{
  "type" : "Feature",
  "links" : [
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      "rel" : "collection",
      "type" : "application/geo+json",
      "title" : "The collection document"
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      "title" : "This document as JSON"
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      "type" : "text/html",
      "title" : "This document as text/html"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "108",
  "properties" : {
    "OBJECTID" : 108,
    "wlbNpdidWellbore" : 110,
    "wlbName" : "30/6-15",
    "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\u003eWell 30/6-15 was drilled on the Gamma\r\nNorth structure west of the Oseberg Alpha structure. Gamma North is a NNW-SSE\r\ntrending fault block down-faulted to the adjacent Alpha structure. The primary\r\nobjective was to find hydrocarbon accumulations in the Statfjord Group. The\r\nsecondary objective was to test the hydrocarbon potential in the Cook\r\nFormation. The total depth of the well was planned ca 270 m into the Triassic\r\nat a depth of ca 3950 m, corresponding to ca 3200 m TVD.\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\u003eWildcat well 30/6-15was spudded with the\r\nsemi-submersible installation Treasure Seeker on 2 May 1984 and drilled\r\ndeviated to TD at 3972 m (3200 m TVD) at a position ca 2180 meters west of the\r\nsurface position. Operations suffered from comparatively much down time due to\r\nhole problems and equipment repairs. The 8 3/8" and 6" sections in\r\nparticular suffered hole problems and difficult logging. The well was drilled\r\nwith spud mud down to 195 m, with gel/sea water from 195 m to 617 m, with\r\nSafeMul oil based mud from 617 m to 3005 m, and with NaCl/polymer mud from 3005\r\nm to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Etive Formation (2884 - 2902 m, 2358\r\n- 2372 m TVD) truncated by Cretaceous strata was found water bearing.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo Cook Formation reservoir was\r\nencountered. The Statfjord Formation (3241 - 3548 m, 2641.5 -2878.5 m TVD)\r\nsandstones were found gas bearing down to 3313 m (2697 m TVD), and oil bearing\r\ndown to 3348 m (2723.5 m TVD). An oil/water transition zone is seen down to\r\n3359 m MD (2732 m TVD). The lithology of the hydrocarbon bearing interval was\r\npredominantly sandstones with some interbeds of claystones/shales. Net pay in\r\nthe gas zone was calculated on logs to 67.4 m giving a net to gross ratio of\r\n0.94. Ne",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}