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  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 1512,
    "wlbName" : "2/7-19 R",
    "wlbHistory" : "\r\n\r\n\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 2/7-19 R is a re-entry of well\r\n2/7-19, which was drilled in 1980/81 by the semi-submersible Borgsten Dolphin.\r\nThe well encountered gas in Early Cretaceous sandstones, but was suspended in\r\nFebruary 1981 due to a BOP system that was not rated to allow a DST test to be\r\nperformed. RFT tests measurements indicated a possible wellhead pressure of\r\n11200 psi, while the BOP was rated to 10000 psi. A 7" liner was run to a\r\ndepth of 4839 m and cemented, but not perforated. The purpose of the re-entry\r\nwas to test 43 m of gross pay distributed in four sand lenses from 4712 to 4839\r\nm. The DST test was designed such that it would be possible to keep the well\r\nfor future production if flow rates were commercial.\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 2/7-19 was re-entered\r\n(2/7-19 R) with the semi-submersible installation Ross Isle on 15 January 1990.\u003c/p\u003e\r\n\r\n\u003cp\u003eDuring drilling of the 2/7-19 well, only gas\r\nwas encountered. The test in the re-entry showed that the reservoir rocks were\r\ntight, but a positive feature was that oil was encountered during testing. The\r\ntest confirmed the earlier anticipated formation pressure of 860 to 895 bar. \u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 14\r\nMarch 1990 as an oil appraisal.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eOne DST test was performed from four sand\r\nlenses in the intervals 4712 - 4727 m, 4762 - 4783 m (Ula Formation), 4800 -\r\n4818 m Ula/Bryne Formations), and 4830 - 4838 m (Bryne Formation). The total\r\nnet pay in the perforated sections was 23 m. After acid treatment the well\r\nproduced hydrocarbons at a rate of 34.8 Sm3 oil and 15631 Sm3 gas /d through an\r\n11.91 mm choke. The CO2 content of the separator gas was 4.4%. The GOR was 449\r\nSm3/Sm3 but this figure is uncertain due to slugging of the well and poor rate\r\nmeasurements. The matrix/acid job performed was not effective. The stable\r\nshut-in temperature at 4628 m (gauge depth) was 169 deg C, while maximum\r\nrecorded flowing temperature was 172 deg C. It wa",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}