{
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      "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" : "537",
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    "wlbNpdidWellbore" : 884,
    "wlbName" : "25/5-1",
    "wlbHistory" : "\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 class=a1455\u003e\u003cspan lang=EN-US\u003eWell 25/5-1 was drilled\r\non a Jurassic structure straddling the two blocks 25/5 and 25/2. It is located\r\nnear the crest of a westward tilted Jurassic fault block in the northern part\r\nof block 25/5. The northern extension of this structure was drilled in 1977 by\r\nwell 25/2-6 which is located In the southern part of the neighbouring block\r\n25/2, in a down dip position relative to well 25/5-1. Well 25/2-6 was plugged\r\nand abandoned with limited oil shows in sandstones of the Early Jurassic\r\nStatfjord Formation. The main objectives of well 25/5-1 were to test the\r\nhydrocarbon potential of the middle Jurassic Vestland Group sandstones and the\r\nEarly Jurassic Statfjord Formation sandstones up dip of well 25/2-6.\u003c/span\u003e\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 class=a1455\u003e\u003cspan lang=EN-US\u003eWildcat well 25/5-1 was\r\nspudded 12 May 1987 by Norcem semi-submersible rig Nortrym and completed 1\r\nAugust 1987 at a depth of 3430 m in the Triassic Group. Drilling proceeded\r\nwithout significant problems. There was no sign of shallow gas. One core was\r\ncut in the Draupne Formation between 2916 and 2925 m. Top reservoir (Hugin\r\nFormation) was encountered at 2984 m. Five cores were cut between 2990 - 3081 m\r\nin the Hugin and Sleipner formations and into the Drake Formation. The logs\r\nshowed that the whole reservoir section contained oil down to base Sleipner /\r\ntop Drake Formation, which formed a lithological sand / shale contact at 3060\r\nm. RFT pressure measurements indicated an oil/water contact at ca 65 m below\r\nthis level, implying a vertical oil column of 166 m. Due to this the hole was\r\ndecided to be sidetracked to find the oil/water contact in the Sleipner\r\nFormation. Top Statfjord came in at 3232 m, and 3 cores were cut in the\r\ninterval 3235 - 3291 m. There were shows down to 3264 m; below this depth the\r\nsandstones were wate",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}