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含低H2S和中等CO2气井的电化学腐蚀问题研究 被引量:9

CORROSION PROBLEMS INDUCED BY WATERS CONTAINING LOW H_2S AND MEDIUM CO_2 FROM GAS WELLS AT A GAS FIELD
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摘要 对近年来某气田低含H2S、中含CO2气井在不同产水量和产出水矿化度下的井筒碳钢管柱的腐蚀情况进行了分类分析,通过理论和室内试验研究了影响油管腐蚀的主要参数条件,明确电化学腐蚀特征.发现导致油管严重腐蚀和局部穿孔的主因是高矿化度的地层产出水、复杂的井下环境参数和特定的H2S/CO2分压,为今后减缓和控制腐蚀提出了研究方向. A survey on tubing corrosion case history ,which was induced by waters with low H2S and medium COg from gas wells in a gas field. While a review on the relevant operation parameters of production was also made. In order to understand the corrosion phenomenon of tubing steel in the field, series of corrosion test of tubing steel in well liquors was also conducted. The results demonstrate that the main factors responsible to the corrosion are the high brine content of well water,specific partial pressure of H2S and CO2 as well as the parameters of complex environments of wells. Then several measures such as surface treatment of tubing and new inhibitors etc. were proposed to solve the corrosion problems.
出处 《腐蚀科学与防护技术》 CAS CSCD 北大核心 2009年第3期257-259,共3页 Corrosion Science and Protection Technology
关键词 电化学腐蚀 气井 穿孔 高矿化度 地层产出水 electrochemical corrosion gas well perforaction high salinity formation water
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  • 1樊广锋,戴金星,戚厚发.中国硫化氢天然气研究[J].天然气地球科学,1992,3(3):1-10. 被引量:55
  • 2NACE RP0192-98, Monitoring Corrosion in Oil and Gas Production with Iron Counts[ S].
  • 3Crolet J L. Which CO2 Corrosion, Hence Which Prediction[ A]. Predicting CO2 Corrosion in the Oil and Gas Industry[ M]. London : Institute of Matreials, 1994.18.
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