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    "wlbNpdidWellbore" : 1358,
    "wlbName" : "33/12-7",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 33/12-7 was designed to drill the\r\nDelta structure, a tilted fault block on the Tampen Spur, and was the only\r\ncommitment well in licence 152. The primary objective was to test the\r\nhydrocarbon potential of the Brent group on the Delta structure. A secondary\r\nobjective was to explore the Statfjord Formation on the same structure. The\r\nwell was designed as a possible producer in case of a discovery. Shallow gas\r\nwas predicted at 375 m MSL, 415 m MSL, and possibly in sand lenses on an\r\nerosion surface at 456 m MSL. \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 33/12-7 was spudded with the\r\nsemi-submersible installation Deepsea Bergen on 22 February 1989 and drilled to\r\nTD at 3703 m in Early Jurassic sediments of the Statfjord Formation. After drilling\r\n26" section to 384 m fifteen days rig time were spent trouble shooting and\r\nrepairing a leak in the BOP. Otherwise operations went without significant\r\nproblems. The well was drilled with seawater and gel down to 383 m, with\r\nNewdrill/PAC/seawater from 383 m to 3034 m, and with gel/lignosulphonate from\r\n3034 m to TD. No shallow gas was encountered in the well. \u003c/p\u003e\r\n\r\n\u003cp\u003eSands were encountered in the Tarbert,\r\nRannoch, Cook and Statfjord Formations. No shows of hydrocarbons were recorded\r\nwhile drilling, except for some residuals in the Cook Formation. Post-well\r\norganic geochemical analyses established that the Draupne Formation has\r\npotential for generation of oil and gas and that the Heather Formation has\r\npotential for condensate/light oil and gas. Draupne is immature and Heather\r\nmarginally mature in the well location. Tarbert and Cook Formations were\r\nanalysed for migrated hydrocarbons but no significant abundance were found.\u003c/p\u003e\r\n\r\n\u003cp\u003eOne core was cut in the interval 3041 m\r\nto 3057.5 m. No fluid sampling was attempted.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 27\r\nApril 1989 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\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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