8种管线内防腐蚀技术在胜利油田的中试应用及性能评价  

Application and Evaluation of Eight Kinds of Inside Anticorrosion Technique for Pipelines Used in Shengli Oilfield

作　　者：龙媛媛[1] 石仁委[1] 柳言国[1] 隋国勇[1] 吕德东[1] 

机构地区：[1]胜利油田分公司技术检测中心腐蚀与防护研究所,山东东营257000

出　　处：《材料保护》2007年第4期53-54,57,共3页Materials Protection

摘　　要：通过宏观检查、交流阻抗测试、电火花检漏测试、附着力试验、抗冲击性试验、耐化学性试验和微观形貌分析等手段,对H87涂层管、HT515涂层管、EP-67玻璃鳞片涂层管线、玻璃钢、钢骨架复合管、尼龙复合管、PE内衬管、玻璃釉内衬管等8种管线内防腐蚀技术进行了1 a的中试应用及解剖评价。结果表明,EP-67玻璃鳞片涂层管道、钢骨架复合管、尼龙复合管的防腐蚀性能及整体性能较好,作为油田集输系统比较适宜的内防腐蚀技术有较好的应用前景;玻璃钢管不适宜在较大压力下应用;PE内衬管防腐蚀性能较好,但温度高于50℃时内衬与管道结合力差;玻璃釉内衬管、HT515和H87涂层管道的整体性能及防腐蚀性能均较差,不适宜在油田推广应用。Eight kinds of inside anticorrosion technique for coated H87,HT515 and EP-67 tubes,glass fiber reinforced plastic tube,steel-frame composite tube,nylon-based composite tube,tube with polyethylene inner liner, and tube with glass enamel inner liner were applied and evaluated in field pilot test with respect to criterion 1 a,making use of macro-observation,alternating current impedance measurement,leaking test with electric spark,adhesion test,anti-impact test,test of resistance to chemical attack,and observation of micro-morphology.It was found that the coated EP-67 tube,the steel-frame composite tube and the nylon-based composite tube had better comprehensive properties among the eight kinds of tubes tested.This could make it feasible for them to be well used as the internal anticorrosion pipelines for the collection and transfer of acidic gases and fluids in oilfields.However,the tube made of the glass fiber reinforced plastic was unsuitable under a relatively high pressure.Moreover,the tube with polyethylene inner liner had good anticorrosion behavior,but it had poor adhesion between the inner liner and the tube body at a temperature of 50 ℃ and above.Besides,the tube with glass enamel inner liner and the coated HT515 and H87 tubes had poor anticorrosion ability and comprehensive properties as well,thus they were not suitable to be used in oilfields.

关 键 词：石油集输管线 内防腐蚀技术 中试应用 解剖试验 性能评价 

分 类 号：TE983[石油与天然气工程—石油机械设备]