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    "wlbNpdidWellbore" : 1187,
    "wlbName" : "34/7-12",
    "wlbHistory" : "\r\n\u003e\r\n\r\n\u003cp\u003eWell 34/7-12 is a replacement well for\r\nwell 34/7-11, which was junked for technical reasons. It is located in the\r\nTampen Spur area in the Northern North Sea. Its overall purpose was to assess\r\nthe hydrocarbon potential in the "B"-structure in the southern part\r\nof the block. The primary objectives were to establish the thickness and\r\nreservoir quality of the prospective Brent the Brent Group in Group, and to determine\r\nthe OWC. The secondary objectives were to assess the potential of the Dunlin\r\nCook Formation reservoir, the Statfjord Formation and the upper part of the\r\nTriassic Lunde unit B/C reservoir section. TD was prognosed to 2900 m.\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 34/7-12 was spudded 20 m\r\nnorth of the 34/7-11 location. It was drilled with the semi-submersible\r\ninstallation Treasure Saga on 11 October 1987 and drilled to TD at 2784 m in\r\nthe Late Triassic Lunde Formation. The well was drilled without significant\r\ntechnical problems. The well was drilled with spud mud down to 852 m and with\r\nKCl mud from 852 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe Brent Group came in at 2169 m, and\r\nStatfjord Formation at 2606 m. Lunde Formation was encountered at 2763 m.\r\nOil/water contact was defined in the Ness Formation at 2250 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe Brent Group, from 2169 to 2340.5 m\r\n(171.5 m thick) comprised the sandy Tarbert Formation,the interbedded shaly and sandy Ness Formation, the sandy Etive and\r\nRannoch Formations and at the base the conglomeratic Broom Formation. The\r\nDunlin Group was penetrated from 2340.5 to 2606 m (265.5 m thick), comprising\r\nthe shaly Drake Formation at the top, the Cook Formation with interbedded\r\nsandstone and claystone, the Burton Formation with claystone and minor\r\nsandstone and the Amundsen and Calcareous Amundsen Formations having clay\r\nstones with minor limestone. The Statfjord Formation, 157 m thick from 2606 to\r\n2763 m, was dominated by sandstones with minor to interbedded claystone. The\r\nLate Triassic upper Lunde Formation was encountered at 2763 ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}