【摘要】 随着近年来深井、超深井的发展,对钻杆也提出了更高的要求。论文分析了深井、超深井钻井中钻杆技术的难点,从钻杆新材料、高温环境研究和失效三个方面展开,指出了这些新技术的发展现状和应用效果。更多还原

【Abstract】 Higher technical demand of drill pipe is proposed with the rapid development of deep well and ultra-deep well,the technical Difficulties of the drill pipe in deep well and ultra-deep well are analysed.There are detailed research about three aspects of new techniques that include the new materials,high temperatures and failure,and their applications and research status are discussed.更多还原