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    "wlbName" : "34/7-23 S",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 34/7-23 S is located on the Vigdis Field on Tampen\r\nSpur in the Northern North Sea. Located 5200 meters north-northwest of the H-Sentral\r\n34/7-21 oil discovery, the well was primarily designed to test for reservoir\r\npresence and hydrocarbons in the Top Draupne Sequence of Portlandian and\r\nRyazanian age. In the case of a discovery, pressure communication with well 34/7-21\r\nwould be tested. Secondary objectives of the well included lowermost Early\r\nCretaceous sandstones found oil bearing in 34/7-21, and intra Oxfordian\r\nsandstones which were found to yield oil in well 34/7-21 A. Both these\r\nsandstones are thin and below seismic resolution. An additional objective was\r\nto test the presence of sandstone in Paleocene.\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 34/7-23 S was spudded with the semi-submersible\r\ninstallation Vildkat Explorer on 22 February 1994 and drilled to TD at 3375 m (2889 m TVD) in the Middle Jurassic Tarbert Formation. The subsea\r\nJurassic target location coincided with the pipeline which connects the Snorre\r\nTLP to the Statfjord C platform. To avoid any mechanical problems with the rigs\r\nanchors, the spud location was chosen to be located 1400 meters east of the\r\nBase Cretaceous target location and the borehole was designed as a westward deviated\r\nwell. Special H2S equipment was mobilized when H2S was observed during coring\r\nin the upper part of the reservoir. For operational reasons it was decided to interrupt\r\ncoring and take a FMT sample. An additional 10 meters were drilled from 3096\r\ndown to 3106 m to get a rathole for the FMT logging tool. This interval was\r\nthus not cored. The well was drilled with spud mud down to 1175 m, and with KCl\r\nmud with a polyalkyleneglycol additive (BP DCP 208) m from 1175 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eIn the Nordland, Hordaland and Rogaland\r\nGroups, the well penetrated mainly clay/claystone with some beds of sand,\r\nexcept for the sandy Utsira Formation between 955 - 1144 m (934 - 1114 m TVD).\r\nIn the Shetland Group clay stones wi",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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