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    "wlbName" : "9/4-3",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 9/4-3 was drilled on a salt-induced,\r\nanticlinal structure in the Egersund Basin in the North Sea, 17 km to the east\r\nof the 9/4-1 location. The primary objective was the Middle Jurassic sandstone,\r\nbut also Triassic sands were considered prospective. Danian and Late Cretaceous\r\nchalks were seen as secondary objectives.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well is Type Well for the Jurassic\r\nBryne, Sandnes, Tau, and Sauda Formations in the Norwegian-Danish Basin.\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 9/4-3 was spudded with the\r\njack-up installation Ocean Tide on 14 July 1972 and drilled to TD at 2682 m in\r\nLate Triassic sediments of the Skagerrak Formation. The hole was drilled\r\nwithout significant drilling problems, although heaving shales in the lower\r\nTertiary caused some difficulties. After drilling out the 20" casing shoe\r\nat 404 m the drilling fluid was changed from a gelled seawater gel to a\r\nlignosulphonate seawater mud system, which was used to TD. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe only sandy Formation encountered\r\nabove the Jurassic level was the Late Paleocene Fiskebank Formation at 1150 m,\r\nwith a 50 m thickness. A complete sequence of Early Cretaceous stages was\r\npresent between 1967 and 2250 m. The Kimmeridge section also appeared complete\r\nand represented entirely by an argillaceous succession. No sandy facies of\r\nEarly Kimmeridgian/ Late Oxfordian was detected. The Bathonian-Bajocian\r\nsandstone/shale sequence between 2490 m to 2613 m (the Vestland Group) is\r\ncomparable with adjacent wells in the area although clearly thicker in the\r\ncurrent section. No oil shows were recorded in any section of the well during\r\ndrilling and the logs confirmed that the Jurassic and Triassic sections were\r\nwater wet. \u003c/p\u003e\r\n\r\n\u003cp\u003eFrom organic geochemical analyses source\r\nrocks were found in shales of the Late Jurassic Tau and Egersund Formations,\r\nand the coals of the Middle Jurassic. The 37 m thick Tau Formation at 2400 m\r\ncontained an average kerogen type II/III with TOC around 5% and has a r",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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