1979年以前,我国石油修井现场主要使用公锥、母锥、滑块捞矛进行修井作业。由于修井工具品种少,性能差,修井效率很低。1979年以来,我国陆续从国外引进了一些先进的修井打捞工具,经消化、吸收,目前我国已能生产打捞、切割、整形、铣磨、补接(贴)、震击、倒扣和辅助等八大类修井打捞工具,同时还制定了工具的企业标准和专业标准。修井工 Before 1979, China’s oil workover site mainly uses male cones, female cones and slide lances for workover work. Due to the small variety of workover tools, poor performance, workover efficiency is very low. Since 1979, China has successively introduced some advanced workover and salvage tools from abroad. After digestion and absorption, China has been able to produce salvage, cutting, shaping, milling, complementing, shocking, undercutting and assisting And other eight categories of workover fishing tools, but also developed a tool for enterprise standards and professional standards. Workover workers