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    "wlbNpdidWellbore" : 1842,
    "wlbName" : "34/8-6",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 34/8-6 was designed to drill North\r\nof the Visund Field on a northerly trending arm of the Tampen Spur. The main\r\nstructural feature in block 34/8, the A-structure, is a NNE-SSW oriented\r\nelongated rotated fault block with pre-Cretaceous strata dipping towards the\r\nWNW. The block contains the Visund field, and is divided into two compartments,\r\nthe A-south and the A-north, by a central fault. The well will test a\r\nstratigraphic trap on the northwest flank of the A-structure. From seismic\r\nanomalies possible shallow gas was expected at 510 m, 544 m, 556 m, and 877 m.\r\nLevels at 544 m, and 556 m are dipping sand layers, and could contain gas with\r\noverpressure. Scattered boulders could be expected between 424and 540 m. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe primary objective for well 34/8-6 was\r\nto test the presence of a hydrocarbon-bearing sand within the Upper Jurassic\r\nDraupne Formation, and was drilled close to the thickest portion of the\r\ninterpreted turbidite sand. Secondary objectives were to drill through the\r\nBrent Group to yield more information about development and thickness control\r\ndown dip of the structural crest, and to tag top of the Dunlin Group to permit\r\na good seismic tie-in, which can be carried up dip towards the Visund\r\nreservoir.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 34/8-6 was spudded with the\r\nsemi-submersible installation Transocean 8 on 21 September 1991 and at a depth\r\nof 3950 m in the Early Jurassic Drake Formation. The well was drilled with spud\r\nmud down to 1235 m and with KCl mud from 1235 m to TD. Drilling went on without\r\nany significant problems. Shallow gas indications were encountered during\r\ndrilling of the 8 1/2" pilot hole at 541 m and 550 m, but caused no\r\nproblems, and no gas was observed at the wellhead during drilling operations.\r\nThe gas indications did not correspond with any of the predicted sand layers. \u003c/p\u003e\r\n\r\n\u003cp\u003eThere was no sandstone developed at the\r\nprimary objective in the Draupne Formation. Crude oil appeared in the mu",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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