{
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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1131,
    "wlbName" : "25/5-1 A",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well\r\n25/5-1 A was drilled as a sidetrack to well 25/5-1. The wells are located in\r\nthe Northern part of block 25/5 near the crest of a westward tilted Jurassic\r\nfault structure that straddles both block 25/5 and block 25/2.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe main purpose of\r\nthe well was to prove additional accumulation and if possible determine an\r\noil/water contact that might be compared with well 25/5-1. Also checking a\r\npossible spill point through the main fault mapped 4 km SSW of well 25/5-1.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eOperations and results\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eAppraisal well\r\n25/5-1A was spudded by Golar-Nor offshore a/s semi-submersible installation\r\nNordtrym 1 August 1987, and completed 16 September 1987 at a depth of 3432 in\r\nthe Early Jurassic Drake Formation. The Vestland Group came in at 3312 m\r\n(3050.9 m TVD MSL), 91.9 m TVD deeper than in 25/5-1 but with the same\r\nthickness as in 25/5-1. Top Dunlin Group / Drake Formation came in at 3403 m\r\n(3126.7 m TVD MSL). The whole reservoir was oil-saturated, confirming oil down\r\nto at least 3126.4 m TVD MSL, very close to the OWC that was estimated from the 25/5-1\r\npressure gradient data. However, a definite OWC was not observed. All in all\r\nthe well supported a total vertical oil column of 166 m as estimated from well\r\n25/5-1. The well was plugged and abandoned as an oil appraisal well.\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\r\nwas performed.\u003c/p\u003e\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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