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    "wlbNpdidWellbore" : 921,
    "wlbName" : "9/3-1",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 9/3-1 was drilled on a salt induced\r\ndomal trap developed at the edge of the Stavanger Platform. The main objective\r\nof the well was to evaluate the sandstones of the Middle Jurassic Vestland\r\nGroup at a prognosed depth of 1805 m. The well was designed to achieve a valid\r\ntest of the prospect with one well, and to ensure a satisfactory tie of well\r\nresults to existing seismic data. The prognosed TD was 2125 m. The well was\r\nplanned to fully penetrate the reservoir sequence and proceed 50 m deeper than\r\nthe crest, into the underlying rocks of Triassic age.\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 9/3-1 was spudded with the\r\nsemi-submersible installation Borgny Dolphin on 29 July 1986 and drilled to TD\r\nat 1972 m in the Triassic Skagerrak Formation. Drilling proceeded without\r\nsignificant problems.\u003c/p\u003e\r\n\r\n\u003cp\u003eTop Sandnes Formation came in at 1788 m,\r\n18 m above prognosed depth. The reservoir was water bearing with no trace of\r\nhydrocarbons. The Vestland Group was found to be 167 m thick with porosities up\r\nto 29.5%. Permeability measurements from the core in the Sandnes Formation gave\r\nan average value of about 1000 mD, but as high as 4700 mD in one instance. No\r\nincrease in background gas and no fluorescence or other hydrocarbon indications\r\nwere observed on cuttings or on any of the 70 sidewall cores recovered. The Tau\r\nFormation shales had excellent source rock properties with TOC in the range 1.5\r\n% to 4.5 % and hydrogen indexes in the range 100 to 500 mg HC/g TOC. Coals of\r\nthe Lower Sandnes Formation and in the Bryne Formation also showed excellent\r\nproperties with hydrogen indexes up to 465 mg HC/g TOC. No migrant hydrocarbons\r\nwere however indicated by the organic geochemical analyses, and all formations\r\npenetrated by the well were immature for generation of petroleum and. One core\r\nwas cut in the interval 1799 -1814 m in the Sandnes Formation. The RFT tool was\r\nrun in the bottom hole section over the reservoir and 8 good pressure points\r\nconfirmed ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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