{
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      "title" : "The collection document"
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
  "id" : "89",
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    "wlbNpdidWellbore" : 91,
    "wlbName" : "16/7-4",
    "wlbHistory" : "\u003cp\u003e\u003cb\u003eGeneral\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eWell 16/7-4 is located ca 10 km southeast\r\nof the Sleipner Øst Field and 6 km east of the 15/9-15 gas discovery in the North Sea. The objective of the well was to test the presence of a structural trap in\r\nJurassic/Triassic sandstones on the A-North Prospect in the southwest corner of\r\nBlock 16/7. \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 16/7-4 was spudded with the\r\nsemi-submersible installation Glomar Biscay II on 15 October 1982 and drilled\r\nto TD at 2781 m in the Triassic Group. The well was drilled with seawater\r\nand gel all through.\u003c/p\u003e\r\n\r\n\u003cp\u003eOnly 1.5 m Jurassic sediments (Draupne\r\nFormation) were present in well position. The Triassic Group sandstone was\r\nencountered at 2521.5 m and held a 117.8 m gas/condensate column from top and\r\ndown to 2639.3 m (-2314.3 m subsea). The gas-bearing sandstones were found\r\ninterbedded with a few thin shales. The reservoir quality was best near the top\r\nof the sand, becoming gradually poorer downwards. The net gas sand was 85.4 m\r\nwith 23% porosity and 36% average water saturation. No shows were reported from\r\nabove or below the hydrocarbon-bearing interval in the well.\u003c/p\u003e\r\n\r\n\u003cp\u003eSix conventional cores were cut from 2568\r\nto 2681.5 m to in the Jurassic - Triassic interval. One Multi Formation Tester\r\n(MFT) fluid sample was taken at 2638.5 m. It recovered 1.2 litres of 57 deg API\r\ncondensate, 1.3 Sm3 gas and 2 litres of water.\u003c/p\u003e\r\n\r\n\u003cp\u003eThe well was permanently abandoned on 6\r\nDecember 1982 as a gas/condensate discovery.\u003c/p\u003e\r\n\r\n\u003cp\u003e\u003cb\u003eTesting\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp\u003eTwo drill stem tests were performed in\r\nthe Triassic Group. \u003c/p\u003e\r\n\r\n\u003cp\u003eDST 1 at 2590.5 - 2597 m flowed 199 Sm3\r\ncondensate and 385110 Sm3 gas /day through a 42/64" choke. The\r\ngas/condensate ratio was 1938 Sm3/Sm3, the oil gravity was 58 deg API, and the\r\ngas gravity was 0.791 (air = 1).\u003c/p\u003e\r\n\r\n\u003cp\u003eDST 2 at 2525 - 2535 m flowed 253 Sm3\r\ncondensate and 472890 Sm3 gas /day through a 42/64" choke. The\r\ngas/condensate ratio was 1871 Sm3/Sm3, the oil gravity was 59 deg API, and",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
  }
}