{
  "type" : "Feature",
  "links" : [
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      "rel" : "collection",
      "type" : "application/geo+json",
      "title" : "The collection document"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "3",
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    "wlbNpdidWellbore" : 4,
    "wlbName" : "30/6-12",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe appraisal well 30/6-12 was drilled in\r\na down flank position on the Alpha block east of the 30/6-1 Oseberg Discovery\r\nwell, which tested gas in the Middle Jurassic Brent Group. The main objectives\r\nof the well were to confirm the reserves of hydrocarbons, to prove oil in the\r\nEtive Formation, to define and refine the geological model for the Alpha\r\nstructure, to obtain core from the Brent Group, and to do a water injection\r\ntest in the oil zone. The well was planned to be drilled 50 m into the Drake\r\nFormation to a total depth of 2764+/- 50 m.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 30/6-12 was spudded with the semi-submersible\r\ninstallation Treasure Seeker on 20 February 1983. Drilling operations went\r\nwithout significant problems down to 615 m. The 20" casing was set with\r\nshoe at 600 m. During the subsequent landing of the BOP on the well head, the\r\nball joint parted, and the BOP fell down on the wellhead. The wellhead was so\r\nbadly damaged that the well had to be abandoned: Final TD of the well thus\r\nbecame 615 m in Pliocene sediments; prospective depth was not reached.\u003c/p\u003e\r\n\r\n\u003cp\u003eTop Pliocene was encountered at 350 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eNo cores were cut and no wire line fluid\r\nsamples were taken.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 9 March 1983 as a junk well. Replacement well 30/6-13 was spudded two days later on a\r\nlocation ca 40 m to the south-west of 30/6-12\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.\u003c/p\u003e\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}