{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "951",
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    "OBJECTID" : 951,
    "wlbNpdidWellbore" : 2830,
    "wlbName" : "33/9-19 S",
    "wlbHistory" : "\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eGeneral\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 33/9-19 S is situated in the Tampen\r\nSpur area. The well targeted the Statfjord Nord Nordøst Segment at the\r\nnorth-eastern extension of the Statfjord North Field structure in blocks 33/9\r\nand 34/7. The objective was to prove the minimum economical recoverable\r\nreserves and the most likely oil water contact in the Brent Group.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eOperations and results\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe 33/9-19 S well was spudded on the 29\r\nof June 1996, using the semi-submersible installation "Transocean\r\nWildcat". The well was drilled in a north-western direction to TD at 3197\r\nm in the Early Jurassic Statfjord Formation. A pilot hole was drilled to 450 m.\r\nNo shallow gas was recorded. The 36" and 17 1/2" sections were\r\ndrilled with sea water and swept clean with bentonite mud. The 12 1/4"\r\nhole section was drilled with Ancho-2000 mud and the 8 1/2" hole section\r\nwas drilled with Ancovert Oil based mud. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe target Base Cretaceous/Top Brent was\r\nreached at 2689.0 m (2646.8 m TVD RKB), 28 m shallower than prognosed. Sandstone\r\nin the Brent Group was oil filled from top down to claystone at 2811 m. Drilling\r\ncontinued towards the planned TD in Dunlin Group with an inclination of 35°.\r\nAfter having reached this TD, it was decided to continue drilling in order to\r\ninvestigate the Statfjord Formation reservoir characteristics and to improve\r\nthe mapping of the Brent and Dunlin Groups. The inclination stayed at approximately\r\n29.5° to final TD at 3197 m (3061.5 m TVD RKB). Top Statfjord Formation, which\r\nwas water wet, came in at 3122 m (2996 m TVD RKB), 19 m TVD shallower than\r\nprognosed.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eOne 90 ft core was cut from 2709 to 2727\r\nm (100% recovery). The core jammed off after 18 m during coring of a calcite\r\ncemented san",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}