Cases

For the full-length pipelines of Guangdong Dapeng LNG Company Limited, there are 4 sections with AC voltage exceeding the standard and 2 sections with off-potential failing to meet the specification requirements. After on-site verification, construction for AC and DC stray current remediation was immediately carried out, and two additional anode wells were constructed.

Inspection Plan for Cathodic Protection Current Leakage of Valve Chambers, Guiyang Oil & Gas Transmission Branch
Our company completed the cathodic protection current leakage inspection for 31 valve chambers covering 4 main pipelines from March 19, 2025 to March 31, 2025.

Guangdong Dapeng LNG Co., Ltd. shall carry out construction for DC interference mitigation on the Meishi Branch Pipeline and AC drainage mitigation in Huizhou, Guangzhou and Shenzhen to reduce pipeline corrosion risks.

In accordance with the conclusions and recommendations specified in the Inspection and Evaluation Report for Buried Natural Gas Pipelines of Guangzhou Zhujiang Natural Gas Power Generation Co., Ltd., anti-corrosion repair works utilizing the cathodic protection scheme shall be implemented on the buried gas (LNG) pipelines of Guangzhou Zhujiang Power Plant.