How to Find Oil Robbing Clamp in Buried Oil Pipeline

Through comparison and analysis on oil anti-robbing method and combining the structure and features of oil robbing clamps, the feasibility to examine and find it with instrument is put forward. Take the actual examination and inspection to oil pipeline as an example, the efficiency to use the instrument is proofed. 7 analysis methods and application principle of inspection instrument to judge oil robbing clamp and damage point of external coating of oil pipeline are introduced in the paper.