{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 7,
    "wlbName" : "30/6-13",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 30/6-13 is a replacement for the\r\n30/6-12 well, which was terminated in Pliocene sediments due to technical\r\nproblems. The appraisal well 30/6-13 was drilled in a down flank position on\r\nthe Alpha block east of the 30/6-1 Oseberg Discovery well, which tested gas in\r\nthe Middle Jurassic Brent Group. The main objectives of the well were to\r\nconfirm the reserves of hydrocarbons, to prove oil in the Etive Formation, to\r\ndefine and refine the geological model for the Alpha structure, to obtain core\r\nfrom the Brent Group, and to do a water injection test in the oil zone. The\r\nwell was planned to be drilled 50 m into the Drake Formation to a total depth\r\nof 2764+/- 50 m. \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 30/6-13 was spudded with the semi-submersible\r\ninstallation Treasure Seeker on a location ca 40 m to the south-east of well\r\n30/6-12, on 11 March 1983. It was drilled to TD at 2775 m in the Early Jurassic\r\nDrake Formation. No major problems occurred during drilling. The well was\r\ndrilled with spud mud down to 613 m and with a KCl/polymer mud from 613 m to TD.\r\nA pill of Imco-spot/Pipelax 140 bbl pill with 50 bbl diesel was spotted from\r\n1410 m to 1525 m to free the 13 3/8" casing, which was stuck. The casing\r\ngot free and was cemented with shoe at 1705 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well encountered hydrocarbons from\r\n2571 to 2671 m in the Middle Jurassic Brent Group sandstones. No other\r\nhydrocarbon bearing reservoirs were encountered. Oil shows reported from\r\nlimestone stringers in the interval 2120 - 2325 m in the Paleocene and Late\r\nCretaceous were considered uninteresting.\u003c/p\u003e\r\n\r\n\u003cp\u003eA total of nine cores were cut\r\ncontinuously from the Ness Formation to the Dunlin Group shales. One successful\r\nsegregated RFT fluid sample was obtained at 2661.5 m (3 l oil and 0.57 Sm3 gas).\r\n\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 14 May 1983 as an oil/gas appraisal well.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThree DST's were performed in the Brent\r\nGroup. \u003c/p\u003e\r\n\r\n\u003cp\u003eDST 1 was a co",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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