{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 211,
    "wlbName" : "34/10-11",
    "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 34/10-11 was drilled on the Gullfaks\r\nDelta structure in the North Sea. The primary objective of the well was to test\r\nsandstones of Middle Jurassic age. Secondary objectives were sandstones of\r\nLower Jurassic 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\u003eAppraisal well 34/10-11 was spudded with\r\nthe semi-submersible installation Ross Rig on 23 October 1980 and drilled to TD\r\nat 2155 m in Late Triassic sediments of the Lunde Formation. Bad weather caused\r\n511 hrs lost time (15.7% of total rig time). Significant lost time (509 hrs) was\r\ncaused also by malfunction and repairs of the BOP. The well was drilled with\r\nspud mud down to 463 m, with gel/lignosulphonate/seawater mud from 463 m to\r\n1100 m, with Gypsum/lignosulphonate/sweater mud from 1100 m to 1720 m, and with\r\ngel/lignosulphonate/seawater mud from 1720 m to TD. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eFirst oil shows were recorded from 1090 m\r\nto 1200 m, intermittent weak shows were seen from 1420 to 1495, and more or\r\nless continuous oil shows were recorded on limestone from 1660 m to top\r\nreservoir at 1868 m. The well proved oil in sandstones from top of the Early\r\nJurassic Amundsen Formation at 1868 down to the OWC at 2038 m in Late Triassic\r\nsediments of the Raude Formation. Below 2038 m shows were recorded down to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eSix cores were cut in the interval 1870 m\r\nto 1926.5 m in the Amundsen and Nansen formations. Two FIT fluid samplings were\r\nattempted. FIT 1 at 2081 m recovered 3 litres 35 °API oil and 7 litres of mud\r\nfiltrate in the 2 3/4 gallon chamber. The FIT 2 at 2051 m did not recover any\r\nfluids. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 5\r\nmarch 1981 as a as an oil appraisal well on the Gullfaks field.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBo",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}