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    "wlbName" : "15/6-7",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 15/6-7 was the first well in licence\r\n166. The primary objective of the well was to test the hydrocarbon potential of\r\nthe Middle Jurassic, Hugin Formation of Callovian age within a seismically\r\ndefined structural trap. There were no secondary objectives for the well,\r\nhowever, other potential reservoir horizons, albeit outside closure, were\r\nanticipated within the early Tertiary succession. The well programme was\r\ndesigned to maximize the evaluation of these sections as\u003c/p\u003e\r\n\r\n\u003cp\u003erequired. \u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eExploration well 15/6-7 was spudded on 24\r\nApril 1993 with the semi-submersible installation "Vildkat Explorer"\r\nand drilled to TD at 3540 m in the Triassic Smith Bank Formation. The well was\r\ndrilled with gel and seawater down to 505 m, with PHPA/KCl mud from 505 m to\r\n1173 m, with PHPA/KCl/Glycol mud from 1173 m to 2788 m, and with PHPA/KCl mud\r\nfrom 2788 m to TD. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe Quaternary and Tertiary sequence\r\nrepresented by the Nordland, Hordaland and Rogaland Group is dominated by\r\nmudstone lithologies with occasional thick sandstone developments in the\r\nUtsira, Grid, and Heimdal Formations. Background gas values ranged from less\r\nthan 0.1% to 0.5% with rare isolated gas peaks. The Late Cretaceous succession\r\nin the well, 493 m thick, is dominated by carbonate lithologies of the Shetland\r\nGroup; below 3150 m these become increasingly and atypically sandy. A number of\r\ngas peaks were recorded over the interval 3025 m to 3157 m with a maximum gas\r\npeak of 5.42% recorded at 3154 m. The Early Cretaceous, 14.5 m thick,\r\nrepresented by the Cromer Knoll Group is substantially thinner than anticipated\r\nand consists of arenaceous limestones interbedded with thin calcareous\r\nsandstones. The Upper Jurassic Draupne Formation was penetrated at 3233 m, 36 m\r\nlow to prognosis. Intra Draupne Formation Sandstone was encountered at 3292 m.\r\nA formation fluid influx of 3.9 m3 equivalent to a calculated pore pressure of\r\n1.5 sg (RFT) occurred at 33",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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