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为了满足钻机日益增长的需求及减少作业费用，研制的挠性油管钻井系统能用于过油管和欠平衡钻井以外的常规挠性油管钻井中。过油管钻井能使现有油井进行测钻，而欠平衡钻井则能防止油层污染，缩短钻井时间。由斯伦贝谢油田服务机构的Anadrill研制的VIPER挠性油管钻井系统使用一
In order to meet the growing demand for drilling rigs and reduce operating costs, the developed flexible tubing drilling system can be used for conventional flexible tubing drilling other than overbalanced drilling and underbalanced drilling. Drilling through the tubing allows existing wells to be drilled, while underbalanced drilling prevents reservoir contamination and shortens drilling time. VIPER Flexible Tubing Drilling System Developed by Anadrill of Schlumberger Oilfield Services