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    "wlbName" : "6507/11-1",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 6507/11-1 is located in the\r\nHaltenbanken area and was the third well to be drilled off shore Mid Norway.\r\nThe purpose of drilling the well was to test the whole stratigraphic sequence\r\nbetween seabed and 500 metres below the Near-Base Jurassic reflector or into\r\nthe Triassic, whichever came first.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe specific targets, represented by\r\nvertical closures, were Middle Jurassic sandstone, below the Base Cretaceous\r\nUnconformity, and Early Jurassic sandstone below the Middle Jurassic\r\nUnconformity. A possible flatspot was identified at this level. In addition,\r\nany horizon below these reflectors will, according to Saga's interpretation, be\r\nclosed, and represent a possible reservoir.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well is Type Well for the Tilje\r\nFormation.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 6507/11-1 was spudded with the\r\nsemi-submersible installation West Venture on 13 September 1981 and drilled to\r\nTD at 3139 m in the Late Triassic Grey Beds. Two gas kicks occurred in the 12\r\n1/4" section at 2125 m and 2128 m with up to 600 000 ppm gas readings\r\nobserved at surface. The blow out was killed by circulating increasing mud\r\nweight in steps from 11.0 ppg to 13.2 ppg. The well was drilled with spud mud\r\ndown to 460 m, with gypsum mud from 460 m to 815 m, with gypsum/polymer mud\r\nfrom 815 m to 1615 m, and with a lignosulphonate/causticized-lignite mud\r\nthrough the 12 1/4" section from 1615 m to 2300 m. In this section a\r\nnumber of mud additives were used in the kill well operations. The section from\r\n2300 m to TD was drilled with a lignosulphonate mud.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well proved the existence of a\r\nlithological sequence ranging in age from Late Triassic (Early Rhaetian) to\r\nQuaternary. The Cenozoic succession was 1794 m thick. The dominant lithology of\r\nthe Nordland and Hordaland Group was clay stone, but the former was less\r\nconsolidated and contained more poorly sorted sand and rock fragments. An\r\nargillaceous sandstone of Oligocene/Miocene age was encounte",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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