Through the comparison of various electrochemical protection testing techniques, we find that it is the most accurate in protective electric potential of the casing.
通过对比各种电化学保护测试法，介绍了接触测试法在对套管保护电位测量中的应用。
2
The formula deduced in this paper provides the theoretical foundation for the downhole casingprotection and prevention.
文中推导出的公式为井下套管的保护及防治提供了理论依据。
3
The causes of influence of steel casing on cathodic protection of buried pipelines are analyzed. Some Suggestions about design and installation of pipeline and cathodic protection are put forward.