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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 12,
    "wlbName" : "6610/7-1",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 6610/7-1 is located in the Helgeland\r\nBasin outside Mid Norway and was drilled on a tilted fault block in the\r\nsoutheastern corner of the block. The purpose of this wildcat well was\r\nprimarily to gather information about the hydrocarbon potential and\r\nstratigraphy of the Helgeland Basin. The main targets were sandstones of Middle\r\nto Lower Jurassic age. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe well is Reference Well for the Ror\r\nFormation.\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 6610/7-1 was spudded with\r\nthe semi-submersible installation Nordraug on 18 April 1983 and drilled to TD\r\nat 3333 m in the Late Triassic sediments Red Beds. Operations were interrupted\r\nby a 10.5 days seamen's strike. No serious technical problems occurred during\r\ndrilling. The well was drilled to 815 m using spud mud. From 815 m to 2115 m\r\nthe well was drilled with gypsum/lignosulphonate mud, and from 2115 m to TD\r\nwith gel/lignosulphonate/lignite mud. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was water bearing but\r\nhydrocarbon shows were observed on cores and cuttings in Early Jurassic\r\nsandstone beds from 2656 m to 2715 m. The Spekk Formation from 2271 m to 2315 m\r\nis a good to rich source rock with around 9 % TOC and potential for gas and\r\noil. It is more gas-prone in the lower part. It has reached early oil window\r\nmaturity in well position. The Åre Formation consists mainly of low-TOC sand\r\nwith abundant seams of coals, carbargillites and organic-rich shales. The\r\ncoals/carbargillites have TOC contents ranging 37 - 59 % and are quite\r\nliptinitic, containing kerogen type II/III-III with good potential for oil and\r\ngas generation locally and a rich overall potential for gas.\u003c/p\u003e\r\n\r\n\u003cp\u003eFour cores were cut, one from the Early\r\nCretaceous sequence and three from the Early Jurassic sands. A segregated\r\nsample was taken at 2748 m. It contained mud filtrate.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 19\r\nJune 1983 as a dry hole with oil shows in Early Jurassic sandstone.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eNo drill stem test",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}