Research Article
Study on the Influence of Pulse Current Cathodic Protection Parameters of Oil Well Casing
Table 5
Data difference between cathodic protection potentials in Figure
8 and in Figure
7.
| | | 500 Hz | 1500 Hz | 2500 Hz | 3500 Hz | 4500 Hz | 5500 Hz |
| | Reference electrode 1 mV | 39 | 83 | 67 | 39 | −3 | 17 | | Reference electrode 2 mV | 64.9 | 2 | −33.1 | 25.8 | −19.5 | 7.7 | | Reference electrode 3 mV | 32.8 | 21.6 | −15.1 | 61.6 | −30 | −2.2 | | Reference electrode 4 mV | 13.3 | 8.5 | −5.3 | −49.4 | −31.1 | 4 |
|
|
