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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 889,
    "wlbName" : "34/7-9",
    "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 34/7 9 was drilled on the Snorre\r\nstructure in the northernmost part of the block. The main objective of the well\r\nwas to test the hydrocarbon potential of the upper Lunde Formation in the\r\nSnorre structure. \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 34/7-9 was spudded with\r\nthe semi-submersible installation Treasure Saga on 13 April 1986 and drilled to\r\nTD at 3240 m in the Late Triassic Lunde Formation. Minor shallow gas peaks were\r\nobserved from mud gas readings in the pilot hole below the 30" casing at\r\n498 - 500 m. Drilling proceeded without significant problems. The well was\r\ndrilled with spud mud down to 471 m, with gel mud from 471 m to 915 m, with\r\ngypsum/polymer mud from 915 m to 2479 m, and with gel mud from 2479 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 34/7-9 penetrated the reservoir at\r\n2442.5 m, 50 m deeper than prognosed. From FMT pressure points the the oil\r\nwater contact (OWC) was defined in the upper Lunde at 2600 m (2574 m MSL). The\r\naverage log porosity in the oil zone was 25.6%, the net/gross was 0.24, and the\r\naverage water saturation was 30%. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eShows were seen from 2100 to 2315 m in\r\nthe Shetland Group. Below 2315 m the shows disappeared and did not reappear\r\nbefore the upper Lunde reservoir was penetrated at 2442.5 m. Down to a\r\nsandstone/claystone boundary at 2594 m, the sandstones showed a pale brown oil\r\nstain, fair to good odour, 100% - 90% strong, patchy, yellow to light yellow fluorescence,\r\nfast to instant streaming bluish white cut and a pale yellow residue upon\r\nevaporation. Below 2594 m no shows were seen.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eA total of 10 cores were cut and\r\nrecovered during drilling of the well. The cores were taken in the upper Lunde\r\nFormation from ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}