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Construction and Cementation Technologies for Dongfenghu Geothermal Well in Benxi City
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The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development,The Fourth Geological Team of Hebei Provincial Bureau of Geological Exploration and Mineral Development

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P634

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    Abstract:

    The designed hole depth was 2000m for Dongfenghu geothermal well exploration construction project in Benxi of Liaoning Province, the well completion diameter was required to be 100mm. The construction was difficult because of the deep drilling and large completion diameter, complicated ground conditions with broken formation, leakage and caving development. This paper introduces the construction process, mainly including customized non-standard bit drilling, broken drill pipe treatment, hole reaming by pre-posed bit, cementing technology and drilling through cement plug, which can be reference for the similar projects.

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History
  • Received:April 10,2017
  • Revised:April 10,2017
  • Adopted:June 09,2017
  • Online: October 30,2017
  • Published:
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