{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "60",
  "properties" : {
    "OBJECTID" : 60,
    "wlbNpdidWellbore" : 62,
    "wlbName" : "30/11-3",
    "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 30/11-3 was drilled in the Fensal\r\nsub-basin in an area east of the Frigg and Odin Fields in the North Sea. The\r\nprimary objective was to test Middle Jurassic sandstones of the Brent Group and\r\nEarly Jurassic sandstones of the Statfjord Group in a westward tilted horst block.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well is type well for the Hardråde\r\nFormation and reference well for the Svarte, Tryggvason and Kyrre formations.\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 30/11-3 was spudded with the\r\nsemi-submersible installation Borgny Dolphin on 17 November 1982 and drilled to\r\nTD at 4662 m in the Early Jurassic Statfjord Group. When entering sandstones in\r\nthe Statfjord Group at 4637 m the well kicked, probably due to overpressured\r\ngas. After efforts to stabilise the well the decision was made to abandon the\r\nwell before a full evaluation of the Statfjord Group had been made. The well\r\nwas drilled with spud mud down to 640 m, with KCl/polymer mud from 640 m to\r\n3053 m, and with Drispac/lignosulphonate - gel/Resinex mud from 3053 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 30/11-3 encountered reservoir\r\nquality sands in the Tertiary (Frigg Formation and Heimdal Formation) and in\r\nthe Jurassic (Brent Group and Statfjord Group). Oil saturations were seen in\r\nseveral thin sands in the Brent Group between 3434 m and 4025 m. Core and log\r\nevaluation indicated that these were probably due to residual oil only\r\n(saturations below a cut-off value of 50%). True oil shows were recorded\r\nintermittently only between 3434 m and 3600 m. Possible pay zones with\r\nreasonable porosity and permeability would be thin, with a net of only 13 m\r\nbased on petrophysical evaluation. Log evaluation also indicated high gas\r\nsaturations (up to more than 80%) in the Statfjord Group. However",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}