中国石化获得实用新型专利授权:“一种用于膨胀套管的辅助密封装置”

证券之星企业动态
Mar 03

证券之星消息,根据天眼查APP数据显示中国石化(600028)新获得一项实用新型专利授权,专利名为“一种用于膨胀套管的辅助密封装置”,专利申请号为CN202520794630.4,授权日为2026年3月3日。专利摘要:本实用新型提供了一种用于膨胀套管的辅助密封装置,包括:辅助密封套管,辅助密封套管的内壁设置有凸起,在套管公接头与套管母接头连接后,凸起抵接于套管母接头的端面与套管公接头的端面之间的...

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