{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "778",
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    "OBJECTID" : 778,
    "wlbNpdidWellbore" : 1840,
    "wlbName" : "6507/2-2",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe Dønna Terrace forms a large down\r\nfaulted block on the western margin of the Trøndelag Platform, situated between\r\nthe Nordland Ridge and the Vøring Basin. The structure to be tested by 6507/2-2\r\nis situated on the western edge of the Dønna Terrace. This structure was\r\nearlier tested by well 6507/2-1, which however left a considerable untested\r\ncolumn up-dip from the well position. The main target of the well was the\r\nJurassic reservoirs of Garn, Ile, and Tilje Formation. The secondary objectives\r\nwere to test the prospectivity of the Cretaceous sands in the Lysing and Lange\r\nFormations or at least to obtain stratigraphic information from these\r\nformations.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 6507/2-2 was spudded with\r\nthe semi-submersible installation Polar Pioneer on 21 October 1991 and drilled to TD at 3958 m in Early Jurassic sediments of the Åre Formation. The\r\nwell had 37% downtime due mainly to repeated occurrences of stuck drill pipe.\r\nDrilling went relatively smooth down to setting of the 9 5/8" casing shoe\r\nat 2760 m. After having cut two cores in the 8 1/2" section the well was\r\nshut in due to an influx at 3336 m. The well was killed with increased mud\r\nweight, but the pipe was found to be stuck. The pipe could not be freed and was\r\ncut at 3175 m. The well was then plugged back and sidetracked from 2989 m and\r\ndrilled to 3326 m with minor problems. A 7" liner was run and set with\r\nshoe at 3324 m and the 6" section was then drilled to 3737 where parts of\r\nthe bit sub was lost in the hole. This led to 20 days lost while attempting to\r\nrecover the fish and sidetrack past the fish. Eventually the fish was partly\r\nrecovered and drilling commenced to TD. The well was drilled with seawater and\r\nhi-vis pills down to 685 m and with a KCl/polymer mud from 685 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eOil shows were recorded on sandstone\r\nlaminae in the interval 2208 ? 2750 m in the Shetland Group. The Cretaceous\r\nLysing Formation was encountered at 2817.5 m",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}