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    "wlbName" : "6407/9-3",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well 6407/9-3 was the third\r\nwell on the antiform structure of the Draugen Field in the Haltenbanken area.\r\nIt was placed on the crestal part of the structure, some four kilometres south\r\nof the discovery well. The main objectives of the well were to evaluate the\r\nlateral continuity and quality of the reservoir; to establish the velocity\r\ntrend in a North-South direction; to improve the volumetric estimate; and to\r\nevaluate the oil deliverability.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well 6407/9-3 was spudded with\r\nthe semi-submersible installation Borgny Dolphin 3 may 1985 and drilled to TD\r\nat 1868 m in the Early Jurassic Tilje Formation. Drilling proceeded without\r\nserious problems, except for the sections trough glacial deposits were boulders\r\ncaused minor problems. After setting 13 3/8" casing at 1601 m the RKB\r\ndatum was shifted one m to 26 m above MSL. Operations were interrupted for\r\nnearly 17 days from 13 June 1985 by a crew strike. Although amplitude anomalies\r\nindicated gas charged sands, no shallow gas was encountered. The well was\r\ndrilled with seawater and bentonite down to 781 m, with KCl mud from 781 m to\r\n1617 m, and with chalk mud from 1617 m to TD. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe top of the Rogn Formation was\r\npenetrated at 1630 m (1604 m SS) and the reservoir was oil bearing down to an\r\noil-water contact at 1664 m (1638 m SS), which is in line with the OWC observed\r\nin the other Draugen wells. The contact in this well was interpreted in the\r\ntransition between the good sands and the basal shales and was for that reason\r\nnot very clear. The average hydrocarbon saturation was calculated as 82% over\r\nthe 34 m oil column. Average porosity was 31% in this interval, of which 16.7 m\r\nhad a porosity above 32.5%. Prior to testing an FMT survey was carried out: the\r\nreservoir pressure measured was hydrostatic, 2395 psia at datum (1630 m SS).\r\nThe Garn Formation was penetrated from 1685 m to 1770 m and was water wet. Oil\r\nand oil shows were recorded in t",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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