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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 2072,
    "wlbName" : "16/1-4",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\u003cp\u003eThe objectives of\r\nexploration well 16/1-4 were to test Paleocene sandstones (Heimdal Formation)\r\nin prospect C and Eocene sandstones (Grid Formation) in prospect D. Prospect C\r\nwas the main target. Oil was the prognosed hydrocarbon type. It was expected to\r\npenetrate a pre-Cretaceous sedimentary sequence, although the well location was\r\nnot optimal for a test of the pre-Cretaceous. \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 16/1-4\r\nwas spudded with the semi-submersible installation "Deepsea Bergen"\r\non 17 March 1993 and drilled to TD at 2010 m, 146 m into basement rocks. The\r\nwell was drilled with spud mud / hi-vis pills down to 324 m and with "ANCO\r\n2000" mud from 324 m to TD. Well 16/1-4 penetrated sedimentary rocks of\r\nQuaternary, Tertiary, and Cretaceous ages, in addition to basement rocks of\r\nunknown age. No pre-Cretaceous sediments were present in the well. In the\r\nTertiary, reservoir quality sandstones were present in the Miocene and the\r\nOligocene (Utsira and Skade Formations) and in the Eocene Grid Formation. The\r\nGrid sandstones were thinner than expected. No sandstones were developed in the\r\nPaleocene (Rogaland Group) at the well location. The carbonates in the Shetland\r\nGroup were dated to be of Early Paleocene, Danian age. The lower Cretaceous\r\nsediments in well 16/1-4 are 4 m thick (1860 m -1864 m) and consist of clay\r\nstone/marls and immature sandstones with grains of igneous rocks similar to the\r\nbasement rocks below. These sediments are dated to be of Early Aptian age and\r\nhave been identified as the Sola Formation of the Cromer Knoll Group. The\r\nbasement rocks consist mainly of brecciated igneous rocks. No hydrocarbon shows were observed in the Grid Formation sandstones.\r\nGas-condensate was encountered in the upper part of the drilled basement section.\r\nCores were cut in the Eocene Grid Formation and in the Hordaland Group shales\r\nbetween upper and lower Grid Formation (cores 1-3), in the Paleocene Balder-\r\nand Sele Formations (",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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