According to the data analysis results and the actual situation of the pipeline, hundreds of pipeline anomalies are usually found. However, it is not clear at a glance which anomalies need to be repaired and how soon it’s needed. Therefore, it is necessary to select appropriate anomalies for dig verification.

As a part of the pipeline integrity evaluation, Shenglong will implement a multi-step dig verification procedure to make the verification results consistent with the data analysis. This will enable the owner to fully trust the professionalism of Shenglong, facilitate the owner to master the information of pipelines and maintain the safety of pipelines.

Dig verification program includes：
• Positioning of verification dig points
• Remove the coating
• Measurement of dig points
• Verification dig report
• After the dig verification, the dig point shall be repaired and back filled immediately