{
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      "rel" : "collection",
      "type" : "application/geo+json",
      "title" : "The collection document"
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      "title" : "This document as JSON"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "262",
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    "wlbNpdidWellbore" : 267,
    "wlbName" : "2/7-8",
    "wlbHistory" : "\r\n\r\n\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eGeneral\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 2/7-8 is located In the Feda Graben\r\nof the southern North Sea, some 3 km west of the Eldfisk Field. It was drilled\r\non the East Eldfisk Structure, and the main objective was to test the Danian\r\nLimestone. Secondary objective was to test the Late Cretaceous Chalk, which\r\ncould by hydrocarbon bearing if porosity is present.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eOperations and results\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWildcat well 2/7-8 was spudded with the jack-up\r\ninstallation Zapata Explorer on 8 June 1973 and drilled to TD at 3318 m in the\r\nLate Cretaceous Hod Formation. The well was drilled with seawater and hi-vis\r\nslugs down to 1220 m, and with a lignosulphonate mud (UNI-CAL / Caustic) from\r\n1220 m to TD. According to the mud program the section below 1220 m was drilled\r\nwith 4% diesel in the mud.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Danian Limestone, which was expected\r\nto be 100 m thick with 38 m of net pay, was found to be much thinner than the\r\nother wells on Eldfisk, and was only 9 m thick. It was also less fractured than\r\nother wells on Eldfisk, but still yielded commercial quantities of oil and gas,\r\nafter acidization, over the total interval on the third of three drill stem\r\ntests. This test included the top 23 m of the Late Cretaceous (Maastrichtian). The\r\nremaining tests below this interval, also in the Maastrichtian, did not produce\r\noil or gas in commercial amounts. The truncated Danian, the lack of fracturing\r\nand secondarily porosity, and the fact that the produced oil was heavier than the\r\noils on the main Eldfisk structure to the west, suggested that East Eldfisk structure\r\nis not in communication with the main Eldfisk structure.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo cores were cut and no wire line fluid\r\nsamples were taken.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp cla",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}