{
  "type" : "Feature",
  "links" : [
    {
      "href" : "https://factmaps.sodir.no/api/rest/services/Factmaps/FactMapsWGS84/OGCFeatureServer/collections/254/items?f=application%2fjson",
      "rel" : "collection",
      "type" : "application/geo+json",
      "title" : "The collection document"
    },
    {
      "href" : "https://factmaps.sodir.no/api/rest/services/Factmaps/FactMapsWGS84/OGCFeatureServer/collections/254/items/383?f=json",
      "rel" : "self",
      "type" : "application/geo+json",
      "title" : "This document as JSON"
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    {
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      "rel" : "alternate",
      "type" : "text/html",
      "title" : "This document as text/html"
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      "title" : "This document as application/geo+json"
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  ],
  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "383",
  "properties" : {
    "OBJECTID" : 383,
    "wlbNpdidWellbore" : 388,
    "wlbName" : "30/7-5",
    "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 30/7-5 was a replacement of the well\r\n30/7-4 which was lost due to "twist off" of the drill pipe. The well is\r\nlocated in the eastern part of the East Shetland Basin in the North Sea. The\r\nwell location is due west of the Oseberg Field and ca 2.5 km from the UK\r\nBorder. The main objective of the well was to test Middle and Early Jurassic sandstones\r\n(Brent Group and Statfjord Formation) Secondary objectives were possible lower\r\nCretaceous carbonate development, and possible Late Jurassic sandstones.\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\u003eThe semi-submersible installation\r\nPolyglomar Drilling was skidded over from the junked 30/7-4 well to the\r\nposition for 30/7-5 by regulating the length of the anchor chains. Well 30/7-5 was\r\nspudded with on 5 February 1977 and drilled the 26" section to TD at 805 m\r\nin Miocene sediments. When running the 20" casing, the string parted and\r\n18 joints of casing were left in the hole. Attempts to catch the fish failed\r\nand the well was given up. The well was drilled with seawater and gel.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo cores were cut, no logs were run, and\r\nno wire line fluid samples were taken.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 13\r\nFebruary 1977 as a junk well, and the rig was prepared for spudding replacement\r\nwell 30/7-6.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eTesting\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo drill stem test was performed.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}