{
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  "LayerName" : "Wellbore - History",
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    "wlbName" : "30/6-5",
    "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 30/6-5 was drilled on the Brage\r\nHorst east of the Gullfaks fault block in the North Sea. The main purpose was\r\nto test the hydrocarbon potential in Middle Jurassic sandstone.\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\u003eWildcat well 30/6-5 was spudded with the\r\nsemi-submersible installation Deepsea Saga on 11 June 1981 and drilled to TD at\r\n3550 m in the Triassic Lunde Formation. No significant problem was encountered\r\nin the operations. The well was drilled with spud mud down to 951 m, with\r\ngypsum/polymer mud from 951 m to 1801 m, and with gel/lignosulphonate mud from\r\n1801 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe Brent Group, Tarbert Formation was\r\nencountered at 2824 m. From wire line logs and petrophysical analysis oil was\r\nfound from 2841 m down to 2899 m. Pressure measurements indicated oil/water\r\ncontact at 2907 m. Shows on cores continued down to 2933 m. The Etive Formation\r\nrepresented the main part of the net pay.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eEight cores were cut in the well. Cores 1\r\nand 2 were cut in the interval 2843.5 - 2854.7 m. Cores 3 to 8 were cut in the\r\ninterval 2871.5 - 2949.8 m. RFT oil samples were taken at 2847.5 m, 2867.1 m\r\n(film of oil), 2871.2 m (traces of oil), 2874.5 m, 2881 m, 2889 m, 2923 m (film\r\nof oil). The samples proved H2S contents in the range 30 - 50 ppm. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 15\r\nAugust 1981 as an oil discovery.\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=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe rig lacked qualified equipment and\r\npersonnel trained for drill stem testing with the levels of H2S proven by RFT\r\nsampling. Testing was therefore abandoned. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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