KY65-14/Ⅳ型偏心解卡采油井口装置

Model KY65-14/Ⅳ eccentric wellhead

KY65-14/Ⅳ型偏心解卡采油井口装置是针对传统的井口装置轴承易腐蚀、寿命短,电缆缠卡不易解卡,以及油管螺纹经常断裂等问题而改进设计的。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。装置的关键技术是油管挂旋转时,通过两组偏心距的组合,来实现油、套管间的间隙变化,保证油管挂在360°范围内转动而井下油管接箍不与套管发生干涉,使测试仪器顺利通过。3口井的工业试验证明装置的各项性能指标己达到设计要求,装置已在大庆油田第五采油厂300多口新井推广应用。

Model KY65-14/Ⅳ eccentric wellhead is modified from the conventional wellhead. It is composed of casing flange, casing cross joint, wellhead valves, tubing hanger, tubing head cross joint and accessories. By combining two groups of eccentricities, the wellhead realizes changes of the casing-tubing clearance, and prevents the downhole tubing couplings and the casing from interacting, therefore the well testing tools can be run easily when the tubing hanger rotates.