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sealing arrangement for an oil and / or gas well, method for forming a seal using a sealing arrangement and oil and / or gas well
sealing arrangement for an oil and / or gas well, method for forming a seal using a sealing arrangement and oil and / or gas well
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机译:用于油和/或气井的密封装置,使用该密封装置形成密封的方法以及油和/或气井
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摘要
It is a sealing arrangement for an oil and / or gas well comprising a rotating portion and a sealing portion. rotation of the rotation portion causes the sealing portion to engage a surface of the oil and / or gas well to substantially form a seal therebetween.
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