{
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    "wlbNpdidWellbore" : 2355,
    "wlbName" : "30/9-17",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 30/9-17 is located on the Bjørgvin\r\nArch south of the Oseberg Sør Field and North of the 30/9-16 K Oseberg Sør\r\nDiscovery. This is in the Northern North Sea. The well was drilled to clarify\r\nthe Oseberg Sør development strategy. The primary objective was to establish\r\nthe extent of the high-permeability Tarbert reservoir found in well 30/9-16.\r\nSecondary objectives were to test the lower Brent Group, the Cook Formation,\r\nand the Statfjord 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\u003eWell 30/9-17 was spudded with the semi-submersible\r\ninstallation Treasure Saga on 3 March 1995 and drilled to 1408 m where the well\r\nwas temporarily plugged back. This was due to gas and mud flow from the annulus\r\nbehind 9 5/8" casing. All returns were to sea bed. The well was drilled\r\nwith spud mud from top to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe conventional logs run did not give\r\nconclusive information regarding the origin of the shallow gas. A CBL-log was\r\nrun, and two zones (832 - 831 m, 550 - 549 m) were selected for perforation and\r\ncementing in order to kill the well. The well was killed only after cement had\r\nbeen squeezed into the upper perforation interval. Hence, the origin of the\r\nshallow gas was suspected to be the Utsira Formation sand or in thinner sand\r\nbeds just above the Utsira Formation. No cores were cut and no wire line fluid\r\nsamples were taken in the well.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was suspended on 13 March 1995. The well did not reach its target, and replacement well 30/9-18 was spudded\r\nthe day after ca 50 m to the east-southeast.\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",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}