{
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  "LayerName" : "Wellbore - History",
  "id" : "718",
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    "wlbNpdidWellbore" : 1600,
    "wlbName" : "35/9-2",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 35/9-2 was designed to drill on the\r\nA-Structure in block 35/9 which is located in the northern part of the Horda\r\nPlatform, in the footwall of the Sogn Graben boundary fault system. The well\r\nwas drilled as a combined appraisal/wildcat well. The primary objective of the\r\nwell was to appraise the hydrocarbon potential in the Late Jurassic Sognefjord\r\nand Fensfjord Formations, found oil and gas bearing in the 35/9-1 well.\r\nSecondary objective was to test the Middle -Early Jurassic sequence. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe total depth of the well was prognosed\r\nto 2830 m RKB, approximately 30 m into the Caledonian basement.\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/Appraisal well 35/9-2 was spudded\r\nwith the semi-submersible installation Vildkat Explorer on 1 January 1991 and\r\ndrilled to TD at 2885 m in Caledonian basement. Due to hole angle problems, the\r\nwell had to be re-spudded twice before drilling proceeded. No shallow gas or\r\nboulders were observed while drilling. In order to penetrate the target within\r\nthe given tolerances, a kick-off was made at 1039 m. This resulted in a\r\ndeviation of up to 14 deg. at 1287 m and TVD 8 m less than measured depth at\r\nfinal TD. The well was drilled with seawater and hi-vis pills down to 1018 m\r\nand with KCl/polymer from 1018 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well encountered oil and gas bearing\r\nsandstones from 2095 m in the Late Jurassic reservoirs. The gas/oil contact was\r\nfound at 2324 m and oil was found down to 2341 m in the Fensfjord "C"\r\nFormation. Net pay gas zone was calculated to 171.26 m and net oil pay zone\r\ncalculated to 13.13 m. The oil/water contact was not seen, but from\r\nextrapolation of RFT pressure gradients the OWC was estimated at 2367 m in the\r\nFensfjord Formation. The best reservoir sand was found in the Sognefjord\r\nFormation. The Middle and Early Jurassic formations were penetrated and found\r\nwater bearing. Above the Late Jurassic reservoirs only two weak shows were\r\nrecorded in cuttings from thin sandstone stringers ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}