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    "wlbNpdidWellbore" : 2623,
    "wlbName" : "25/7-3",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 25/7-3 was a\r\ndiscretionary exploration well approximately 3 km south-south west of well\r\n25/8-5 S which discovered oil in the Elli structure. Block 25/7 is situated in\r\nthe South Viking Graben on the western side of the Utsira High, a basement high\r\nthat tilts slightly towards the east. The South Viking Graben has an\r\nasymmetrical profile bounded in the west by the Brae/Crawford Fault Zone and\r\nthe Utsira High to the east. The Elli structure is located on a basement\r\nterrace stepping up to the Utsira High from the Graben area. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe primary\r\nobjective of well 25/7-3 was to prove commercial reserves in Elli South by\r\ntesting the hydrocarbon potential of the Paleocene Upper Heimdal Formation.\r\nSecondary objectives were to define fluid contacts within the Heimdal\r\nFormation, to provide sufficient data for development planning start-up, find a\r\npossible point of production should the results be positive, and to obtain a\r\ngood well tie to the top Cretaceous and top Balder seismic reflectors.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eExploration well\r\n25/7-3 was spudded with the semi-submersible installation "Deepsea\r\nBergen" on 27 July 1995 and drilled to TD at 2540 m in the Late Cretaceous\r\nTor Formation. The AFE estimated time for the well was 28.1 days dry hole plus\r\n10.5 days to DST. Actual estimated drilling time was 23.6 days, and testing was\r\n9.8 days. The well was drilled with bentonite spud mud down to 1186 m and with\r\n"ANCO 2000" mud with ANCO 208 glycol additive from 1186 m to TD. Top\r\nLista Formation came in at 2052 m, ca 20 shallower than prognosed. Top Heimdal\r\nFormation was found at 2094 m. The Heimdal Formation was hydrocarbon bearing\r\nwith an OWC at 2114.5 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eTwo cores were cut\r\nin the Heimdal Formation, both with full recovery. The first core was cut\r\n2099-2110.6 m, and the second at 2111-2130.2 m. Shows were described in the\r\ncores down to a depth of 2117 m. A total of 20 FMT pressure tests were taken,\r\nwith 19 successf",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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