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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 2153,
    "wlbName" : "2/11-9",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 2/11-9 (South Hod Prospect) is\r\nlocated within production license PL033, which also contains the Hod Field and\r\npart of the Valhall field. The South Hod Prospect extends across the\r\nNorway/Denmark border. Well 2/11-9 was drilled to test the hydrocarbon\r\npotential of pre-Jurassic sandstones contained within a horst block bounded to\r\nthe east by the major Skrubbe Fault. Lower Hod Chalk and postulated possible\r\nLate Jurassic sandstone comprised secondary objectives.\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 2/11-9 was spudded with the 3 leg\r\njack-up installation Maersk Gallant on 24 July 1993 and drilled to TD at 4406 m\r\nin Early Carboniferous sediments. The well was drilled in 139 days versus the\r\nplanned 103 days. An incident involving the loss of a 2 Curie Cesium 137 source\r\nfrom the MWD tool at 3816 m in the 12 1/4" section and contamination of\r\nthe drilling fluid system resulted in 51.7 days of unscheduled events during\r\nthe course of the well. The final solution was to abandon the contaminated\r\nsection and make a sidetrack from 3760 m. The well was drilled with seawater\r\nand bentonite pills down to 1008 m and with PHPA/KCl/glycol/polymer mud (ANCO\r\n2000) from 1008 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe prognosed Permian / Devonian sand\r\nunits similar to Embla field, were not seen. Oil shows were observed in the\r\nEkofisk, Tor and Hod Formations, typically associated with fractures, but the\r\nchalks were not of reservoir quality. The well penetrated a 612 m\r\npre-Cretaceous section in which the Late Jurassic was absent. Top Carboniferous\r\nwas set at 4055 m. Sandstone intervals were present, but there were no shows\r\napart from an isolated show in a black claystone at 4119 m in the\r\nCarboniferous. Organic geochemical analyses of cuttings showed that the\r\nCarboniferous shales and coal beds were mainly Type III with a poor to fair\r\npotential for gas only. Four cores were cut, three from the interval 3038 m in\r\nthe Våle Formation to 3070 m in the Ekofisk Chalk Formation and one in",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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