{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 458,
    "wlbName" : "34/7-5",
    "wlbHistory" : "\r\n\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 34/7-5 is located in the Statfjord Øst\r\narea of the Northern North Sea. The primary objectives of the well were to test\r\nthe reservoir potential of the Brent Group, and to determine if the oil/water\r\ncontact is the same as that found in the 33/9-7 Statfjord Øst discovery well drilled\r\nto the south southwest of this well in the neighbouring block, but on the\r\nassumed same structure. A secondary objective was to test the reservoir\r\npotential of the Statfjord Formation.\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\u003eWildcat well 34/7-5 was spudded with the\r\nsemi-submersible installation Treasure Saga on 17 January 1985 and drilled to\r\nTD at 3146 m in the Late Triassic Lunde Formation. Drilling proceeded without\r\nsignificant problems. The well was drilled with spud mud down to 930 m and with\r\ngypsum/polymer mud from 930 m to TD.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eTrace oil shows appeared in sandstone lamina\r\nin the Cretaceous from about 2380, limestones had shows from about 2488 m. The Brent\r\nGroup reservoir came in at 2502 m, approximately 60 m deeper than prognosed. Hydrocarbons\r\nwere encountered in the upper section belonging to the Ness Formation. The\r\noil/water contact could not be defined from pressure data. From shows on cores\r\nand the well logs an OWC could be placed at approximately 2521 m, in accordance\r\nwith the results from well 33/9-7. Below the OWC oil shows on sandstone\r\ndecreased gradually from 2523 m until they vanished at 2616 m. The Statfjord\r\nFormation was dry. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eEleven cores were cut. Cores 1 to 10 were\r\ncut from 2508 m to 2633 m in the Brent Group and the uppermost part of the\r\nDrake Formation. Core 1, from 2508 to 2510 gave no recovery. The core depths\r\nfor Cores 2 to 10 were from 0.5 m to 2.2 m short of logger's depth. Core 11 ",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}