{
  "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/129?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/129?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/129?f=application/geo+json",
      "rel" : "alternate",
      "type" : "application/geo+json",
      "title" : "This document as application/geo+json"
    }
  ],
  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "129",
  "properties" : {
    "OBJECTID" : 129,
    "wlbNpdidWellbore" : 131,
    "wlbName" : "25/2-8",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe appraisal well 25/2-8 was drilled on\r\nthe East Frigg Field. The main objectives of the well were to obtain a better\r\nestimation of the gas reserves on East Frigg and good pressure data in both the\r\nFrigg sand and the Paleocene sand. To achieve better knowledge about the\r\npetrophysical characteristics of the different reservoirs, it was decided to\r\ncore the Frigg sand, the shaly member, the tuff zone and the Paleocene sand.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was spudded with the drill ship\r\nLe Pelerin on 18 June 1984 and drilled to TD at 2380 m in the Lower Paleocene\r\nLista Formation. Problems due to tight hole occurred in the 12 1/4" hole\r\nsection. The pipe got stuck at 1397 m, but was worked free. Problems pressure\r\ntesting the BOP occurred with hole depth at 1745 m. A cement plug was set from\r\n1000 m to 890 m due to the BOP problems. The core barrel was lost in the hole\r\nwhen pulling out of the hole with core no 9. The fish was recovered. The well\r\nwas drilled using a water-based mud. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe Frigg sand was reached as prognosed\r\nat 1917.5 m. This formation is 283 m thick with a 48.5 m hydrocarbon bearing\r\ncolumn: gas from 1917.5 m to 1957 m and oil from 1957 to 1966 m. Below this\r\nlevel was 18 m of residual oil. Shows were detected on cores and cuttings down\r\nto 2040 m. Balder formation (Paleocene) was reached at 2201 m with several\r\nIntra Balder Formation Sandstones. RFT pressure measurements in the Frigg sand\r\nand Intra Balder Formation Sandstone indicated that there is no direct fluid\r\ncommunication between the two formations. RFT segregated fluid samples were\r\nrecovered from 2259 m in Intra Balder Formation Sandstone and at 1956.7 m and\r\n1993 m in the Frigg Formation. The Intra Balder Formation Sandstone sample and\r\nthe deeper Frigg sample recovered only water and mud filtrate and no gas, while\r\nthe upper Frigg Sample recovered mud filtrate with traces of oil and about one\r\nlitre of gas. Nine cores were cut, seven in the Eocene and two in",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}