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Development and Application of SSD-96 Type Safety Wire-line Core Overshot
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The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development,The Institute of Exploration Technology, Hebei Provincial Bureau of Ge-exploration and Mineral Development

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P634.4 9

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    Abstract:

    In order to improve the technical level of wire-line core drilling and remedy the defects of common wire-line overshot, SSD-96 type wire-line core overshot is developed, by which the opening of fishing hook can be adjusted through controlling the steel wire winch on the ground surface to complete the process from fishing to releasing. The paper introduces the principles of fishing and releasing with the safety releasing methods after conveying the inner tube to the predetermined position while encountering difficulties or dry hole and water shortage. This overshot has good effect in the field application test in Zhangying mining area of Chengde.

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History
  • Received:January 31,2016
  • Revised:January 31,2016
  • Adopted:March 18,2016
  • Online: April 12,2016
  • Published:
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