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    "wlbNpdidWellbore" : 1138,
    "wlbName" : "7219/9-1",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 7219/9-1 is located in the Bjørnøya\r\nSør area between the Veslemøy High and the Polheim Sub-platform. The main\r\ntarget in the well was the reservoir and hydrocarbon potential of Early-Middle\r\nJurassic sandstones. Late Triassic sandstone of the Snadd Formation was a\r\nsecondary target. The wildcat well should also provide good seismic tie and\r\ngain velocity information to enable more detailed mapping of the area. It\r\nshould further provide maximum amounts of information on source, seal and\r\nreservoir intervals. The well was positioned to leave a minimum of untested\r\nreserves up-dip with respect to the primary objective.\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 7219/9-1 was spudded with\r\nthe semi-submersible installation Polar Pioneer on 17 November 1987 and drilled\r\nto TD at 4300 m in the Triassic Snadd Formation. The hole was drilled without\r\nriser to the 20" casing depth. It was drilled to 1625 m without problems\r\nwhen loss of drilling mud occurred. The hole was stabilised, logged, sidewall\r\ncores were cut, and it was cemented. During cementing there were problems in\r\nthe top hole with the BOP and permanent guide base. Upper part of the 30"\r\nsection was cemented. Coring equipment did not get past dog leg at 2208 m.\r\nAttempts to open the hole were made but the equipment got stuck. Fishing was\r\nunsuccessful. A cement plug was set from 2185 m to 2004 m, and the hole was\r\nsidetracked at ca 2078 m. Further drilling to TD went without significant\r\nproblems. The well was drilled with seawater and hi-vis pills down to 718 m and\r\nwith KCl / polymer mud from 718 m to 2723 m. From 2723 m the KCl was allowed to\r\ndeplete naturally and the well was drilled with a polymer mud to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eTop reservoir, Stø Formation, was\r\nencountered from 1950.5 m to 2062 m with 99 m net sand of 17.8% average\r\nporosity. Nordmela Formation was penetrated from 2062 m to 2205.5 m with 59.5 m\r\nnet sand with 16.5 % average porosity. The Tubåen Formation from 2205.5 m to\r\n2305 m ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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