seamless oil-well tube 无缝油井管
oil-well tube 油井管
oil well tube steels 油套管钢
C90 Oil-Well Tube Steel C90级油井管钢
c 90 oil-well tube steel c级油井管钢
j oil well casing tube j55油井套管
mn oil well steell tube mn5油井管钢
J55 oil well casing tube J55油井套管
With the deterioration of oil extracting condition and the increasingly high demand of the performance of the oil well tube, the development of high performance oil well casing has a vital practical significance.
随着采油条件越来越恶劣，对油井管的要求也越来越高，研制高性能油井套管有着重要的实际意义。
参考来源 - 高性能油井钢管裂纹实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The utility model relates to a corundum sieve tube used in the field of oil field and oil well production.
本实用新型涉及油田油井开采领域中用到的一种刚玉筛管。
There are a series of problems in batch production of plating chromium for lining inner bores of input tube in oil well pump such as parameter choice, clamp design, bath care and adjust.
油井抽油泵输入泵衬套内孔尺寸镀铬批量生产中存在着工艺参数准确选择、夹具合理设计、槽液维护和调整等一系列问题。
The purpose of perforation is penetrating the casing tube, cement sheath and a certain depth of the formation and forming unhindered channels for oil and gas flowing into the well casing.
射孔目的就是射穿套管、水泥环和地层内一定的深度，为地层的油气流入至井筒，形成一个顺畅的通道。
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