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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1879,
    "wlbName" : "35/11-6",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eBlock 35/11 is located on the\r\nnorthwestern edge of the Horda Platform, on the Lomre and Uer Terrace. The\r\nNorthern part of the Viking Graben is immediately to the Northwest. The block\r\nlies due north of the Troll Field. The well was drilled to appraise the 35/11-2\r\nDiscovery, which proved oil and gas in the Middle Jurassic and had shows in\r\nLate Jurassic Intra Heather Sandstones. The primary objective was to evaluate\r\nthe Middle Jurassic sandstones of the Brent Group, and the location was chosen\r\nsuch that the OWC of the Tarbert Formation could be identified. The secondary\r\nobjective was the Late Jurassic Intra Heather Sandstones, which were thought to\r\nbe much thicker than in the 35/11-2 location. \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 35/11-6 was spudded with the\r\nsemi-submersible installation Sovereign Explorer on 30 January 1992 and drilled\r\nto TD at 3990 m in the Early Jurassic Statfjord Formation. The well was drilled\r\nwith seawater and viscous pills to 985 m and with KCl/polymer mud from 985 m to\r\nTD. In the Late Jurassic, sandstones were found in the Upper Heather and\r\nSognefjord Formations. In the Upper Heather Formation a very porous and\r\npermeable sandstone contained 1.2 m of oil. A core was taken at the base of\r\nthis interval and an RFT sample at 3072.7 m recovered gas and heavy oil. RFT\r\npressure and sampling data indicated that the zone had excellent permeability\r\nin places. The pressure data did not support communication with 35/11-2, and a\r\nlarge sampling pressure draw down indicated a limited accumulation. The\r\nsandstone in the Sognefjord Formation, although thicker, was much less porous\r\nand contained only traces of residual oil. Two cores were taken in this\r\nFormation and an RFT at 3174.5 m recovered only traces of hydrocarbons. In the\r\nMiddle Jurassic Brent Group, shows were observed in cores but these were\r\nprobably residual as petrophysical results showed only low oil saturations. The\r\nreservoir quality of the sandstones was generally p",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}