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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1677,
    "wlbName" : "34/7-16 R",
    "wlbHistory" : "\u003c\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 34/7-16 R is a re-entry of well 34/7-16,\r\nwhich was suspended due to time schedule for the rig. The well is located\r\nbetween the Statfjord and Snorre Fields on Tampen Spur in the Northern North\r\n Sea. The purpose of the re-entry was to test the hydrocarbon-bearing Brent\r\nGroup reservoir and also to drill through and test the Statfjord Formation.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 34/7-16 was re-entered (34/7-16 R)\r\non 4 September 1990 by the semi-submersible rig Treasure Saga and drilled through\r\nthe Statfjord formation to TD at 2980 m, 35 m into the Late Triassic Lunde\r\nFormation. The well was drilled with KCl mud.\u003c/p\u003e\r\n\r\n\u003cp\u003eBoth the Statfjord formation and the Lunde\r\nFormation proved to be water bearing. The Statfjord Formation (2821 - 2945 m) had\r\nan estimated average log porosity of 21.7% and a net to gross ratio of 0.56.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well suspended on 15 October 1990 as an oil appraisal.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eThree DST tests were performed in well\r\n34/7-16 R.\u003c/p\u003e\r\n\r\n\u003cp\u003eDST 1 tested the interval 2821 - 2837 m\r\nin the Statfjord Formation. The test was mainly designed to get representative\r\nsamples of Statfjord Formation water. The initial pressure and temperature at\r\nthe top perforation was 406 bar and 102 deg C. Clean water with very little gas\r\nwas produced. The gas gravity was 0.64 (air = 1). It was not possible to\r\nmaintain stable flowing conditions due to plugging at the choke manifold, but a\r\nflow-rate of 1450 m3/day at a wellhead pressure of 105 bar was measured at the\r\nend of the 12 hrs flow period. \u003c/p\u003e\r\n\r\n\u003cp\u003eDST 2 tested a four metres zone from 2454\r\n- 2458 m in the Rannoch Formation. The main objective was to evaluate the\r\nlateral extension of the two calcite cemented layers (2451 - 2453 and 2459 -\r\n2461 m). The initial pressure and temperature at the top perforation was 366\r\nbar and 90 deg C. Oil with a GOR of 55 Sm3/Sm3 was produced. The gas gravity\r\nwas 0.75 (air = 1) and the CO2 content was 0.27%. After a clean-up period, the\r\nw",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}