Slip elevator is a tool used in oil drilling and well repair operations to hold and lift drill pipes, casing, and tubing. It is particularly suitable for lifting integral joint tubing, non coupling casing, and electric submersible pump tubing strings. Designed and manufactured according to API 卡瓦式吊卡（slip - elevator）是石油钻井与修井起下钻作业中，用于卡持、提升钻杆、套管、油管的工具 ，尤其适用于整体接头油管、无接箍套管及电潜泵管柱提升，按 API Spec 8C 规范设计制造，通过卡瓦结构实现对管柱的稳固卡持，保障起下钻等作业安全高效 ，常见于石油钻采作业现场，助力管柱的起吊、下放等操作。