连接接头滑脱失效是圆螺纹套管损坏的主要形式。
Pull-out failure is the main damage form of round thread casing connections.
连接两节管子(生产油管、套管或衬管等)所用的带螺纹的连接件。
A threaded coupling used to join two lengths of pipe such as production tubing, casing or liner.
该接头也许是用螺纹与套管连接在一起，或焊接在一起，以及可能还有一个法兰或卡箍连接与防喷器组或井口配接。
This adapter may be threaded or welded onto the casing, and may have a flanged or clamped connection to match the BOP stack or wellhead.
接管和固定套管互以螺纹或卡槽式连接固定。
The connecting pipe and the fixed sleeve pipe are fixedly connected mutually by a screw thread type or a clamping slot type.
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.
无接箍式套管靠管体两端的螺纹连接，所以套管外径尺寸小，可增大环形间隙，便于套管下入和提高固井质量。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
上套管和下套管通过螺纹管连接在一起。
The upper sleeve is connected with the lower sleeve via a threaded tube.
为此，国家在“九五”期间专门立项对套管质量进行攻关，其中提高套管螺纹连接性能是极其重要的核心组成部分。
In view of the above, in order to improve the performance of thread connection, a special research project was set up during the period of Ninth Five-year Plan.
为此，国家在“九五”期间专门立项对套管质量进行攻关，其中提高套管螺纹连接性能是极其重要的核心组成部分。
In view of the above, in order to improve the performance of thread connection, a special research project was set up during the period of Ninth Five-year Plan.
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