双级高效坐封连通器的研制及应用

China Petroleum Machinery(2006)

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Abstract
针对目前油水井作业中使用的底部割缝滑套+压差式封隔器组合工艺管柱存在的问题,研制了双级高效坐封连通器。该连通器由上接头、割缝钢球、密封圈、销钉、割缝滑套、连接套、坐封钢球、坐封滑套、调节弹簧和下接头等组成。双级高效坐封连通器+压差式封隔器组合成工艺管柱,不但可以保证压差式封隔器充分坐封,而且在1·5~3·0MPa低压下即可连通作业层段,现场推广应用取得了良好的效果。
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Key words
downhole operation,dual-stage and high efficiency connector,technology string,field application
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