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    "wlbName" : "15/9-11",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 15/11-9 was drilled to appraise the\r\n15/9-9 Sleipner Øst discovery in the south Viking Graben area of the North Sea.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe primary objective was to delineate\r\nthe hydrocarbon accumulation found in the Heimdal Formation of the 15/9-Gamma\r\nstructure. The secondary objective was to test for possible hydrocarbons in\r\nTriassic sandstones.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well is Reference well for the Lista Formation,\r\nthe Meile Member, and the Heimdal Formation\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 15/9-11 was spudded with\r\nthe semi-submersible installation Ross Rig on 18 September 1981 and drilled to\r\nTD at 2950 m in the Triassic Hegre Group. A total of 99 days including a strike\r\nwas spent on this well. Apart from the strike, which amounted to 22 days of\r\nlost operation, there were no severe problems during drilling and testing\r\noperations. The well was drilled with sea water and bentonite down to 585 m and\r\nwith gel/lignosulphonate/seawater mud from 585 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well proved gas and condensate in\r\nHeimdal formation and verified thereby the results from the 15/9-9 well. The\r\ngas- water contact was found at 2442 m. Hydrocarbons were found also in the Jurassic\r\nHugin Formation sandstones with a gas-water contact at 2825 m. The TD for the\r\nwell was then extended from 2650 to 2950 m. No hydrocarbons were found in\r\nTriassic sandstones \u003c/p\u003e\r\n\r\n\u003cp\u003eEleven cores were cut in the well. Cores\r\n1 and 2 were cut from 2364 to 2379 m in the Lista Formation. Cores 3 to 11 were\r\ncut from 2395 to 2514 m in the Heimdal Formation. The RFT tool was run on wire\r\nline and the pressure data supported communication with the 15/9-9 discovery\r\nwell within the Heimdal Formation, while the Hugin Formation was in a separate\r\npressure regime. Segregated fluid samples were taken at 2387.5 m, in the\r\nHeimdal Formation, and at 2812 and 2825.8to 2826.5 m in the Hugin Formation.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 23\r\nDecember 1981 as a gas/condensate appraisal well.\u003c/p\u003e\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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