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    "wlbNpdidWellbore" : 3062,
    "wlbName" : "25/8-10 S",
    "wlbHistory" : " \u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n \r\n \u003cp\u003eWell 25/8-10 S is\r\n located north of the Grane Field. The well was drilled and tested to obtain\r\n representative fluid samples, production characteristics, and reservoir\r\n permeabilities in the Forseti Prospect in the Hermod - Middle Heimdal\r\n 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\u003eExploration well\r\n 25/8-10 S was spudded with semi-submersible drilling installation\r\n "Deepsea Trym" on 29 April 1997\r\n and drilled to TD at 1749.5 m in the Late Paleocene Lista Formation. The\r\n original 25/8-10 S well was drilled with a slightly deviated profile (+/- 6\r\n degree maximum angle) to a depth of 1749 m MD RKB. Due to a mechanical problem,\r\n which occurred after coring at 1722-1749 m, the well was plugged back and a\r\n technical sidetrack (25/8-10S T2) was kicked off at 1076 m and drilled to the\r\n original geologic objective at a total depth of 1890 m in the Early Paleocene\r\n Ekofisk Formation. Well 25/8-10 S was drilled with seawater and bentonite\r\n sweeps down to 1091 m and with oil based "Ancovert" mud from 1091 m\r\n to TD. The technical sidetrack 25/810 S T2 was drilled with oil based with\r\n "Ancovert" mud. The sidetrack\r\n penetrated 18 m (net pay) of oil filled sand in the Hermod - Middle Heimdal\r\n formation with an OWC, based on logs, at 1755.5 m TVD SS. The pay zone\r\n consisted of three sand intervals. One core was cut in the 25/8-10 S wellbore\r\n in the interval 1722 m to 1749.65 m (Sele, Hermod, and Lista Formations). A\r\n second core was cut in the 25/8-10 S T2 sidetrack in the interval 1749 m to\r\n 1786 m. (Lista and Heimdal Formations). After wire line logging the 25/8-10S T2\r\n well a drill stem test of the upper sand interval, in the Hermod Formation, was\r\n performed. Fluid samples were taken during the DST. The well was permanently\r\n abandoned on 5 June 1997 as an oil and gas discovery, named the 25/8-10 S\r\n Ringhorne Discovery.\u003c/p\u003e\r\n \r\n \u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n \r\n \u003cp\u003eThe interval from\r\n 1727.0 m to 1740.5 m (1698.6 - 1711.9 m TV",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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