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    "wlbNpdidWellbore" : 3117,
    "wlbName" : "25/11-19 SR",
    "wlbHistory" : " \u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n \r\n \u003cp\u003eWell 25/11-19 S was\r\n drilled on Licence 001, awarded in the first licence round in 1965. It was the\r\n last appraisal well on the Balder Field before it was decided to go ahead with\r\n Plan for Development in 1995. The well was located to penetrate the top\r\n reservoir of " Balder Mound 6" in a well-defined structurally high\r\n position. The primary target was a massive sand in the Hermod Formation; the\r\n secondary target was the Eocene Balder Formation Sand. The general objective of\r\n well 25/11-19 S was to reduce the range of uncertainty associated with the\r\n reserve basis for Balder Mound 6. The well was drilled as a directional well\r\n for potential re-entry as a future horizontal producer. \u003c/p\u003e\r\n \r\n \u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n \r\n \u003cp\u003eAppraisal well\r\n 25/11-19 S was spudded with the semi-submersible installation "Vildkat\r\n Explorer" on 24 April 1995 and drilled to TD at 2250 m (2019 m TVD SS) in\r\n Triassic (Late Rhaetian) sediments of the Statfjord Formation. The well was\r\n drilled with seawater spud mud down to 1015 m and with oil based "Safemul"\r\n mud from 1015 m to TD. Shallow gas was neither prognosed nor observed. The well\r\n was drilled vertically down to 1032 m before starting to build angle and at top\r\n of the primary target, the Hermod sand, the deviation was 38.2deg.  at an azimuth\r\n of 170.4deg. An 8 1/2" inch hole was drilled to an intermediate depth of\r\n 2096 m where an extensive wire line logging program was performed. Then an 8\r\n 1/2" hole was drilled to TD of 2250 m and final logging was performed. The\r\n 25/11-19 S confirmed oil in the Hermod sand. A good oil water contact was\r\n defined by wire line logs, extensive MDT sampling and pressures at 1922.5 m\r\n (1760.5 m TVD SS) in the Hermod reservoir sand. Furthermore, gas reserves were\r\n proved in the secondary target, the Balder Formation sand, and pressure data\r\n indicated a potential GOC at 1839.2 m (1694.8 m TVD SS). Three cores were cut\r\n in the Sele and Hermod Forma",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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