{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 512,
    "wlbName" : "25/10-1 R",
    "wlbHistory" : "\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 25/10-1 R is a re-entry of well\r\n25/10-1, which found strong shows in thin Early Eocene sands, but was suspended\r\nat top Paleocene level due to heavy autumn storms. The purpose of the re-entry was\r\nto test the Early Eocene sands and to extend the well into deeper Paleocene\r\nsands, which were anticipated to be oil-bearing.\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 25/10-1 was re-entered (25/10-1\r\nR) with the vessel Glomar Grand Isle on 9 July 1970. The re-entry well was\r\nkicked off at 1664 m in 25/10-1 and drilled to final TD at 2091 m in the Early\r\nJurassic Statfjord Formation. No significant problems were encountered in the\r\noperations. The well was drilled with seawater/spersene XP-20, Splinex mud from\r\nkick-off to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eFrom kick-off down to 1747 m the well\r\ndrilled the same lithology as the primary well. The underlying Paleocene\r\nsection was composed of sands and shales, with the sand bed thicknesses ranging\r\nfrom about 4 to 40 m. These Paleocene sands were highly porous and permeable,\r\nbut only the top 5 m had good oil shows and this section produced water only on\r\nwire line formation test. The Paleocene section rested directly on the Early\r\nJurassic Statfjord Formation. Sands within the Statfjord Formation were of\r\nreservoir quality, but were water-wet with only streaks of non-fluorescing dead\r\noil.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe section from 1731 to 1804.1 m was cored\r\nall through in five cores, with near 100% total recovery. The upper two of\r\nthese (core #9 and #10) were partially overlapping with the lower three cores\r\n(core #6, #7, and #8) in well 25/10-1. A total of twelve wire line FIT samples\r\nwere attempted and five of them were reported to contain formation fluid. FIT\r\nno 1 and 2 were taken in the Paleocene sands (Heimdal Formation) at 1789.2 m and\r\n1778.2 m. These recovered only water and mud. The remaining successful FIT recovered\r\nhydrocarbons: FIT no 4 at 1760.8 m (Heimdal Formation) recovered gas and 4800\r\ncm3 oil, FIT no 6 at 1762.4 m (Heimd",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}