{
  "type" : "Feature",
  "links" : [
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      "rel" : "collection",
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      "title" : "The collection document"
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      "type" : "application/geo+json",
      "title" : "This document as JSON"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "109",
  "properties" : {
    "OBJECTID" : 109,
    "wlbNpdidWellbore" : 111,
    "wlbName" : "34/7-1",
    "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\u003eThe wildcat 34/7-1 was drilled on the\r\nE-structure northeast in block 34/7, on a location ca 9 km south-south west of\r\nthe 34/4-1 Snorre Discovery well in the northern North Sea. The continuation of\r\nthis structure was explored by well 34/4-4. The main objective of 34/7-1 was Late\r\nTriassic sandstones, which proved hydrocarbon bearing in 34/4-1 and 34/4-4. \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\u003eWell 34/7-1 was spudded with the\r\nsemi-submersible installation Vildkat on 9 May 1984 and drilled to TD at 2905 m\r\nin the Late Triassic Lunde Formation. The 26" hole was drilled and logged\r\nfirst as a 17 1/2" pilot hole to 1106 m as a precaution against shallow gas\r\nthen opened up to 26" by using underreamer. Tight spots occurred in the\r\n26" hole section. In the 17 1/2" hole the string got stuck at 1274 m.\r\nThe string had to be backed off and was fished out of the hole. Some tight\r\nspots occurred in this section too. When running the 9 5/8" casing, lost\r\nreturns were experienced three times and the casing was pulled out of the hole.\r\nA velocity log was run, and the well was plugged back to 2640 m by setting two\r\ncement plugs and the 9 5/8" casing was landed at 2632 m. The well was\r\ndrilled with seawater and bentonite down to 1106 m and with polymer/KCl mud\r\nfrom 1106 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Tertiary and Cretaceous sections were\r\nmainly composed of claystones, with sand development in lower the Pliocene and\r\nin the Late Miocene. The Triassic consisted of sandstones alternating with\r\nsiltstones, claystones and minor marl.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eA major unconformity is observed at 2392\r\nm between the Late Triassic and the Lower Cretaceous. Apart from this, four\r\nother unconformities are observed in the well, one in Cretac",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}