现有的压裂管柱应用于大斜度超深井都存在明显的不足，影响了压裂施工成功率。
The pipe strings being used now for well fracture all have shortcomings in fracture operation of heavy-deviated and much deeper Wells, that decreases the success ratio of fracture operation.
现场施工效果表明，双封单卡分段压裂管柱在承压性能及过砂量要求上，能满足要求；
Field application results show that the string of double-sealing and single-stick subsection fracturing can meet the demands of pressurization behavior and sand amount.
斜直井压裂管柱良好的反洗井和可靠的密封性能为斜直井开采提供了一套有效的完井技术。
Better reverse washing of the fracturing string and reliable sealing property offer a set of effective completion techniques for slant hole well production.
在新疆和四川等探区，深井超深井压裂施工导致压裂管柱失效断裂，封隔器密封胶筒失效频率较高。
In the Sichuan and Xinjiang exploration area, fracturing in the deep or ultra deep Wells frequently results in the strings' breakage and the packer seal's malfunction.
在新疆和四川等探区，深井超深井压裂施工导致压裂管柱失效断裂，封隔器密封胶筒失效频率较高。
In the Sichuan and Xinjiang exploration area, fracturing in the deep or ultra deep Wells frequently results in the strings' breakage and the packer seal's malfunction.
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