{
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 509,
    "wlbName" : "30/3-1 R",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 30/3-1 R is located just north of\r\nthe Huldra Discovery. The primary well bore 30/3-1 was drilled in 1979 to a\r\ntotal depth of 3718 m where it was suspended due to an unexpected pressure\r\nbuild-up in the Early Cretaceous. The purpose of well 30/3-1 R was to re-enter\r\nthe previously abandoned well and continue drilling beneath the 9 5/8"\r\ncasing shoe to test sandstones in the Brent Group. Secondary objectives were\r\nsandstones in the Early Jurassic, Cook and Statfjord formations. Well 30/3-1 R\r\n(Phase 2) was planned to be drilled 50 m into the Triassic to a total prognosed\r\ndepth of 4825 m.\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 30/3-1 R was re-entered by\r\nthe semi-submersible installation Dyvi Delta on 1 January 1982 and drilled to\r\nTD at 4421 m (4395 m TVD) in Late Triassic sediments in the Statfjord\r\nFormation. After the 9 5/8" casing had been drilled and cleaned out for\r\ncement plugs the string was lost in the hole when running in with a new bit.\r\nAfter several attempts to retrieve the fish, the hole was plugged back. A\r\nwindow was cut in the 9 5/8" casing from 3657 m to 3672 m and the hole was\r\nkicked off from this depth after problems with lost circulation had been\r\nsolved. While drilling of the last part of the 8 1/2" hole several\r\nincidents of stuck pipe was experienced. This section was plugged back with\r\ncement. When displacing the second cement plug, the pipe got stuck. After\r\ncutting the 5" drill pipe an influx (gas and water) from the top of the\r\nStatfjord Formation was taken. The well built a deviation with maximum of 20.5°\r\nat 4165 m. The well was drilled with a Spersene XP 20/Magcogel/nut plug mud\r\nsystem from kick-off to TD. \u003c/p\u003e\r\n\r\n\u003cp\u003eHydrocarbons were encountered in thin\r\nsandstones interbedded with limestone, coals and claystones over the interval from\r\n3762 m to 3861 m in the Ness, Etive, and Rannoch formations in the Brent group.\r\nOne core was cut from 3863.6 m to 3875.2 m in the Brent Group. No fluid sample\r\nw",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}