{
  "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/807?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/807?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/807?f=application/geo+json",
      "rel" : "alternate",
      "type" : "application/geo+json",
      "title" : "This document as application/geo+json"
    }
  ],
  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "807",
  "properties" : {
    "OBJECTID" : 807,
    "wlbNpdidWellbore" : 1938,
    "wlbName" : "25/2-15",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 25/2-15 is located in the southern\r\npart of block 25/2, and was designed to recognize the petroleum potential of\r\nthe so-called Jurassic Prospect 1. The main objective of the well was to\r\nexplore the Middle Jurassic Brent sandstones. An optional objective was Early\r\nJurassic Statfjord sandstones, depending on the petroleum results at the Brent\r\nlevel. \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 25/2-15 was spudded with the\r\nsemi-submersible installation West Alpha on 14 November 1992 and drilled to TD\r\nat 3505 m in Middle Jurassic sediments of the Heather Formation. \u003c/p\u003e\r\n\r\n\u003cp\u003eAfter drilling to TD at 3505 m in the 12\r\n1/4" section the drill string was hung off with bit at 13 3/8" casing\r\nshoe, due to bad weather. A long period of bad weather followed with a total of\r\n170 hours WOW. On 13 January 1993, when reaming up the hole to set 9 5/8"\r\ncasing, a fire broke out in the port side engine room. As a consequence of this\r\nthree anchor chains were lost and the rig started to drift. The drill string\r\nwas sheared and the LMRP was disconnected. All unnecessary personnel were\r\nevacuated. The situation was brought under control, but due to the damage\r\noccurring in engine room, it was decided to substitute the rig, pull anchors\r\nand move the rig to Haugesund fjord. The well was drilled with seawater and\r\nhi-vis bentonite sweeps down to 198 m, with bentonite mud from 198 m to 1150 m,\r\nand with gypsum polymer mud treated with 5% polyglycerol from 1150 m to 3505 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eAll geological results from the well are\r\ngiven in the 25/2-15 R2 history.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was suspended with the drill\r\nstring fallen in the hole and shear rams closed. The hole was full of 1.27 SG\r\nmud. West Alpha left location on 19 January 1993.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eNo drill stem test was performed in the\r\nwell.\u003c/p\u003e\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}