{
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      "rel" : "collection",
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      "title" : "The collection document"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "OBJECTID" : 228,
    "wlbNpdidWellbore" : 233,
    "wlbName" : "34/7-2",
    "wlbHistory" : "\r\n\r\n\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\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 34/7-2 was drilled just north of the\r\nTordis Øst discovery in the northern North Sea. The main objectives were to\r\ntest for hydrocarbons in the Jurassic Statfjord Formation and in the Triassic\r\nLunde Formation. \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 34/7-2 was spudded with the\r\nsemi-submersible installation Treasure Saga on 2 September 1984 and drilled to\r\nTD at 2475 m in the Late Triassic Lunde Formation. A total of 83 hours rig time\r\nwas NPT due to repairs resulting from a failed RIH with the 26" bit after\r\nunderreaming to 816 m, and a leak in the acoustic system discovered after\r\nsetting the 9 5/8" casing at 2031 m. The well was drilled with seawater\r\nand hi-vis pills down to 848 m, with KCl/polymer mud from 848 m to 2042 m, and\r\nwith lignosulfonate mud from 2042 m to TD. No shallow gas was encountered.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eExcept for the sandy Utsira Formation and\r\ntwo sandstone units in the Hordaland Group (in the order of 40 - 50 m each) the\r\nwell proved mainly claystones down to the Statfjord Formation at 2152 m. At BCU\r\n(2085 m) there was a major hiatus from Pliensbachian to Campanian. The Lunde\r\nFormation was encountered at 2271 m. The gross thickness of the Statfjord in\r\nthis well is 119 m with 43.5 m of net sand. The well drilled some 204 m into\r\nthe Lunde Formation, which in the upper part proved a siltstone sequence with\r\nminor sandstone and claystone, while the lowermost 117 m proved a sequence of\r\nsandstones alternating with claystones. Of this sequence some 41.3 m could be\r\nconsidered as net. No live hydrocarbons were encountered by the well. Residual\r\noil was found in base Amundsen - top Statfjord Formations, however, cores showed\r\nlow porosity and essentially no net sand. Ex",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}