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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 313,
    "wlbName" : "15/3-3",
    "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 15/3-3 was drilled west of the\r\nGudrun Terrace on the east flank of the North Sea Central Graben, about 4.5 km north-east\r\nof the 15/3-1 S discovery. The main objective of the 15/3-3 well was to appraise\r\nthe complete Jurassic series up-dip of well 15/3-1 S drilled on the same\r\nstructure in 1975. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 15/3-3 is type well for the Grid\r\nFormation.\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 15/3-3 was spudded with\r\nthe semi-submersible installation Pentagone 84 on 5 January 1979 and drilled to\r\nTD at 5115 m in the Triassic Skagerrak Formation.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eSeveral water bearing sands with high\r\nporosity were encountered in the Tertiary section including the Grid, Heimdal\r\nand Ty formations. The Cretaceous had no reservoir sections and was drilled\r\nwithout gas shows. The Late Jurassic Draupne Formation was encountered at 4017\r\nm. The Draupne Formation was 208 m thick and consisted of shales with only a\r\nfew < 1 m sandstone beds. The Heather Formation was penetrated from 4225 to\r\n4522 m and contained a main Intra Heather Formation sandstone from 4260 to 4369\r\nm. This sandstone was gas and condensate bearing in the upper part down to a\r\nGOC at 4272 m. The Hugin Formation came in at 4522 m and then the Sleipner\r\nFormation at 4545 m. The Hugin Formation contained gas filled sandstone from\r\n4522 to 4527 m. Several thinner sandstones with gas followed down to a main gas\r\nfilled sandstone in the Sleipner Formation from 4588 to 4632 m. A second hydrocarbon\r\nfilled Sleipner Formation sandy interval was penetrated from 4679 to 4693 m.\r\nThe upper part down to 4687 m consisted of good sandstone, further down it was\r\ncemented.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe only oil shows in the well was rare\r\npa",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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