石油供应是通过渠道或钻管螺纹。

Oil supply is made through drilled channels or pipe thread.

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可在钻井、完井、采油、修井等方面进行有效应用的可膨胀管技术，被认为是2 1世纪石油钻采行业最有前景的技术之一。

Expandable Tubular technology is one core technology in petroleum industry in 21st century, which is used in drilling, completion, recovery and workover.

youdao

可在钻井、完井、采油、修井等方面进行有效应用的可膨胀管技术，被认为是2 1世纪石油钻采行业最有前景的技术之一。

Expandable Tubular technology is one core technology in petroleum industry in 21st century, which is used in drilling, completion, recovery and workover.

youdao