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    "wlbNpdidWellbore" : 1308,
    "wlbName" : "2/5-8",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 2/5-8 is located on the South East\r\nTor Field in block 2/5 in the Central Trough in the North Sea. The overall\r\noutline of the field had previously been defined by the wells 2/5-3 and 2/5-5. The\r\npurpose of the well was to test the distribution of high-porosity, re-deposited\r\nchalk and productive zones west of the major NS trending crestal fault in the\r\nfield. It was also planned to test the productivity of the chalk in both the\r\nEkofisk and the Tor Formations on the flanks, confirm reserve calculations for\r\nthe structure and get good oriented core coverage in both formations.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well 2/5-8 was spudded with the\r\nsemi-submersible installation Dyvi Stena on 18 September 1988 and drilled to TD\r\nat 3367 m in the Late Cretaceous Hod Formation. Drilling proceeded without\r\nsignificant problems. The well was drilled with seawater and pre-hydrated gel\r\nsweeps down to 370 m and with water based gypsum/polymer non-dispersed mud from\r\n370 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eTop Ekofisk came in at 3107 m and top Tor\r\nFormation at 3204 m. Two cores were cut in the interval 3115 - 3142.5 m in the\r\nEkofisk Formation and another three cores in the interval 3207 - 3291 m in the\r\nTor Formation. The chalk was of a relatively poor reservoir quality both in the\r\nEkofisk and Tor Formation, and oil staining were only found along fracture\r\nplanes in cores from the Tor Formation. The logs confirmed the negative result\r\nfrom the cores. \u003c/p\u003e\r\n\r\n\u003cp\u003eNo fluid samples were taken in the well.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 5 November 1988 as a dry well with shows.\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\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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