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公开(公告)号:US08491013B2
公开(公告)日:2013-07-23
申请号:US11854283
申请日:2007-09-12
CPC分类号: E21B33/05 , Y10T403/32893
摘要: A cementing swivel includes an outer stationary member having a cement port, an inner rotating member with a bore therethrough, and a torque indicating member coupled to the outer stationary member and configured to provide a visual indication that a predetermined torque load has been reached.
摘要翻译: 固井旋转体包括具有水泥口的外部固定构件,具有穿过其中的孔的内部旋转构件,以及联接到外部固定构件并被构造成提供已经达到预定扭矩载荷的视觉指示的扭矩指示构件。