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    "wlbNpdidWellbore" : 176,
    "wlbName" : "9/4-2",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 9/4-2 was drilled on a salt-induced,\r\nanticlinal structure in the Egersund Basin in the North Sea, 11 km to the north\r\nof the 9/4-1 location. The primary objective was the Middle Jurassic sandstone,\r\nbut also Triassic sands were considered prospective. Danian and Late Cretaceous\r\nchalks were seen as secondary objectives.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well is Type Well for the Base\r\nCretaceous Flekkefjord Formation in the Norwegian-Danish Basin.\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 9/4-2 was spudded with the\r\njack-up installation Gulf Tide on 19 July 1970 and drilled to TD at 3025 m in\r\nthe Middle Triassic Skagerrak Formation. Three casing strings were set in the\r\nhole. The 20" casing was originally planned around 600 m but stopped short\r\nat 282 m where it had to be set. Except for this, the hole was drilled without\r\nsignificant technical problems. The hole was drilled with seawater as drilling\r\nfluid down to 99 m from where a seawater gel with spersene was used. Diesel oil\r\nwas used as emulsifier.\u003c/p\u003e\r\n\r\n\u003cp\u003eDanian and Late Cretaceous chalks were\r\npenetrated from 1323 m to 1936 m and were found water wet. The target Middle\r\nJurassic sands (Sandnes Formation) was encountered at 2490 m. The sand was\r\nwhite, medium to coarse grained, poorly consolidated, calcareous, with thin\r\ninterbeds of red to grey, micaceous shale. This sandstone appears to be an\r\nexcellent reservoir, of the total thickness of 50 m about 48 m appeared to be a\r\nporous sandstone on the logs with porosity of about 24 percent. The Triassic\r\n(Skagerrak Formation) was encountered at 2633 m. It consisted of red, soft,\r\noccasionally calcareous and micaceous claystone with interbedded red to white,\r\nfine to coarse grained, in part calcareous sandstone. No hydrocarbon shows were\r\nencountered in the well. No conventional cores were cut and no fluid samples\r\ntaken.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 29\r\nAugust as a dry hole.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eNo drill stem test was performed.\u003c/p\u003e",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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