{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "532",
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    "OBJECTID" : 532,
    "wlbNpdidWellbore" : 875,
    "wlbName" : "34/4-6",
    "wlbHistory" : "\r\n\r\n\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\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 34/4-6 was drilled in the northern\r\npart of the Snorre Field. The main objectives were to test the northern outline\r\nof the field and to confirm the oil/water-contact and reservoir characteristics\r\nof the Upper Lunde Formation. The stratigraphy and reservoir characteristics of\r\nthe Middle and Lower Lunde together with the Lomvi Formations were secondary\r\nobjectives. Prognosed depth was at 3236 m in Triassic rocks. \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\u003eAppraisal well 34/4-6 was spudded with\r\nthe semi-submersible installation Vinni on 31 December 1995 and drilled to TD\r\nat 3282 m in the Late Triassic Teist Formation. The 26" section was\r\nhampered by bad weather and large parts of the period from the evening of 9\r\nJanuary up to 18 January was spent as WOW. When reaching 740 m the bad weather\r\nalso made it necessary to disconnect the riser from the well head. Technical\r\nproblems when attempting to re-latch the pin connector back on to the well head\r\nresulted in the remaining section down to TD at 920 m in the 26" section being\r\ndrilled with no returns to the surface. The well was drilled with spud mud down\r\nto 530 m, with gel mud from 530 m to 920 m, with gypsum/polymer mud from 920 m\r\nto 2345 m, and with gel mud from 2345 m to TD. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eApart from the sandy Utsira Formation of\r\nLate - Middle Miocene to Pliocene age (1127.5 - 1239 m) and a sandstone unit\r\nwithin the Hordaland Group of Early Oligocene age (1358.5 - 1387 m), the upper\r\nsection down to the Base Cretaceous Unconformity proved mainly claystones. No\r\nJurassic rocks were encountered in the well. The Triassic Hegre Group consists\r\nof sandstones with minor shales and siltstones down to TD of the well. The target\r\nhorizon, the Upper Lu",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}