian rocks.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo cores were cut and no fluid samples\r\nwere taken.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 29\r\nMarch 1973 as an oil appraisal.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eTesting\u003c/span\u003e\u003c/b\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eFour intervals in the chalk section were\r\nperforated and tested\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eDST's 1 and 2 tested the interval 2911 to\r\n2925. The interval gave a weak flow with headed oil + gas. The oil gravity was\r\nmeasured to 36.2 °API.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eDST 3 tested the interval 2838 to 2905 m.\r\nThe interval produced after acidiz",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}