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    "wlbNpdidWellbore" : 901,
    "wlbName" : "16/10-1",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 16/10-1 was the first well drilled\r\nin block 16/10 operated by Norsk Agip. Among the various structures defined\r\nwithin block 16/10, the one called "Alpha", located in the\r\nsouthwestern area, was selected as the first one to be drill. Main reason for\r\nthis choice was the presence of a deep basin (Witch Ground Graben) to the south\r\nwest of the block, where the Viking Group shales was believed to have generated\r\nhydrocarbons since Cretaceous time. The tectonic evolution of the structure is\r\nprobably of pre-Cretaceous age, well before hydrocarbon generation started.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe purpose of the well was to explore\r\nall main reservoirs down to Triassic. The primary targets were the Jurassic and\r\nTriassic sandstone units, expected at 2850 m and 2980 m, respectively.\r\nPrognosed TD was at 3175 m.\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 16/10-1 was spudded 25 May\r\n1986 by Dyvi Offshore A/S semi-submersible rig Dyvi Stena and drilled to TD at\r\n3151 m in the Late Permian Zechstein Group. The well was drilled with Seawater\r\nand hi-vis pills down to 514 m, with KCl/Polymer mud from 524 m to 2565 m, and\r\nwith lignosulphonate mud from 2565 m t TD. Drilling proceeded without any\r\nsignificant problems. Electrical logs were run already in the 26" section\r\nfrom 195 m. No shallow gas was encountered. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe Quaternary/Tertiary sequence, 2280.5\r\nm thick, is represented by Nordland, Hordaland and Rogaland groups and is\r\npredominantly constituted by marine claystones. A 513.5 m Cretaceous section\r\nrepresented by the limestones of the Chalk Group and by the reddish marl and\r\ncalcareous shales of the Cromer Knoll Group was penetrated. It was nearly a\r\ncomplete sequence except for two possible hiatus: the first in the Late\r\nSantonian and the second between the Cenomanian and the Aptian-Albian. The base\r\nCretaceous Unconformity overlies the Late Jurassic shales of the Viking Group\r\n(top at 2794 m), which proved to have a thickness of 211 m. The top of the\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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