浅层套管腐蚀分析与技术对策

Shallow casing corrosion analysis and technical countermeasures

随着渤海油田的不断开发,油田开发生产到了中后期,各种问题开始逐步显现。特别要注意的是渤海油水井套管损害问题,由于这些套管常年不断地被底层腐蚀、磨损、发生塑性变形,并受到各种施工措施等因素的影响,套管的损害、破坏等问题也逐渐加剧,不但会使得油水井的产量和注入量减少,产层也会受到环境污染,甚至还会导致海洋环境的污染、油水井报废等严重后果。在套管存在的诸多困难中,浅层套管的腐蚀穿孔存在重大的溢油环保风险。因此,对于油水井浅层处的套管腐蚀检测及对于浅层套管严重腐蚀的主动防御性治理,成为海上石油事业发展的必要安全保障。

With the continuous development of Bohai oilfield,the oilfield development and production reached the middle and late stage,and various problems began to appear gradually.Special attention should be paid to the casing damage of oil and water wells in the Bohai Sea,These casings are constantly affected by factors such as bottom corrosion,wear,plastic deformation and various construction technical measures,Casing damage,damage and other problems are also gradually aggravated,which will not only reduce the production and injection of oil and water wells,The pay formation will also be polluted by the environment,and sometimes even lead to serious consequences such as pollution of the marine environment and scrapping of oil and water wells.Among the many difficulties of casing,the corrosion perforation of shallow casing has a significant risk of oil spill and environmental protection.Among the many difficulties of casing,the corrosion perforation of shallow casing has a significant risk of oil spill and environmental protection.