{
  "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/316?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/316?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/316?f=application/geo+json",
      "rel" : "alternate",
      "type" : "application/geo+json",
      "title" : "This document as application/geo+json"
    }
  ],
  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "316",
  "properties" : {
    "OBJECTID" : 316,
    "wlbNpdidWellbore" : 321,
    "wlbName" : "15/8-1",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 15/8-1 was drilled west of\r\nthe Sleipner field, ca 2 km from the UK border. The well was designed to test\r\npossible hydrocarbon accumulation in the sandstones of middle Jurassic age.\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 15/8-1 was spudded with the\r\nsemi-submersible installation Glomar Biscay II on 18 July 1981 and drilled to\r\nTD at 4300 m in the Middle Jurassic Fladen Group. Drilling operations were\r\nperformed without significant problems in the 36", 26" and 17 1/2"\r\nholes. Pipe stuck in the 12 1/4" hole at 2254 m and several times in the 8\r\n1/2" hole. Miscellaneous technical problems occurred while drilling the\r\n6" hole and a gas kick was at 4265 m while tripping. The well was drilled\r\nwith seawater and gel down to 500 m and with gypsum mud from 500 m to 2890 m.\r\nLignosulphonate was added from 1570 m, and from 2890 m to TD the gypsum mud was\r\ngradually depleted and replaced with a gel/lignosulphonate mud.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well 15/8-1 proved gas and condensate\r\nin sandstone of Middle Jurassic age. The gas/water contact was indicated at\r\n3698 m from the Formation Multi Tester. Oil shows were recorded from 3065 m to\r\n3075 m in the Hod Formation. Five conventional cores were cut in the interval\r\n3658 m to 3705.5 m in the Hugin Formation. Three samples were attempted taken\r\nduring FMT runs. Due to technical malfunctions only 1 sample (from 3668 m) was\r\nobtained.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 7\r\nJanuary 1982 as a gas/condensate discovery.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eOne drill stem test was performed in the\r\nSleipner formation and three in the Hugin Formation. The procedure of the tests\r\nwas similar; after initial flow and build up the well was flowed for\r\napproximately 660 min. producing gas/condensate. Test no. 4 was only flowed for\r\n480 minutes. CO2 was produced in all tests, in concentrations ranging from 4%\r\nto 15%, and up to 8 ppm H2S was recorded in DST2. Two sets of PVT samples were\r\ntaken ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}