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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 426,
    "wlbName" : "34/10-3",
    "wlbHistory" : "\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eGeneral\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 34/10-3 was the second well drilled\r\nin the Delta closure in block 34/10\u003c/span\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003cspan\r\nlang=EN-US\u003ein the Northern North Sea\u003c/span\u003e\u003cspan lang=EN-GB\u003e.\u00A0 In the first\r\nwell, 34/10-1, hydrocarbons were tested and proven to be present throughout the\r\nBrent sand. \u003c/span\u003e\u003cspan lang=EN-US\u003eThe primary objective of the well \u003c/span\u003e\u003cspan\r\nlang=EN-GB\u003e34/10-3 \u003c/span\u003e\u003cspan lang=EN-US\u003ewas to test sandstones of Middle\r\nJurassic age. Secondary objectives were sandstones of Early Jurassic and Late\r\nTriassic age.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eOperations and results\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell was spudded with the\r\nsemi-submersible installation Norskald on 14 March 1979 and drilled to TD at 2802 m. When coring for core no 10\r\nthe core jammed at 2512.5 m and the core head matrix was left in the hole.\r\nFishing commenced for 3 and a half day until most of it was recovered.\r\nOtherwise the operation proceeded without any significant problem. The well was\r\ndrilled with seawater/gel down to 587 m and with Chrome Lignosulphonate mud\r\nfrom 587 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eOil shows (yellow fluorescence, cut and\r\n"dead oil stain" were recorded at 1410 - 1470 m at the base of the\r\nHordaland Group. Stronger shows were seen from 1814 m in the Shetland Group m\r\nand down to top Brent reservoir. Oil in the mud was observed at 1814 m. The Middle\r\nJurassic Brent Group was encountered at 1892 m, directly underlying a thin Albian-Aptian\r\nage Cromer Knoll section. The Brent Group was oil bearing down to the oil water\r\ncontact at 1972 m. Oil shows on cores continued down to 1997 m. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eEight cores were cut in succession from\r\n1904 m to 2025 m in the Brent Group, and one core was cut from 2467 m to 2478.8\r\nm in the Early Jurassic Amundsen Formation. No wire line fluid sample",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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