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    "wlbNpdidWellbore" : 1038,
    "wlbName" : "9/2-1",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 9/2-1 was drilled in a new separate\r\nstructure and designed to test the hydrocarbon potential of the Egersund Basin.\r\nThe main target of the well was to test sandstones of middle Jurassic age.\r\nFurthermore, the well was expected to improve the paleontological, the\r\ngeological and the geochemical understanding of the area.\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 9/2-1 was spudded with the\r\nsemi-submersible installation Dyvi Delta on 21 February 1987 and drilled to TD\r\nat 3756 m in the Triassic Skagerrak Formation. The well was drilled with a\r\n36" bit down to 189 m, but the drill bit got stuck due to boulders and the\r\nstring had to be blown off just above the bit. The well was respudded 23\r\nFebruary 1987 and this time a 17 1/2" pilot hole was drilled before\r\nopening to 36". It was drilled to 587 m without a riser. NPD gave\r\nsuspension from conventional logging through this sequence because the MWD log\r\nwas of good quality, with continuity and correlatable to other wells in the\r\narea. Further drilling proceeded without significant problems. The well was\r\ndrilled with spud mud down to 788 m and with gypsum/polymer mud from 788 m to\r\nTD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe top of the Jurassic sand (Sandnes\r\nFormation) was reached at 3174 m, 178 m deeper than prognosed. The oil water contact\r\nwas difficult to determine exactly from logs, but was believed to be somewhere\r\nin the transition zone between 3230 and 3239 m. There were good shows down to\r\n3240 m. Core and log analysis indicated a fairly low porosity sandstone with\r\nsmall amounts of silt, shale and limestone. Compaction, quartz cementation,\r\ncalcite cement, and clay minerals occurring as fine-grained pore filling\r\naggregates, are the main porosity-reducing factor in the reservoir. The core\r\nand log analysis indicate a general trend of decreasing reservoir quality with\r\nincreasing depth. The Bryne Formation at 3309 m to 3601 m was water wet.\r\nOrganic geochemical analyses show many intervals with good to excel",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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