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    "wlbNpdidWellbore" : 1495,
    "wlbName" : "2/7-22",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 2/7-22 was\r\ndesigned to drill a Late Jurassic prospect as the first commitment well in\r\nlicense 145.The prospect was a structural play defined at an intra-Jurassic\r\nlevel, located to the south-west of the Eldfisk South oil field in the Central\r\nGraben. A number of alternative outcomes were modelled to describe the\r\nuncertainty in the geological model. The most likely outcome predicted, was for\r\na Jurassic non-marine reservoir section. The large vertical relief of the\r\nstructure (550 m) also permitted the possibility of an additional lower\r\n(Permian) reservoir section. An extensive sidewall-coring program was designed.\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 2/7-22\r\nwas spudded 17 May 1990 by the semi-submersible installation Ross Isle and\r\ncompleted 15 October 1990 at a depth of 4750 m in interbedded sandstones and\r\nmudstones of indeterminate pre-Jurassic age. The well thus fulfilled the\r\ngeological commitment. The well was drilled with seawater and hi-vis pills down\r\nto 1092 m, with ester based Petrofree mud from 1092 m to 2970 m, and with\r\nEnviromul oil based mud from 2970 m to TD. No shallow gas was encountered in\r\nthe well. No conventional cores were cut. Due to hard formation sidewall core\r\nrecovery was poor, and for recovered sidewall cores the depths are uncertain\r\ndue to technical problems. The well was a gas discovery having encountered a 14\r\nm pay zone in clean sands of indeterminate age with a hydrocarbon column being\r\nsmaller than prognosed. A gas/water contact was encountered at 4502 m. The\r\ntotal reservoir thickness is 66.5 m. The Late Jurassic Mandal formation came in\r\n218 m deeper than prognosed. One was tentatively trying to date the rocks below\r\nthe Jurassic sequence, but these rocks are classified as indeterminate. The\r\nreservoir rocks are probably an analogue to the Embla alluvial fan complex.\r\nWireline RFT samples were taken at 4494 and 4547 m. The well was permanently\r\nplugged and abandoned as a gas/condensate discovery.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTe",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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