{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 248,
    "wlbName" : "1/9-5",
    "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 1/9-5 was drilled in the Feda Graben\r\nin the southern North Sea, in the saddle between the Tommeliten Gamma-structure\r\nand the intrusive salt plug forming the Tommeliten Delta structure. The purpose\r\nof the well was to appraise the Tommeliten Gamma discovery made by 1/9-4 and to\r\ntest the hydrocarbon potential and reservoir quality of the Ekofisk and Tor\r\nformations.\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\u003eAppraisal well 1/9-5 was spudded with the\r\njack-up installation Dyvi Beta on 3 October 1978 and drilled to TD at 3450 m in\r\nthe Late Cretaceous Hod Formation. The pipe got stuck at 3426 m during a\r\nclean-up trip. When trying to come loose the hook broke and the drill string\r\ndropped in the hole. This event caused material damage and rig shut-down for\r\nthree days, but nobody was injured. When fishing the drill string it came loose\r\nabove the jar but the rest of the BHA (approximately 260 m) was left in the\r\nhole. The well was drilled with spud mud down to 435 m, with a lime/"Morex"\r\nmud system from 435 m to 1377 m, with lime/"Morex"/Drispac mud from\r\n1377 m to 2725 m, and with lignosulphonate/lignite mud from 2725 m to TD. A lot\r\nof hole problems occurred in the 17 1/2" and 12 1/4" sections and\r\nthis was attributed to the lime/"Morex" mud system. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Ekofisk Formation came in at 3207 m\r\nand the Tor Formation at 3282 m. No significant hydrocarbon shows were\r\nencountered in any section of the well.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eOne core was cut from 3215.5 to 3 233.5 m,\r\nproving a dry carbonate section. No wire line fluid samples were taken.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 16\r\nDecember 1978 as a dry well.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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