{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1969,
    "wlbName" : "34/8-8",
    "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 34/8-8 was drilled to appraise the N-1\r\nsegment of the 34/8-1 Visund discovery on Tampen Spur in the Northern North\r\nSea. The N-1 segment is estimated to contain approximately 30% of the resources\r\nin the Brent-North area. Confirmation of these resources was critical for\r\nreservoir management and production layout in future development plans. The\r\nprimary objectives of the well were thus to confirm the resources in the Brent\r\nGroup and to obtain data that could be used in reservoir engineering studies on\r\nimproved oil recovery. Secondary objectives were evaluations of the Statfjord\r\nFormation and the Lunde B/C Formation. The well design and location was chosen\r\nprimarily to evaluate the Brent target with respect to defining fluid contacts\r\nin clean sands, avoid faults, and penetrate as close as possible to the erosion\r\nedge of the top of the Brent Group.\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 34/8-8 was spudded with\r\nthe semi-submersible installation Transocean 8 on 30 June 1992 and drilled to\r\nTD at 3625 m in the Late Triassic Lund Formation. After drilling to 1430 m in\r\nthe 12 1/4" section the drill string got stuck. 16.55 m of the BHA was\r\nleft in the hole and the hole was plugged back to 1354 m where a minor\r\ntechnical sidetrack was performed. After setting the 30" casing an\r\nindustry strike caused ca 5 days downtime. The well was drilled with spud mud\r\ndown to 1364 m, and with Anco 2000 glycol mud from 1364 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Brent Group was encountered at 2921\r\nto 3077 m. It was oil bearing and wire line logs confirmed an OWC at 2971 m, while\r\nRFT pressure tests suggested a free water level between 2973.4 m and 2976.8 m. From\r\na gross Brent Group thickness of 156 m, a net pay thickness of 97 m was\r\nidentified. An average porosity of",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}