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由于一九七四年石油价格上涨,人们开始大力开发新油田、新气田,并对从前那些因条件恶劣不赚钱而封闭的油井又重新进行开采。油气田的继续开发,只有在更恶劣条件下,更偏僻地区进行深井作业。这样对优质石油管材的需求量就日益增加。为了满足需求,因此制订了提高钢管生产和加工设备能力的计划,目前已有很大一部分管加工设备安装投产。据估计,自一九八○年以来,仅美国的制造厂家就耗资20亿美元用于生产石油管加工设备。本文旨在探讨平头石油管矫直、管端加工和检验工艺的某些发展。石油管既可用无缝管,也可用焊接管。低强度管通常经轧制后直接送到精加工区加工;而高强度管一般须在加工前进行淬火和回火。不论是焊接管、无缝管或是经过热处理的钢管在作业线上的加工处理工艺差别甚微。
Due to the rise of oil prices in 1974, people began to vigorously develop new oil fields and new gas fields, and re-opened the wells that were previously closed due to poor conditions and not profitable. The continued development of oil and gas fields will only carry out deep-well operations in more remote areas under worse conditions. This demand for high quality oil pipe is increasing. In order to meet the demand, a plan was put forward to improve the capacity of steel pipe production and processing equipment. A large part of the pipe processing equipment has been installed and put into production. It is estimated that only U.S. manufacturers have spent two billion U.S. dollars on oil pipe processing equipment since 1980. This article aims to explore some of the development of flathead tubing straightening, pipe end processing and inspection processes. Oil pipe can be used seamless pipe, welded pipe can also be used. Low-strength pipe is usually sent directly to the finishing area after rolling; while high-strength pipe is generally quenched and tempered before processing. Whether it is welded pipe, seamless pipe or heat-treated steel pipe in the line of processing technology is very different.