前言油田经多年开采以后,由于油、水、气等介质对油水井管壁的侵蚀,油水井套管均会产生不同程度的渗漏和破坏而影响生产。为此,1984年我国从国外引进了套管修补工具。使用证明,这套装置性能先进、补井安全,是我国现有补井手段中最有效的一种机械。但是这套工具具有机械构结复杂、制造精度高、部分零件服役条件苛刻等特点,国外在出售这套套管修补工具时,未提供任何制造技术。因此,只能根据测绘分析 Foreword After many years of exploitation of the oilfield, oil and water well casing will have different degree of leakage and destruction which will affect the production due to the erosion of the wall of oil and water wells due to mediums such as oil, water and gas. To this end, in 1984 China introduced from abroad a casing repair tools. Proof of use, this set of advanced performance equipment, make-up safety, is China’s existing well-made means a most effective kind of machinery. However, this set of tools has the characteristics of complex mechanical structure, high manufacturing precision and harsh conditions of service of some parts. Foreign manufacturers did not provide any manufacturing technology when selling this casing repair tool. Therefore, only based on mapping analysis