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    "wlbNpdidWellbore" : 1747,
    "wlbName" : "34/10-34",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 34/10-34 was designed to drill the\r\nC6 structure west of the Gullfaks Field. Block 34/10 is situated in the Tampen\r\nSpur area and the 6C structure is an elongated, lens shaped rotated fault block\r\ndipping to the NW and bounded to the East and South by faults. At the well\r\nlocation the Heather Formation and uppermost Tarbert Formation have been\r\neroded. The main objective of the well was to test the potential for\r\nhydrocarbons in the Brent Group sands west of the Gullfaks Field. No secondary\r\nprospects were defined.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 34/10-34 was spudded with\r\nthe semi-submersible installation Deepsea Bergen on 10 April 1991 and drilled\r\nto TD at 2410 m in the Early Jurassic Cook Formation. While drilling the\r\n26" hole some indications of gas was detected on ROV sonar, but no gas was\r\nobserved during hole opening. Apart from some problems with stuck pipe,\r\ndrilling went without significant problems. The screen from the drill string\r\ndropped into the MWD tool, thus preventing pulses from arriving at the surface.\r\nDue to this MWD is missing from 1349 m to1675 m. The well was drilled with\r\ngel/CMC down to 795 m, with gypsum/PAC from 795 m to 1994 m, and with\r\nbentonite/Lignite from 1994 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eSpotted shows were observed in limestones\r\nin the interval 1558 m to 1678 m in the Hordaland Group, through the Balder\r\nFormation and into the upper part of the Lista Formation. The Viking Group was\r\nencountered at 1991 m and consisted of only two m of Heather Formation. The\r\nTarbert Formation sandstones was encountered at 1993 m and proved oil. From\r\nelectric logs and FMT pressure measurements the OWC was interpreted at 2013.5\r\nm, with continuous oil shows on cores extending down to 2040 m. A weak oil show\r\nwas observed in an SWC from the top of the Cook Formation sandstone at 2360 m.\r\nOne segregated sample was taken at 2006.0 m. The sampling time for the 2-3/4\r\ngallon chamber was 62.3 minutes and for the one-gallon chamber 34.8 ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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