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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 862,
    "wlbName" : "6/3-2",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 6/3-2 was drilled on the gamma\r\nstructure on an early Permian formed fault block, 1.4 km from the Norwegian/UK\r\nmedian line. The primary objective was to test Jurassic/Triassic sandstones at\r\ndifferent levels for possible hydrocarbon accumulations. Secondary objectives\r\nwere to test Cretaceous porous/fractured limestone/chalk and Rotliegend\r\nsandstone. The prognosed TD was 4325 m. The location was chosen due to the\r\nproximity to mature source rocks and oil/gas discoveries in British waters.\r\nSeismic anomalies indicated shallow gas. Due to this the original planned well\r\nlocation was abandoned and a new location was chosen 500 m to the east.\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 6/3-2 was spudded with the\r\nsemi-submersible installation ROSS Isle 21 November 1985 and drilled to TD at\r\n4091 m in the Early Permian Rotliegend Formation. Some hole problems were\r\nexperienced in the top of the 12 1/4" hole section. 9 5/8" casing was\r\nset close to the Zechstein formation before drilling the 8 1/2" hole into\r\nthe salt. At 3772 m, an over-pressured zone of dolomite/slate was encountered.\r\nIt was anticipated that one had found a "floating lens" enclosed in\r\nthe evaporites. The well started flowing and pressure was increased to 2.05\r\ng/cc in order to stabilise the well. Because of this a 7" liner had to be\r\nset in the middle of the salt. A 6" hole was drilled to base of the\r\nZechstein Formation and a 5" liner was set in order to be able to reduce\r\nmud weight through the Rotliegend sandstone. The well was drilled with\r\nseawater/hi-vis pills/pre-hydrated bentonite through the top sections to 622 m,\r\nwith gypsum/polymer mud from 622 m to top of the salt at 3400 m, and with\r\nSafemul oil based mud from 3400 m to TD. No indication of shallow gas was\r\nencountered at this location. \u003c/p\u003e\r\n\r\n\u003cp\u003eTop Cretaceous came in at 2511 m. There\r\nwere some shows in the Cretaceous limestone/chalk. However, logs, cores and\r\ncuttings showed that the re",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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