Home > Archive>Volume 43, Issue 6, 2016 >72-74,80
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Research and Application of the Casing Stuck Releasing Device in Loose Strata
CSTR:
[cstr]
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Affiliation:

313 Geological Team, Bureau of Geology and Mineral Exploration of Anhui Province,313 Geological Team, Bureau of Geology and Mineral Exploration of Anhui Province,313 Geological Team, Bureau of Geology and Mineral Exploration of Anhui Province

Clc Number:

P634.8

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    Abstract:

    Casing is commonly used for wall protection in quaternary loose strata drilling and pulled out after completing construction. But it is easily to be stuck by attachments from the outside, pulling out is difficult. A casing stuck releasing device was developed to loose the outside wedged attachments for casing unfreezing and pulling out. This device has been used in boreholes with desired effect.

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History
  • Received:December 02,2015
  • Revised:December 02,2015
  • Adopted:May 25,2016
  • Online: June 16,2016
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