The influence of high pressure on thread contact stress of casing joints in gas wells;
高压对气井套管接头螺纹接触应力的影响研究
In high-temperature (HT) -high-pressure (HP) gas wells and steam injection wells, the heat stress caused by temperature difference had great effect on contact pressure of casing joints.
在高温高压气井或注蒸汽的热采井中,变温引起的温度应力(即热应力)将对套管接头的接触压力产生一定的影响,高温差引起的套管接头的接触压力分布变得更加不均,当温差达到一定值时,套管接头内的等效应力将接近材料的屈服强度,使螺纹接触处进入塑性变形状态,从而影响了套管接头的密封性。
Pull-out failure is the main damage form of round thread casing connections.
利用弹塑性有限元法,研究了圆螺纹套管接头发生滑脱失效的过程与机理,然后通过全尺寸试验,分析了这种接头在失效过程中的应变分布及变形情况,并验证了有限元结果。
Gluing is one of the failure forms for casing connection,and it is occurred in the thread during casing makeup.
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。
The distribution of the Stress in casing connection, the value of make-up torque and thread off load are studied when the casing connection is assembled or loaded with internal pressure and axial tension, which are very important for gluing, leakage and thread off failure analysis.
套管接头在装配、内压和拉伸载荷工况条件作用下，沿接头的应力分布规律及上扣扭矩和滑脱力的大小，对分析套管接头粘扣、泄漏和滑脱失效有重要参考价值。
Copper tube joints-Sockets
GB/T11618.1-1989铜管接头套管接头
tooljointcasing contact force
工具接头与套管接触力
Sleeving pipe joints
GB/T14414-1993套接式管接头
A bushing used to secure a pipe joint.
套圈，箍用来缚紧管子接头的套圈
Union for butt joints--Assembly
GB/T3756.1-1983卡套式对接直通管接头
Male elbow for butt joints--Assembly
GB/T3758.1-1983卡套式锥螺纹对接直角管接头
Angle swivel screw--Assembly
GB/T3750.1-1983卡套式铰接管接头
Weld male connector-Assembly
GB/T3747.1-1983卡套式焊接管接头
Male connector for butt joints--Assembly
GB/T3755.1-1983卡套式锥螺纹对接直通管接头
Straight thread connector for butt joints--Assembly
GB/T3754.1-1983卡套式端对接直通管接头
Straight thread elbow for butt joints--Assembly
GB/T3757.1-1983卡套式端对接直角管接头
Bite type tube fittings--Nuts for butt joints
GB/T3760-1983卡套式管接头用对接螺母
INFLUENCE OF TEMPERATURE ON CONTACT PRES- SURE OF CASING JOINTS
温度对套管接头螺纹接触压力的影响
Flared type tube fittings--Sleeve
GB/T5646-1985扩口式管接头管套
Contact and Connection Behavior in Finite Element Analysisof Casing Thread Joints
套管螺纹接头连接性能的接触有限元分析
Bite type tube fittings--Nuts
GB/T3759-1983卡套式管接头用螺母
Bulkhead union--Assembly
GB/T3748.1-1983卡套式隔壁直通管接头
Straight thread connector--Assembly
GB/T3733.1-1983卡套式端直通管接头