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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 464,
    "wlbName" : "6507/7-2",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well 6507/7-2 was drilled in the\r\nnorthern part of the Haltenbanken area, some 190 km west of the Norwegian\r\ncoast. It was drilled to evaluate the "B" prospect in the intensely\r\nfaulted zone that lies at the intersection of the Nordland Ridge in the\r\nnortheast and the Halten Terrace in the south. The prospect was in a southward\r\nplunging horst block formed by a Late Jurassic tensional fault system. The main\r\nreservoir interval was anticipated to be the Lower Jurassic sandstone of the\r\nAldra (Tilje) 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 6507/7-2 was spudded with\r\nthe semi-submersible installation Nortrym on 25 February 1985 and drilled to TD\r\nat 3262 m in Late Triassic sediments of the Åre Formation. No significant\r\nproblems occurred during drilling operations, which went very much according to\r\nschedule. The seven-test program was however delayed approximately two weeks\r\ndue to a premature firing of the Baker Tubing-Conveyed Perforating Guns while\r\nrunning in for DST 4. This necessitated the running of a protective string of\r\n7" casing to cover the perforations (1062.5m to 1072.5m) and enable the\r\ntesting program to be completed. Additional time was lost due to pulling and\r\nrepairing the BOP stack after running the protective casing string. The well\r\nwas drilled with sea water down to 1030 m and with gypsum mud from 1030 m to\r\nTD.\u003c/p\u003e\r\n\r\n\u003cp\u003eShetland Group sediments were resting\r\ndirectly on the Fangst Group, confirming heavy erosion at the crest of the\r\nstructure as prognosed. The oldest dating of the Shetland Group was Santonian\r\nage, in sediments ca 5 m above top Fangst Group, while the youngest Fangst\r\nGroup sediments were dated Toarcian-?Aalenian. At 2198 meters gas levels rose,\r\nindicating the top of the Jurassic sediments. Associated with the gas show was\r\na rare dull-gold fluorescence on cuttings; however, no cut or staining was\r\nevident. The MWD gave little indication of sand through the Fangst Group and\r\nvery little sand",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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