{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 849,
    "wlbName" : "30/6-17 R",
    "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 30/6-17 was drilled on the Alpha\r\nstructure on the western side of the Oseberg Field in the northern North Sea.\r\nThe structure is a tilted and rotated fault block with a Jurassic sequence\r\ndipping towards the east. The main objective was to prove hydrocarbons in the\r\nStatfjord Formation. Prognosed depth was 200 m into the Statfjord Formation\r\nwith TD at ca 2682 m. Well 30/6-17 was drilled by Vildkat Explorer to a depth\r\nof 615 m where it was temporary abandoned due to technical problems. The\r\nre-entry 30/6-17 R was made to fulfil the original objectives.\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 30/6-17 was re-entered with\r\nthe semi-submersible installation Treasure Hunter on 14 August 1985 and drilled\r\nto TD at 2650 m in the Early Jurassic Statfjord Formation. The well was drilled\r\nwithout significant technical problems, but about one third of the time was\r\ncounted as downtime. The main contribution to the excessive downtime was waiting on\r\nweather. The well was drilled with KCl/polymer mud from 615 m to 2409 m and\r\nwith NaCl/polymer mud from 2409 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eOil shows were recorded on limestone and\r\ndolomite stringers in the Tertiary and Late Cretaceous, beginning at 1650 m and\r\nall the way down to near BCU at 2290 m. These oil shows were most frequent, and\r\nstrongest, in the interval 1750 to 1810 m in the lower part of the Tertiary\r\nHordaland Group. Two gas bearing sandstones units, possibly reworked Brent\r\nGroup, were found at the BCU (2296 - 2300 m and 2303 - 2308 m). \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe prognosed target for the 30/6-17 well\r\nwas the Statfjord Formation. The well was, however, drilled ca 600 m east of\r\nthe proposed location at a structurally down flank position. At this position\r\nalso the Cook Formation was p",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}