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经对244.47mm套管内用大钻头直接扫水泥悬空塞弊端剖析,得出在244.47mm套管内应用两次管柱扫水泥悬空塞的工艺技术优势,即应用钻塞管柱钻塞时,水泥钻屑量少,且可反循环洗井,大块钻屑可靠自重沉降,为今后大套管试油井扫水泥悬空塞提供了新的解决方案。
After 244.47mm cannula with a large drill directly to sweep the shortcomings of cement suspended plug, obtained within 244.47mm casing application of two column sweep cement suspended plug technology advantage, that is, the application of the drill string drill, the cement drill Small amount of debris, and can reverse circulation washing, large drill cuttings settle their own weight, for the future big casing test wells cement floating plug provides a new solution.