The fabrication of 30 inch conductor tubes for offshore drilling operation is described in this paper.
论述海洋石油勘探作业中使用的30寸隔水套管的试制过程。
The approach can decrease drilling cost and reduce drilling period, realize great economic benifit in offshore drilling operation.
采用这种方法可节约海上钻井成本，缩短建井周期，获得显著的经济效益和社会效益。
The study results have the guiding significance in improving the safety of offshore drilling operations further, utilizing the existing equipment rationally and reducing the operation cost.
这些研究成果对于进一步提高海上钻井作业的安全性以及合理使用现有设备和降低成本均具有一定的指导意义。
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