{
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    "wlbNpdidWellbore" : 1245,
    "wlbName" : "7224/7-1",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 7224/7-1 was drilled in Lopparyggen\r\nØst area on the Bjarmeland Platform. The hole was drilled on the Samson Dome\r\nstructure with closure on all pre-Oligocene levels. The well was designed to\r\ntest sandstone reservoirs of Early Jurassic/Late Triassic and Early Triassic\r\nages and carbonaceous rocks of Permian age. In addition, the well was to test\r\nthe geophysical and structural interpretation, and improve the geological,\r\ngeochemical and paleontological understanding of a new area in the Barents Sea.\r\n Planned TD was originally at 4400 m, into Permian carbonates. However, as the\r\nresult from well 7226/11-1 about 70 km further east turned out to be negative\r\nregarding the Permian rocks, it was decided to reduce TD to 3200 m. \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 7224/7-1 was spudded with\r\nthe semi-submersible rig Ross Rig 13 April 1988 and drilled to TD at 3067 m in\r\nTriassic rocks. During drilling Statoil reported increasing pressure and\r\nrelatively high connection gas readings. At 2352 m gas flowed in from the\r\nformation. During further drilling the pore pressure increased to 1.48 SG in\r\nthe formation at 2621 m, and Statoil decided to stop drilling and set casing at\r\n2658 m. The 9 5/8" casing was set at 2644 m. Further drilling to TD went\r\nwithout significant problems. The well was drilled with seawater and hi-vis\r\npills down to 664 m and with Newdrill polymer / Drispac from 664 m to TD. There\r\nwas no shallow gas in the hole.\u003c/p\u003e\r\n\r\n\u003cp\u003eMiddle Jurassic sandstone (Stø Formation)\r\ncame in at 894 m. Jurassic/Late Triassic reservoir section had good reservoir\r\nquality. In the Triassic section several minor sand zones of Anisian age in the\r\nKobbe formation was penetrated. Bottom Smithian sandstone (Klappmyss),\r\nprognosed at 2730 m, was not encountered as expected. Shows were recorded in\r\nthe Stø, Nordmela and Tubåen formations from 894 m to 931 m, but logs and RFT tests\r\nshowed that the sandstones were water bearing. The petrophysical evaluation\r\nindicate",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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