{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 327,
    "wlbName" : "15/9-8",
    "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 15/9-8 was drilled on the Delta\r\nstructure in the southeastern part of the Sleipner West Field in the North Sea.\r\n\u00A0The primary objective was to delineate the hydrocarbon accumulation\r\nencountered in the 15/9-4 well on the same structure, and to get further\r\ninformation about the sand distribution in the area. The primary target was Callovian\r\nsandstones. Paleocene sandstone was the secondary target.\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 15/9-8 was spudded with\r\nthe semi-submersible installation Nortrym on 5 March 1981 and drilled to TD at\r\n3730 m in the Triassic Smith Bank Formation. Operations proceeded without\r\nsignificant problems. The well was drilled with seawater and hi-vis pills down to\r\n495 m, with gypsum/polymer mud from 495 m to 2845 m, and with a\r\ngel/lignosulphonate mud from m 2845 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe sandstones in Paleocene were water\r\nbearing. Top of the Callovian sandstone, Hugin Formation, was encountered at\r\n3446 m, while top Sleipner Formation was encountered at 3493 m. Bothe formations\r\nproved to be gas/condensate bearing with a gas-water contact at 3564 m based on\r\npressure gradients and well logs. No shows were recorded outside of the\r\nhydrocarbon bearing Hugin and Sleipner Formation.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eA total of 46.5 m core was recovered in\r\nfour cores from the interval 3448 to 3499 m. Segregated RFT fluid samples were\r\ntaken at 3460 m (gas, condensate and mud filtrate), 3561.5 m (gas, condensate\r\nand mud filtrate), and 3566.5 m (mud filtrate and a smaller quantity of gas).\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 25\r\nMay 1981 as a gas/condensate appraisal well.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eTesting\u003c/span\u003e\u003c/b\u003e\u003cspan lang=",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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