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    "wlbName" : "6407/7-1 S",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 6407/7-1 S is located ca 30 km west\r\nof the Draugen field on the Njord A-structure in the southern part of the\r\nHalten Terrace. The apex of the A-structure is at about 2600 m MSL. The\r\nstructure has a complex geology with dense faulting. The objective was to test\r\nfor hydrocarbons in the structure, with the Middle and Early Jurassic as the\r\nprimary and secondary targets. In addition, the well should obtain reservoir\r\ndata from the Middle and Early Jurassic reservoir sandstones and establish a\r\nbetter stratigraphical, sedimentological, and structural knowledge of the area.\r\nThe well should penetrate a deep reflector interpreted to be the "Top\r\nMiddle Triassic Evaporite reflector". The prognosed total depth was 4025\r\nm.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWildcat well 6407/7 1 S was spudded with\r\nthe semi-submersible installation Polar Pioneer 19 October 1985 and was drilled\r\nto TD at 3950 m in Triassic rocks. Ca 30 days (17%) of the rig time was down\r\ntime. Major causes for this were sub sea problems with orienting the temporary\r\nguide base, bad weather, and fishing for various objects and stuck tools. In\r\naddition the section from ca 746 to 1177 m required wiper trips and a lot of\r\nreaming to clean the hole. This added several days to the drilling time. The\r\nwell was vertical down to 1177 m, it built deviation angle up to maximum 9.8\r\ndeg at 1460 m, and had a deviation between 9.8 and 3.0 deg from there to TD. The\r\nwell was drilled with spud mud down to 1172 m, with KCl/polymer mud from 1172 m\r\nto 2710 m, with gel/polymer mud from 2710 m to 3601 m, and with\r\ngel/lignosulphonate mud from 3610 m to TD.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe top of the reservoir came in at 2759\r\nm, 70.5 m higher than prognosed. Oil was discovered in three separate reservoir\r\nunits. The upper reservoir (2759 - 2783.5 m) consisted of sandstones belonging\r\nto the Fangst Group and Ror Formation. Relative pressure in this unit was 1.35\r\ng/cc. The main reservoir (2839 -2988 m) consisted of sandstones be",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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