塔中83井钻杆断裂原因分析及预防措施  

CAUSE ANALYSIS AND PREVENT MEASURE OF DRILL PIPE FRACTURE OF TAZHONG 83 WELL

作　　者：吕拴录[1] 骆发前[1] 周杰[1] 迟军[1] 苏建文[1] 杨成新[1] 邝献任[2] 胡芳亭[1] 

机构地区：[1]塔里木油田 [2]中国石油天然气集团公司管材研究所,西安710065

出　　处：《腐蚀科学与防护技术》2007年第6期451-453,共3页Corrosion Science and Protection Technology

摘　　要：对塔中83井钻杆断裂事故进行了调查研究,对钻杆断口进行了宏观分析和微观分析,对断裂钻杆化学成分、力学性能和金相组织进行了试验分析.分析结果认为,钻杆材质符合有关标准规定,钻杆断裂属于H2S应力腐蚀断裂(Sulfide Stress Cracking,以下简称SSC).通过对该井H2S含量测定和H2S分压计算,认为该井H2S分压已远超过NACE标准规定的发生应力腐蚀的界限.根据塔里木油田现状,建议使用铝合金钻杆和防硫钻杆.This paper discribes an investigation on drill pipe fracture accident of Tazhong 83 well. It is considered that drill pipe fracture belongs to sulfide stress cracking（ SSC for short）based on macro and micro fracture analysis ,and material test and analysis for chemical composition, mechanical property and metallography. It is found that H2 S partial pressure in this well is far exceeded the one specified in NACE standard per measure the H2S content and calculating. It is suggested that aluminium alloy drill pipe and drill pipe resisting to S should be used in Tarim oil field.

关 键 词：钻杆 SSC H2S 断裂 

分 类 号：TG172.9[金属学及工艺—金属表面处理]