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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 21,
    "wlbName" : "7119/7-1",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eExploration well 7119/7-1 is located in\r\nthe Tromsø Basin, ca 30 km west of the Snøhvit Field area. The primary well\r\nobjective was to test a sandstone and/or limestone reservoir of Late Cretaceous\r\nage. The secondary objective of the well was to test a westward thinning wedge\r\ninterpreted as a sandstone reservoir of Late Cretaceous age. A further\r\nobjective of the well was to penetrate the Cenomanian unconformity with\r\npossible associated basal sandstones. Planned TD was 4100 m or 100 m below the\r\nCenomanian unconformity.\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 7119/7-1 was spudded with the\r\nsemi-submersible installation Treasure Seeker on 12 July 1983 and was drilled\r\nto a total depth of 3167 m in salt. No major problems occurred during drilling.\r\nThe well was drilled with seawater and bentonite down to 622 m, and with\r\nKCl/polymer mud from 622 m to 2518 m. From 2518 m to TD the mud was converted\r\nto a dispersed gel system allowing natural depletion of the KCL. \u003c/p\u003e\r\n\r\n\u003cp\u003eNo rocks with reservoir qualities were\r\npenetrated by this well. The prognosed Campanian sandstones/limestones were\r\ndeveloped as claystones, sometimes silty with occasional limestone stringers.\r\nInsignificant traces of sand were noted in that interval. Top Campanian was\r\nfound between 1375 m and 1377 m based on biostratigraphy. The base Late\r\nCretaceous wedge interpreted as sandstone was found poorly developed as\r\nsiltstones and silty claystones without reservoir characteristics. The base\r\nLate Cretaceous was encountered between 2796.5 m and 2810.5 m based on\r\nbiostratigraphy. The Cenomanian unconformity was penetrated at 2529 m without\r\nany associated sandstones. The well encountered evaporites of possible Permian\r\nage at 3094.5 m. No shows were recorded in the well. No conventional cores were\r\ncut and no fluid samples taken\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 11\r\nSeptember 1983 as a dry hole.\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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