A wellhead component or a profile formed in wellhead equipment in which the casing hanger is located when a casing string has been installed.

在套管柱安装后在放置套管悬挂器的井口装置中的部件或型面。

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The casing hanger provides a means of ensuring that the string is correctly located and generally incorporates a sealing device or system to isolate the casing annulus from upper wellhead components.

套管悬挂器可确保套管柱被正确地放置，它一般包括一个密封装置，以便将套管环形空间与上部的井口部件隔离。

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It is composed of casing flange, casing cross joint, wellhead valves, tubing hanger, tubing head cross joint and accessories.

这种井口装置由套管法兰、套管大四通、井口阀、油管挂、油管挂体及相关附件组成。

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