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    "wlbName" : "6407/9-2",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well 6407/9-2 was the second\r\nwell in the Northern part of the Draugen Discovery on the Haltenbanken. The\r\nmain objectives of the appraisal were to improve estimation of oil in place; to\r\nevaluate the reservoir quality and sand development on the Northern flank of\r\nthe structure; calibration of the seismic time pick and velocity model; and to\r\nevaluate the oil deliverability and water injection characteristics. \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 6407/9-2 was spudded with the\r\nsemi-submersible installation Borgny Dolphin on 18 November 1984 and drilled to\r\nTD at 1865 m in the Early Jurassic Tilje Formation. The well was drilled with\r\nseawater and bentonite down to 813.5 m and with KCl/Polymer mud from 813.5 m to\r\nTD. No shallow gas was encountered.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe Rogn Formation came in twenty m below\r\nprognosed depth at 1650 m. It consisted of an overall coarsening upwards sand\r\nsequence and contained an oil column of 12.5 m down to an oi1/ water contact at\r\n1663.5 m. The calculated porosity was fairly constant throughout the reservoir\r\nat approximately 27%, while measured permeability decreased from up to 5 Darcy\r\nin the oil-bearing interval down to 20 mD towards the base of the reservoir.\r\nEight conventional cores were cut from 1638 m to 1706.5 m. Several runs were\r\nmade with the RFT: the reservoir pressure measured was hydrostatic, 2392 psia\r\nat 1625 m. No down hole fluid sample was recovered due to repeated plugging of\r\nthe sampling probe.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 2\r\nFebruary as an oil appraisal\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eTwo DST tests were performed. The water\r\nzone was perforated from 1670 to 1675.5 m. An eight hours water injection test\r\nat rates up to 8000 b/d did not reveal any immediate problems related to\r\ninjection of unfiltered clean seawater. After the water zone test the oil zone\r\nwas perforated from 1651 to 1657 m. The well was gravel packed and rates up to\r\n1177 Sm3/day (7400 stb/d) of 40 deg API o",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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