{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 119,
    "wlbName" : "33/12-6",
    "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 33/12-6 was drilled on Tampen Spur in\r\nthe North Sea between the Gullfaks Sør Field area and the UK border. The\r\nobjective was to test a large structural feature in the southeastern part of\r\nBlock 33/12, located across a major regional fault bounding the eastern flank\r\nof the Brent and Statfjord Fields. The targets were sands in the Early and\r\nMiddle Jurassic sandstones of the Statfjord and Brent Groups.\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\u003eWildcat well 33/12-6 was spudded with the\r\nsemi-submersible installation Norskald on 2 March 1976 and drilled to TD at\r\n4612 m in the Triassic Hegre Group. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Middle Jurassic Brent Group was\r\nencountered at 2973. Gross thickness was 312 meters. Only rare fluorescence\r\nwith minor gas readings were noted in the sands. Higher gas readings\r\nencountered were associated with coal beds. Using cutoffs of 40 percent clay\r\nvolume and 12.5 percent porosity, Schlumberger’s coriband analysis indicates\r\n103 meters of net sand with an average porosity of 20 percent. The coriband analysis\r\nshowed the sands to be water wet with only 6 m of net pay with water\r\nsaturations less than 65 percent, scattered throughout the unit. The Early Jurassic\r\nStatfjord Group sands were topped at 3721 meters. Gross thickness was 309.5\r\nmeters. Using the same cutoff parameters as for the Brent formation, log\r\nanalysis indicated 149 meters of net sand with an average porosity of 16\r\npercent and showed the sands to be water wet. Only 3 m of scattered thin zones\r\nhad water saturations less than 65 percent. No shows were seen in the samples.\r\nHowever, the core in the Statfjord sands had residual oil saturation over the\r\n6.51 meters recovered indicating earlier oil migration through the section.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe core w",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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