小端带螺纹 small end thread
小端螺纹
Small end thread
以上为机器翻译结果,长、整句建议使用 人工翻译 。
无接箍式套管靠管体两端的螺纹连接,所以套管外径尺寸小,可增大环形间隙,便于套管下入和提高固井质量。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
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