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    "wlbNpdidWellbore" : 2113,
    "wlbName" : "7/7-3",
    "wlbHistory" : "\u003cp\u003eWell 7/7-3 is located ca 5 km east of the\r\n UK border on the Jæren High in the North Sea. It was drilled to appraise the\r\nLate Jurassic discovery in well 7/7-2 and was designed to test seismic\r\ninterpretations, reservoir thickness and properties, pressure regime, and\r\nvolume of recoverable oil. The well was planned as a future injector, but since\r\nthe reservoir only indicated traces of hydrocarbons it was permanently plugged.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 7/7-3 was spudded with the semi-submersible\r\ninstallation Deepsea Bergen on 20 April 1993 and drilled to TD at 3584 m in the\r\nLate Permian Zechstein Group. The well took 17 days more than planned to drill,\r\nmainly due to a 8,5 days downtime related to BOP repair and loss of circulation\r\nat end of 12 1/4" section. The well was drilled with seawater and hi-vis\r\npills down to 918 m, and with ANCO 2000 mud from 918 m to 2677 m. From 2677 m\r\nto 3354 m the mud was gradually displaced to an ANCOTHERM/Bentonite system. The\r\nANCOTHERM/Bentonite system was used from 3354 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe 7/7-3 well penetrated the Ula\r\nFormation at 3490.5 m. The siltstone and the uppermost 2 metres of the\r\nsandstone showed only weak shows and the following logging and evaluation\r\nconfirmed that the sandstone did not contain any moveable hydrocarbons. \u003c/p\u003e\r\n\r\n\u003cp\u003eThree cores were cut from 3486 m to 3516\r\nm, from base Farsund Formation, through the Ula Formation and into the Triassic\r\nGroup. Two segregated FMT fluid samples were taken at the same depth, 3497.3 m.\r\nAll fluid chambers proved to contain mud filtrate and water and did not contain\r\nany hydrocarbons.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 4\r\nJuly 1993 as dry with shows.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eNo drill stem test was performed\u003c/p\u003e\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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