{
  "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/344?f=json",
      "rel" : "self",
      "type" : "application/geo+json",
      "title" : "This document as JSON"
    },
    {
      "href" : "https://factmaps.sodir.no/api/rest/services/Factmaps/FactMapsWGS84/OGCFeatureServer/collections/254/items/344?f=text/html",
      "rel" : "alternate",
      "type" : "text/html",
      "title" : "This document as text/html"
    },
    {
      "href" : "https://factmaps.sodir.no/api/rest/services/Factmaps/FactMapsWGS84/OGCFeatureServer/collections/254/items/344?f=application/geo+json",
      "rel" : "alternate",
      "type" : "application/geo+json",
      "title" : "This document as application/geo+json"
    }
  ],
  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "344",
  "properties" : {
    "OBJECTID" : 344,
    "wlbNpdidWellbore" : 349,
    "wlbName" : "25/1-3",
    "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 25/1-3 was drilled to appraise the eastward\r\nextension of the 25/1-1 Frigg Discovery on the Frigg Ridge in the North Sea. The\r\nprimary objective was to test the Eocene sandstones that were gas bearing in\r\nwell 25/1-1.\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\u003eAppraisal well 25/1-3 was spudded with\r\nthe semi-submersible installation Pentagone 81 on 14 November 1971 and drilled\r\nto TD at 2872 m in the Late Cretaceous \u00A0Shetland Group. The well was drilled\r\nwith seawater down to 405 m and with a seawater/LFC mud from 405 m to TD. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe target Eocene sandstones (Frigg\r\nFormation) was penetrated at 1952 m. The gross thickness was 217 m and the N/G\r\nwas 0.82 with porosities ranging from 28 to 33%. It was gas bearing down to the\r\nGOC at 1973 m and oil bearing down to the OWC at 1982.5 m. Good oil shows on\r\ncores were recorded throughout the hydrocarbon-bearing reservoir. Weaker oil\r\nshows on cores were described ("fluo but salty taste") below the OWC.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThree cores were cut from 1951 to 2005 m\r\nin the Frigg reservoir. Total recovery for these three cores was 42.25 m (78.2%\r\nrecovery). A fourth core was cut from 2563 to 2568 m with 50% recovery. FIT\r\nfluid samples were attempted at 2550.5 m and 2576.3 m but only mud and filtrate\r\nwas recovered.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 27\r\nJanuary 1972 as an oil and gas appraisal well\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\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eSix drill stem tests were conducted. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eDST 1, 2 and 3 tested the interval 1985\r\nto 1987 m. All three tests produced water.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}