Drilling technology and engineering practice for seriously lost and collapsed formation in Yangshan Mining Area
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Civil-Military Integration Geological Survey Center of China Geological Survey, Chengdu Sichuan 610036, China

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P634

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    Abstract:

    The research and application of rapid drilling techniques for drilling through severely permeable and collapsed formations is one of the urgent issues to be addressed in solid mineral exploration geological core drilling. Combined with the practice of drilling engineering in Yangshan gold mine in Gansu Province, in view of the serious leakage and collapse of the long hole section, this article summarizes a set of drilling techniques suitable for rapid exploration in this mining area, which includes wire-line core drilling and full-hole drilling blind drilling technology used to quickly passing through the formation, and cement temporary plugging, casing plugging, reaming, following pipe used to plug the formation,and analysis their application effects. At last, the understanding and thinking of drilling in the formation were proposed. This article is intended to provide a reference for drilling in similar formation.

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History
  • Received:October 08,2023
  • Revised:November 19,2023
  • Adopted:December 01,2023
  • Online: March 11,2024
  • Published: March 10,2024
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