{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1545,
    "wlbName" : "30/6-23",
    "wlbHistory" : "\r\n\r\n\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 30/6-23 was drilled on the Beta\r\nSouth structure on the Brage Horst and south of the Veslefrikk Field in the\r\nNorth Sea. The Beta structure is surrounded by producing oil fields or\r\ncommercial discoveries. On Beta, oil has been discovered in the Middle Jurassic\r\nBrent Group reservoirs in fault-block traps. The oil is contained in two main\r\nsub-structures, i.e. the Beta Saddle and Beta South, comprising several smaller\r\nsub-compartments. The discovery well on Beta was the 30/6-5 well, but this well\r\nwas not tested due to the detection of H2S in the RFT samples. Later wells\r\nproved oil in the Beta Saddle without encountering H2S. The Beta Saddle is\r\ncharacterized by a multicontact reservoir having prominent shale barriers.\r\nThere are also slight differences in fluid composition between the two\r\ncompartments, which suggests that the saddle through is acting as a structural spill\r\npoint at the top Etive level. Primary target for the well was Base Brent Group\r\nprognosed to come in at 2891 m. Secondary objective was top Statfjord prognosed\r\nat 3141 m. OWC was expected at 2880 m.\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\u003eAppraisal well 30/6-23 was spudded 29\r\nApril 1990 by the semi-submersible rig Transocean 8 and drilled to TD at 3209.5\r\nm in the Early Jurassic Eirikson Formation. Shallow gas was indicated from mud\r\ngas and MWD at several levels between 440 m and 603 m. Gas influx occurred\r\nduring a wiper trip back from 601 m to the 30" casing shoe at 261 m. Otherwise\r\ndrilling proceeded without any significant issues. The well was drilled with\r\nspud mud down to 378 m and with KCl/polymer mud from 378 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eFormation tops came in approximately as\r\nprognosed. Top Viking Group was encountered 2534 m and consisted of 82 m\r\nDraupne Formation and 177 m Heather Fo",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}