{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1028,
    "wlbName" : "33/9-13 S",
    "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 33/9-13 S was drilled on the\r\nStatfjord Nord Field on the Tampen Spur area in the North Sea. The primary\r\nobjective was to prove oil in the Brent Group to the northeast of the 33/9-8\r\ndiscovery well. Secondary objective was to test the Statfjord Group in a\r\nposition up-dip of the 33/9-8 location.\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 33/9-13 S was spudded with the semi-submersible\r\ninstallation Ross Isle on 14 October 1987 and drilled to TD at 3077 m in the\r\nEarly Jurassic Statfjord Group. The well location was moved ca 300 m to the south-southwest\r\nto avoid a potential shallow gas zone at 381 m. The well was deviated back to\r\nthe original target position with maximum deviation 34.3° at 1739 m. Shallow\r\ngas was encountered at 399.5 m, 399.9m, 404.5 m, and 547 m. No significant\r\nproblem was encountered in the operations. The well was drilled with seawater\r\nand hi-vis bentonite down to 398 m, with gypsum/polymer mud from 398 m to 2378\r\nm, and with lignosulphonate/bentonite mud from 2378 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Brent Group, Rannoch Formation was\r\nencountered at 2726 m and was completely oil filled down-to 2795 m (2720 m TVD)\r\nwith shows on claystones and siltstones down to top Dunlin Group. The Statfjord\r\nGroup was encountered at 3003 m and was water filled. Shows were described only\r\nwithin the Brent Group.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eFour cores were cut in the Brent and\r\nuppermost Dunlin Groups within the interval 2732 - 2828.3 m. No fluid samples\r\nwere taken on wire line.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 24\r\nDecember 1987 as an oil appraisal well.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eTesting\u003c/span\u003e\u003c/b\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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