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    "wlbNpdidWellbore" : 457,
    "wlbName" : "30/2-2",
    "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 30/2-2 was drilled on the\r\nMokkukalven Fault Complex north of the Oseberg Field in the North Sea.\u003c/span\u003e\u003cspan\r\nlang=EN-GB\u003e \u003c/span\u003e\u003cspan lang=EN-US\u003eThe objective was \u003c/span\u003e\u003cspan lang=EN-GB\u003eto\r\ntest possible hydrocarbon accumulations in the Huldra Field, on a structural\r\nhigh that is separated from Huldra discovery well 30/2-1 with significant\r\nfaults. Well 30/2-1 encountered a 119 m gas column in the Brent Group with a\r\ndown-to contact at 3793 m. The actual gas/water or oil/water contact could not\r\nbe established. The main target for 30/2-2 was the Brent Group, believed to be\r\nsome 70 m deeper than the gas column in 30/2-1.\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 30/2-2 was spudded with\r\nthe semi-submersible installation Dyvi Delta on 19 December 1984 and drilled to\r\nTD at 4172 m in the Early Jurassic Drake Formation. When doing the reservoir\r\nlogging, a radioactive part of the logging tool was left in the hole. This\r\naccident caused a sidetrack from 3894 m KB to TD. The sidetrack ran parallel to\r\nthe original hole at a distance of approximately 20 m. The intention was to\r\ndrill 50 m into the Statfjord Formation, but the well was finished in the Drake\r\nFormation due to hole conditions. The well was drilled with spud mud down to\r\n214 m, with gel/seawater from 214 m to 1023 m, with gypsum/CMC mud from 1023 m\r\nto 3802 m, and with gel/lignosulphonate from 3802 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eGas bearing Brent sandstone was\r\nencountered at 3935 m, with the gas-water contact somewhere in the interval\r\n3975 - 4080 m. No distinct contact was possible to recognize from logs or\r\nshows, but later geochemical analyses of the corers indicated a contact at ca\r\n3984 m. Fluorescence indicating shows was first recorded on claystone/limestone\r\ncuttings in the interval 2204 m to 2267 ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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