{
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  "links" : [
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  "LayerId" : 254,
  "LayerName" : "Wellbore - History",
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    "wlbNpdidWellbore" : 887,
    "wlbName" : "34/10-31",
    "wlbHistory" : "\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eGeneral\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eWell 34/10-31 was drilled on the Gullfaks\r\nField to drain possible shallow gas sands at the platform A location on the Gullfaks\r\nField. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eOperations and results\u003c/span\u003e\u003c/b\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eAppraisal well 34/10-31 was spudded with\r\nthe semi-submersible installation West Venture on 8 April 1986 and drilled to\r\nTD at 420 m in Pliocene sediments in the Nordland Group. No significant problem\r\nwas encountered in the operations. The well was drilled with water based mud.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eTop Pliocene was encountered at 295 m. Electric\r\nlogs through the 12 1/4" section proved three shallow gas sand layers at\r\n344 - 346 m, 350 - 352 m, and 384.5 and 385.5 m. Average gas saturation in the\r\nthree sands were estimated to 60%, 15%, and 40%, respectively.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eNo cores were cut and no fluid samples\r\nwere taken. Cuttings samples were taken every 5 m from 270 m to TD. \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eThe well was permanently abandoned on 14\r\nDecember 1985.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cb\u003e\u003cspan lang=EN-GB\u003eTesting\u003c/span\u003e\u003c/b\u003e\u003cspan lang=EN-GB\u003e \u003c/span\u003e\u003c/p\u003e\r\n\r\n\u003cp class=MsoBodyText\u003e\u003cspan lang=EN-GB\u003eA production test was conducted from the\r\ninterval 344 to 346.5 m. Shallow gas was produced from 17 February up to 4\r\nApril when it was terminated due to an upcoming strike. A total of 2453203 Sm3\r\ngas was produced at an average rate of ca 65000 Sm3 gas/day during the main\r\ndraining flow. The gas gravity was 0.552 - 0.560 (air = 1). The reservoir\r\ntemperature was reported to be 14 deg C.\u003c/span\u003e\u003c/p\u003e\r\n\r\n\r\n",
    "wlbHistoryDateUpdated" : "2026-02-24T00:00:00"
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}