粘扣是套管接头的失效形式之一，它发生在套管上扣操作过程中的螺纹处。

Gluing is one of the failure forms for casing connection, and it is occurred in the thread during casing makeup.

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传统的套管接头不能满足连接与密封要求，并设计出了一种新型的膨胀连接螺纹结构。

Conventional connector for casing string can't meet the demand of seal and connection in solid expandable tubular and presented a new thread structure for an expandable casing connector.

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粘扣是套管接头的失效形式之一，它发生在套管上扣操作过程中的螺纹处。

Pull-out failure is the main damage form of round thread casing connections.

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