{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "835",
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    "wlbNpdidWellbore" : 2049,
    "wlbName" : "7128/4-1",
    "wlbHistory" : "\r\n\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 7128/4-1 is located in the Finmark\r\nØst area. The main objective for the well was to test the potential for\r\nhydrocarbons in Visean sandstone on the "Omd Vest" structure. The\r\nsecondary objective was to test the hydrocarbon potential, reservoir and trap\r\npossibilities of the Asselian - Sakmarian carbonates and the upper Permian\r\nsuccession.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eOperations\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eExploration well 7128/4-1 was spudded\r\nwith the semi-submersible installation "Ross Rig" on 17 December 1993\r\nand drilled to TD at 2530 m in pre-Devonian basement rocks, 27 m below base of\r\nthe Early Carboniferous Soldogg Formation. The well was drilled with seawater\r\nand bentonite / CMC EHV spud mud down to 770 m and with GYP/PAC mud from 770 m\r\nto TD. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well penetrated Quaternary, Tertiary,\r\nTriassic, Permian, and Carboniferous sediments. The Cretaceous and Jurassic\r\nsequences were not present. Gas chromatography readings during drilling and log\r\nevaluation indicated gas saturation in the primary target. The sandstone was\r\nvery tight and therefore not production tested. However, the Late Permian\r\nspiculite was partly very porous and permeable with a gas cap over moveable\r\noil. A GOC was indicated at 1575 m. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eA total of five conventional cores were\r\ncut in the well 1574 m t 1577 m (Late Permian Røye Formation), 1814 m to 1837 m\r\n(Isbjørn and Ørn Formations of\u00A0 Early Permian age), 1837 m to 1865 m (Early\r\nPermian Ørn Formation), 2362 m to 2389.47 m (Early Carboniferous Soldogg\r\nFormation), and 2526 m to 2530 m (Pre-Devonian basement). \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eFMT wire line samples were obtained from three\r\nlevels: 1572.7 m, 1576 m, and 1588.8 m. In the FMT samples taken at 1572.7 m,\r\nthe 10-",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}