{
  "type" : "Feature",
  "links" : [
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      "rel" : "collection",
      "type" : "application/geo+json",
      "title" : "The collection document"
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    {
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      "rel" : "self",
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      "title" : "This document as JSON"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "379",
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    "wlbNpdidWellbore" : 384,
    "wlbName" : "30/7-1",
    "wlbHistory" : "\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 30/7-1 was drilled in the eastern\r\npart of the East Shetland Basin in the North Sea. The well location is due west\r\nof the Oseberg Field and ca 3.5 km from the UK Border. The primary objective was\r\nto investigate structural closure at Eocene and Paleocene with possible sand\r\ndevelopment.\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 30/7-1 was drilled with the\r\nsemi-submersible installation Polyglomar Driller. Polyglomar Driller was\r\naccepted in Verdal on June 28, and left for its first location on June 30, 1975\r\nat 1500 hrs. The rig was on location ready to spud on July 4, after a period of\r\n4 days for movement to location and for anchoring. During the drilling of the\r\n36" hole the drilling template tilted and the entire assembly had to be\r\npicked up. The rig was moved 50 ft due east and a new spudding attempt was made\r\non July 5, 1975. Drilling then proceeded without significant problems to 1007 m,\r\nwhich became TD of the well. While pulling out of the hole to set the 13\r\n3/8" casing the pipe stuck in the hole with the bit at 420 m. Numerous\r\nattempts to free the pipe were unsuccessful and it was decided to abandon the\r\nwell. The well was drilled with seawater/sweeps and gel from surface to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe penetrated sediments are interpreted\r\nas recent to Miocene in age.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo logs were run in the well. No cores\r\nwere cut and no wire line fluid samples were taken. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eDuring abandonment the drilling template was\r\nfound to be stuck and the attempts to recover it were unsuccessful. Divers were\r\njumped to inspect the drilling template and they reported the template had sunk\r\n10 ft below the sea bed. Permission was obtained to fill the cavity above the\r\nba",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}