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    "wlbNpdidWellbore" : 1839,
    "wlbName" : "1/6-6",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 1/6-6 is located ca 2 km south of\r\nthe Albuskjell Field in the southern Norwegian North Sea. The principal\r\nobjective was to test the hydrocarbon potential of Middle and Late Jurassic\r\nsandstones on the southern flank of a faulted dip closure, partially underlying\r\nthe Albuskjell Chalk Field. It was proposed to drill to a total depth of 5355 m\r\nor 200 m below the interpreted Base Late Jurassic.\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 1/6-6 was spudded with the\r\nsemi-submersible installation Dyvi Stena on 10 February 1992 and drilled to\r\nfinal TD at 5565 m (5562 m TVD), some 100 m into Triassic siltstone. The well\r\nachieved its objective, which entailed drilling 210 m deeper than plan, to a\r\nnew Norwegian depth record of 5565 m RKB. Maximum pore pressure in the well was\r\nestimated to have been 2.24 sg, higher than the worst-case scenario defined by\r\nthe well proposal. BHT was 190 deg C. Both pore pressure and BHT were the\r\nhighest yet encountered in Norway. The well was production tested under these stringent\r\nconditions. \u003c/p\u003e\r\n\r\n\u003cp\u003eIncluding additional time, the planned\r\nwork scope for the well was 179.5 days. It eventually took 395 days. Of these,\r\nonly 204.5 days (51.8%) was considered productive time. Five incidents\r\naccounted for 75% of lost time. These were: dropped 10-3/4" casing, failed\r\nwellhead, well control incident, failure of the HPC tieback packer and waiting\r\non weather. The problems involved two sidetracks. The dropped 10-3/4"\r\ncasing with TD at 4467 m led to the first sidetrack, which was made from kick-off\r\nat 2560 m. Then, after drilling to 3284 m and tripping out, a second sidetrack\r\nwas accidentally made from 2522 m.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was drilled with seawater and\r\nviscous sweeps to 1127 m and with gypsum / polymer mud from 1127 m to 4466 m in\r\nthe first hole. The first sidetrack was drilled with gypsum/polymer mud from\r\nkick-off to TD. The second and final sidetrack was drilled with VISPLEX for\r\nsidetracking, then with HF PLUS (glyc",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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