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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1188,
    "wlbName" : "2/2-4",
    "wlbHistory" : "\r\n\r\n\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 2/2-4 was drilled on the northern\r\nsegment of the Alpha structure in the southeastern corner of block 2/2 on the\r\nnortheastern flank of the Central Graben in the Ula-Gyda Fault zone. The\r\nstructure is a salt induced dome in an area exposed to extensional tectonism\r\nwhere rollover mechanism may have influenced the final structure. The southern\r\nsegment well 2/2-1, separated from the northern by a normal fault, proved gas\r\nin Oligocene and oil in Late Jurassic sandstones. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe main objective of the well was to\r\ntest the reservoir potential of Late Jurassic Ula Sandstone and to test a\r\npossible communication with the Alpha South structure. If hydrocarbon bearing,\r\nthe objective was to prove an oil column thick enough for commercial exploitation\r\nof the Alpha structure.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 2/2-4 was spudded with Wilh.\r\nWilhelmsen semi-submersible rig Treasure Saga on16 April 1988 and drilled to TD\r\nat 4020 m in the Triassic Smith Bank Formation. The well was drilled with spud\r\nmud down to 915 m, with KCl mud from 915 m to 3310 m, and with gel mud from\r\n3310 m to TD. It was drilled down to top Jurassic and 9 5/8" casing was\r\nset. \u003c/p\u003e\r\n\r\n\u003cp\u003eOligocene came in at 2084 m with sand\r\nwith small amounts of gas. Eight pressure points in the interval gave a water\r\ngradient of 1.0 g/cc and a gas gradient of 0.21 g/cc. The gas/water contact was\r\ndefined at 2110.5 m, the same as in 2/2-1. Estimated porosity from logs was\r\nmax. 27%. The main target Ula reservoir was encountered at 3324 m, but was\r\nfound water wet. Only residual oil was found in the uppermost part of the Ula\r\nsandstone and in siltstone of the Bryne Formation. No cores were cut. One FMT\r\nsegregated sample recovered gas from 2109 m in Oligocene. The gas was very dry\r\nwith 97% methane. The well was abandoned on 7 June 1988 as a gas appraisal\r\nwell.\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\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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