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    "wlbNpdidWellbore" : 521,
    "wlbName" : "7121/1-1",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 7121/1-1 was\r\ndrilled on the Loppa High in the northern part of the Tromsøflaket area,\r\noffshore Northern Norway. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe primary\r\nobjective of the 7121/1-1 exploration well was to test the reservoir and\r\nhydrocarbon potential of a possible Early Permian (Artinskian) mounded\r\ncarbonate facies (biohermal build-ups) identified by seismic. Secondary\r\nobjectives were Late Permian carbonates and Early Carboniferous to Devonian\r\nsandstones, Late Carboniferous - Early Permian carbonates, and Triassic\r\nsandstones. Finally, the exploration well was designed to fulfill the license's\r\nobligatory work program which committed the licensees to drill one wildcat well\r\nto test prospects down to rocks of Devonian age or 5000 m, whichever came\r\nfirst. \u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eExploration well\r\n7121/1-1 was spudded on 10 October 1985 in 369 m water depth with the\r\nsemi-submersible installation "Zapata Ugland". Due to NPD winter\r\nseason regulations drilling was stopped at 916 m. Drilling of well 7121/1-1R\r\ncommenced on 19 March 1986 and reached total depth of 5000 m in Late\r\nCarboniferous sediments of the Ørn Formation. The well was drilled with sea\r\nwater and gel down to 1978 m, and with Sea water / gel / polymer from 1978 m to\r\nTD. Lost Circulation Material was used below 3370 m. Triassic rocks were\r\nencountered at 698 m, unconformably underlying 178 meters of Tertiary claystone\r\nand siltstone. The Triassic sediments (2295 m thick) consisted predominantly of\r\nvery fine clastics with minor interbeds of sandstone, stringers of dolomite and\r\nlimestone and traces of coal.\u003c/p\u003e\r\n\r\n\u003cp\u003eFair to poor\r\nhydrocarbon shows were encountered in some thin and tight sandstones of Late\r\nand Middle Triassic age. The only significant hydrocarbon show was encountered\r\nin a 11.5 m thick sandstone bed, between 1932.0 and 1943.5 m, where 18.7 % gas\r\n(C1 & C4) was measured by the gas detectors. The Paleozoic section (Permian -\r\nLate Carboniferous Ørn Formation) was encountered at 2",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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