This paper introduces a new wall protection method for drilling loose strata casing pipe wall protection.
本文介绍一种新的钻探松散地层护壁方法——套管护壁“三板斧”。
This is a reversal thinking operation concept against the pipe drilling method of casing pipe wall protection described in conventional books.
本方法与书本上所述的套管护壁跟管钻进方法有反向思维操作概念。
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