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内管注水泥装置是提高大尺寸套管固井质量的有效工具。本文探讨了内管注水泥的几个计算问题，还给出了现场应用实例。
Internal pipe cementing device is to improve the quality of large-size casing cementing tool. This article explores several computational problems of cementing the inner tube and gives examples of field applications.