新疆石油地质

›› 2013, Vol. 34 ›› Issue (1): 1-1.

• 论文 •    

火驱生产中井筒及地面管线腐蚀评价与防护

黄继红1，梁金中2，李 路1，姚团军1，关文龙2   

  1. (1. 中国石油 新疆油田分公司 采油一厂,新疆 克拉玛依 834000;2. 中国石油 勘探开发研究院提高石油采收率国家重点实验室,北京 100083)
  • 出版日期:2019-01-01 发布日期:1905-07-09

Corrosion Evaluation and Protection for Wellbore and Surface Pipeline by InSitu Combustion Process

HUANG Jihong1, LIANG Jinzhong2, LI Lu1, YAO Tuanjun1, GUAN Wenlong2   

  1. (1.No.1 Production Plant, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China; 2.State Key Laboratory of EOR, Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China)
  • Online:2019-01-01 Published:1905-07-09

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摘要： 利用高温高压反应釜研究了油管钢在火驱矿场腐蚀环境下的腐蚀机理，结合矿场生产特征对腐蚀风险进行了评估。结果表明，火驱试验采油井产液温度、产液含水率、井底压力和产气（液）量是影响腐蚀速率的主要因素，出现最高腐蚀速率对应的温度为120 ℃，对应的含水率为45%，且腐蚀速率随着井底压力和产气（液）量的增加而增大。在采油井稳产阶段腐蚀速率出现最高值，最易引发腐蚀。建议火驱矿场生产井的腐蚀防护从选材和添加缓蚀剂两方面进行，也可以单井针对性调控降低腐蚀速率。

Abstract: The corrosion behavior of tubing steel in fireflooding field is researched by utilizing HTHP reactor and the corrosion risks have been evaluated according to production characteristics. The results indicate that the temperature, water cut, bottomhole pressure and gas (liquid)?producing capacity of produced fluid in production well by in?situ combustion or fireflooding process are the dominant factors that affect the corrosion rate. The maximal rate appears when temperature reaches 120℃ and water cut at 45%.It is shown that the corrosion rate rises as bottomhole pressure and gas (liquid)?producing capacity rise. When production well reaches a steady phase, the corrosion rate will peak, most possibly causing the corrosion of tubing steel. It is suggested that the anticorrosion strategies should be adopted by selecting suitable materials and adding corrosion inhibitor as well as selectively controlling and reducing corrosion rate in single well

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