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As critical components of casing strings, the performance of float collars and float shoes plays a decisive role in cementing operations. Failures of float collars and shoes not only lead to substandard cementing quality, but may even result in complete well abandonment in severe cases, causing significant economic losses. The main causes of failure stem from downhole environmental factors, operational factors, and structural or quality issues of the tools themselves. By sampling the float hoops and float shoes of the unified production batch and implementing the quality control method in line with the API SPEC 10F standard, the failure probability can be greatly reduced, the success rate of cemented operations can be effectively improved, and a reliable guarantee can be provided for the smooth progress of oil exploration work.

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Failure Cause Analysis and Process Quality Control Methods of Float Collar and Float Shoe

  • 会议论文

  • 发表日期：

    2026年

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  • Chao Wang,
  • Mengfei Zhang,
  • Junzheng Tian,
  • Xianwei Zhang,
  • Lingquan Liu

摘要

As critical components of casing strings, the performance of float collars and float shoes plays a decisive role in cementing operations. Failures of float collars and shoes not only lead to substandard cementing quality, but may even result in complete well abandonment in severe cases, causing significant economic losses. The main causes of failure stem from downhole environmental factors, operational factors, and structural or quality issues of the tools themselves. By sampling the float hoops and float shoes of the unified production batch and implementing the quality control method in line with the API SPEC 10F standard, the failure probability can be greatly reduced, the success rate of cemented operations can be effectively improved, and a reliable guarantee can be provided for the smooth progress of oil exploration work.