本文選題：輸油管道 + 雜散電流　； 參考：《材料保護》2017年02期

【摘要】：雜散電流干擾對油氣管道造成很大的危害和破壞,如何有效地檢測評價并制定合適的防護對策是油氣管道雜散電流防護的關鍵。基于雜散電流不同檢測方法和排流應用實踐,開展了輸油管道雜散電流綜合檢測評價及防護研究。結果表明:采取全線檢測與專項檢測相結合方式,綜合運用CIPS(密間隔管地電位測試)、SCM(雜散電流智能測試儀)、電位梯度、電位和電流監(jiān)測等多種檢測評價方法,結合現(xiàn)場開挖分析,可準確確定管道雜散電流干擾類型及對管道的影響;檢測的輸油管道受到較嚴重的直流雜散電流干擾及一定的交流雜散電流干擾而發(fā)生局部腐蝕;通過管地電位測量對雜散電流排流整治措施進行了效果分析與評定,建議了管道雜散電流干擾防護對策。提出應加強管道雜散電流源頭控制,同時綜合運用多種檢測、監(jiān)測技術,有效分析各種干擾因素和腐蝕狀況,制定科學合理的治理方法和防護對策,為管道完整性管理提供依據(jù)。
[Abstract]:Stray current interference causes great harm and damage to oil and gas pipeline. How to effectively detect, evaluate and formulate appropriate protection countermeasures is the key to the protection of stray current in oil and gas pipeline. Based on the different detection methods of stray current and the practice of drainage application, the comprehensive detection, evaluation and protection research of stray current in oil pipeline are carried out. The results show that by combining the whole line detection with special detection, CIPS (dense spacer earth potential test) and SCM (stray current intelligent tester, potential gradient, potential and current monitoring) are used comprehensively. Combined with site excavation analysis, the type of stray current interference and its influence on pipeline can be accurately determined, and the local corrosion of oil pipeline detected by serious DC stray current interference and AC stray current interference can be obtained. The effect analysis and evaluation of stray current drainage treatment measures are carried out through the measurement of pipe-ground potential, and the countermeasures for protection against stray current interference in pipeline are suggested. It is suggested that the source control of stray current of pipeline should be strengthened, at the same time a variety of detection and monitoring techniques should be used synthetically, all kinds of interference factors and corrosion conditions should be effectively analyzed, and scientific and reasonable treatment methods and protective countermeasures should be formulated. Provide basis for pipeline integrity management.
【作者單位】： 中國石化撫順石油化工研究院;中國石化銷售有限公司;中國石化銷售有限公司華南分公司;
【基金】：中國石油化工集團公司資助項目(314096,315120)
【分類號】：TE973.6;TE988.2

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