{
  "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/550?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/550?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/550?f=application/geo+json",
      "rel" : "alternate",
      "type" : "application/geo+json",
      "title" : "This document as application/geo+json"
    }
  ],
  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "550",
  "properties" : {
    "OBJECTID" : 550,
    "wlbNpdidWellbore" : 904,
    "wlbName" : "29/3-1",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 29/3-1 was\r\ndrilled in an area adjacent to several major hydrocarbon discoveries close to\r\nthe UK-Norway median line. The structure is located in the highest part of a\r\nwesterly tilted fault panel and the closure is provided by fault to the North\r\nEast and South and by structural dips westward.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe objectives of\r\nthe well were to test hydrocarbon potential of the Middle Jurassic Brent\r\nsandstones; and to test the reservoir potential of the Dunlin sands.\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 29/3-1\r\nwas spudded 20 may 1986 by Dolphin Services A/S semi-submersible installation\r\nByford Dolphin and completed 15 September 1986 at a depth of 4427 m in the\r\nEarly Jurassic Statfjord Formation. The 17 1/2" hole (756 m to 2252 m) was\r\ndrilled with KCL/polymer fluid. Well section below 13 3/8" casing point\r\n(2252 m) was drilled oil based with Safemul Invert Emulsion mud (80 % base\r\noil). Drilling was delayed due to a destroyed guide block, after that drilling\r\nproceeded without significant problems. The Tarbert Formation was water bearing\r\nwith residual hydrocarbons and minor amounts of gas in the top section. The\r\nlower Ness Formation contained a 150 m hydrocarbon column. The Dunlin Group was\r\nwater bearing. The Statfjord Formation was found tight and water bearing. Two\r\ncores were cut in the Brent sandstones in the interval 3525 m to 3561 m. Five\r\nRFT samples were taken in the Brent Group: 3821.5 m (Ness: oil and water), 3719\r\nm (Ness: oil and gas), 3697.8 m (Ness: oil and gas), 3556.4 m (Tarbert: water\r\nand filtrate), and 3530 m (Tarbert: gas and water). All samples showed\r\nunusually high oil filtrate recovery due to a very deep invasion by the oil\r\nbase mud.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was plugged\r\nand abandoned as a gas and oil discovery.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eFour drillstem tests\r\nwere performed in the Brent Group. \u003c/p\u003e\r\n\r\n\u003cp\u003eDST 1B was performed\r\nin three zones in the Ness Formation over the interval 3802 m to 3822 m. In\r\nthis test no f",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}