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    "wlbName" : "7/7-1",
    "wlbHistory" : "\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 7/7-1 was the first well in license\r\n148, and was designed to drill a tilted block on the Jæren High close to the UK border. Early/Middle Jurassic events resulted in uplift and erosion, such that Jurassic\r\nsediments at the well location are missing. Due to the Tertiary uplift and\r\neastward tilting of the Shetland Platform, along with a relative drop in sea\r\nlevel, this tilting gave rise to an eastward drainage pattern. Submarine fan\r\nsandstones derived from deltaic and barrier bar complexes in the Morray Firth\r\narea were deposited in the Central Graben and on to the Jæren High. Several\r\nlobe systems developed, giving rise to continuous and periodic sandstone\r\ndeposition as the lobes migrated laterally. The eastern pinch out of these systems\r\noccurs in blocks 7/4 and 7/7. The primary objective of this well was an\r\nanticlinal closure at the Base Cretaceous Unconformity level, the C-prospect,\r\nTriassic sandstones. The secondary objective was the B-prospect, Paleocene\r\nsandstones, a possible closure along a pinch out of a sandy sequence consisting\r\nof distal turbidites. Some high amplitude anomalies indicated shallow gas\r\nbetween 241 to 395 m. The nearest one at 308 m was situated approximately 300 m\r\neast of the well location. Sticky and swelling "gumbo" clays are\r\ncommon in the area.\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 7/7-1 was spudded with the\r\nsemi-submersible installation Deepsea Bergen 30 December 1989 and drilled to TD\r\nat 3500 m in the Triassic Smith Bank Formation. The well was drilled with seawater\r\nand gel down to 572 m, with gypsum/polymer mud from 572 m to 3263 m, and with\r\nbentonite/lignosulphonate mud from 3263 m to TD. Apart from some tight hole\r\nproblems, drilling went without severe problems. No shallow gas was\r\nencountered. The well was drilled approximately 200 m into the Triassic, which\r\nconsisted of brick red sandstones, interbedded with siltstone / claystone. The\r\nPaleocene sandstones came in nearly 60 m below the prognose",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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