简介:摘要TR-(N)PT型螺纹套管系列产品是海上油气田进行钻井作业时所使用的一种专用产品,其使用效率高,且可简化钻井工艺,降低成本,本项目自行设计了TR-7PT、TR-9-5/8PT-2、TR-13-3/8PT-2、TR-16PT-3、TR-20PT-4及TR-20PTA/B-3螺纹套管,对该系列套管进行套管和接头的抗拉、抗内压和抗外压的性能测试及静水压测试,实验证明该系列螺纹套管能够较好地满足连接张力以及密封性能等要求。
简介:of restoring the source cultural reality embodied in the source language in the target language that usually,equivalence of this category might be more attributable to the cultural exchange activities outside the scope of translation than to the very act of translating.,the target language is entrusted to express the cultural reality specific to the source language