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    "wlbNpdidWellbore" : 291,
    "wlbName" : "3/5-2",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eExploration well 3/5-2 is located in the\r\neastern part of the Søgne Basin. The main objective was to test the hydrocarbon\r\npotential of northeasterly dipping Jurassic sands, which appeared to be\r\ntruncated up dip by erosion at a Late Kimmerian unconformity. The exact age of\r\nthe beds above and below the unconformity could not be predicted with certainty\r\nwith the seismic evidence available. There was no capable closure at any post\r\nunconformity horizon higher than that mapped as Late Kimmerian unconformity\r\njust above a possible Jurassic Sand.\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 3/5-2 is Reference well for the\r\nMiddle to Late Jurassic Haugesund Formation\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 3/5-2 was spudded with the\r\nsemi-submersible installation Odin Drill on 29 June 1978 and drilled to TD at\r\n3826 m in the Triassic Skagerrak Formation. The well was drilled without\r\nsignificant problems. After drilling 164 m of 36" hole the pipe was stuck,\r\nbut after spotting two 60 Bbl LCM pills followed by an 85 Bbl pill of Pipe Lax\r\nthe string pulled free without significant lost time. Drilling went on through\r\nthe 26" section to 462 m using viscous gel mud. From 426 m to TD the well\r\nwas drilled using a Drispac/Spersene mud system, adding Resinex from ca 3080 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eReservoir potential was encountered in\r\nthe Late Cretaceous Chalk (Maastrichtian 2708.5 m to 2726.5 m) and in Late\r\nJurassic (3174 m to 3185 m) and Triassic (3575 m to 3823.5 m) sandstones.\r\nGeochemical analyses proved oil prone shale, marginally mature (%Ro = 0.6 û\r\n0.7), in the Late Jurassic Kimmeridge Clay with TOC measured up to2.1 %. Also\r\nthe Middle Jurassic Haldager Formation contained shales with potential for gas\r\nand possibly some oil. Vitrinite reflectance in one sample from this Formation\r\nwas %Ro = 0.85. Small quantities of C1 to C4 were recorded in the Late Jurassic\r\nKimmeridge Clay Formation (3143 m to 3163 m) and in even smaller amounts in\r\nshales at the top of the Middle Jurassic (3331 m to 3359 m",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}