摘要
本文对埋地钢质油气管道检验检测法规标准进行了系统梳理,详细阐述了宏观检查、敷设环境调查、防腐层检查、阴极保护系统测试、穿跨越段检查、开挖直接检验等6个外检测项目的检测要求、检测方法、检测设备、检测实施注意事项及检测结果评判依据.结合笔者多年的实际检测工程经验,对各个检测项目可能发现的问题进行了举例,并将检测实践中发现的典型缺陷进行了展示,可为埋地钢质油气管道建设、施工、运营、检验检测及维护维修人员提供参考,以期共同保障油气管网的安全、平稳运行.
Abstract
This article systematically reviews the relevant regulations and standards for inspection and testing of buried steel oil and gas pipelines,and elaborates in detail on the inspection requirements,methods,equipment,implementation precautions,and evaluation criteria for six external inspection items,including macroscopic inspection,laying environment investigation,anti-corrosion layer inspection,cathodic protection system testing,crossing section inspection,and excavation direct inspection.Based on the author's years of practical testing engineering experience,examples are given to illustrate the problems that may be discovered in various testing projects,and typical defects discovered in testing practice are demonstrated.This can provide reference for the construction,operation,inspection,testing,and maintenance personnel of buried steel oil and gas pipelines,in order to jointly ensure the safe and stable operation of the oil and gas pipeline network.
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