{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 289,
    "wlbName" : "2/11-6 S",
    "wlbHistory" : "\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 2/11-6 S was drilled on the\r\nLindesnes Ridge in the southern North Sea. The objective was to appraise the\r\nHod discovery made by well 2/11-2 in 1974 (Hod West) and appraisal well 2/11-3\r\nin 1977 (Hod East). The Hod structure is oil-bearing in Late Cretaceous chalks,\r\nthe Hod and Tor formations. Well 2/11-6 S targeted the Hod East structure.\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\u003eAppraisal well 2/11-6 S was the first\r\nwell to be drilled on a subsea template which was laid by the semi-submersible\r\ninstallation Sedco 703. It was then drilled with Sedco 703 through slot number\r\nW7 of the twelve slot templates, to TD at 3970 m (2905 m TVD) where the pipe got\r\nstuck. The pipe was shot off with top of the fish at 3669 m and a technical\r\nsidetrack 2/11-6 ST1 was kicked off from 3626 m. The sidetrack was drilled to\r\nthe final TD at 4076 m (2980 m TVD). The initial well bore was drilled with\r\nseawater and hi-vis sweeps down to 1460 m, with Vertoil oil based mud from 1460\r\nm to 3601 m, and with Oilfaze oil based mud from 3601 m to 3970 m. The 2/11-6\r\nST1 sidetrack was drilled with Vertoil oil based mud from kick-off to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 2/11-6 drilled a nearly complete\r\nTertiary section and penetrated top chalk at 3690 m (2732 m TVD). The sidetrack\r\npenetrated top of the chalk group at 3685 m (2729 m) with a slightly lower\r\nangle (50 deg) than in the initial well bore (55 deg). The chalk stratigraphy\r\nin the two well bores was very similar apart from the angle/depth shift. The\r\nwell tested oil in the Tor / upper Hod formations and in the lower Hod\r\nFormation. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eSeven conventional cores were cut from\r\n3693 to 3741 m in the initial well bore before side tracking. The cores were\r\ncut in the Late Cretaceous Chalk. The total recove",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}