In the oil extraction process, automation instruments are primarily used to measure parameters such as pressure, temperature, gas pressure, and flow rate, which are crucial for accurate operation. These instruments provide precise data for the oil extraction process. If the automated system malfunctions for unknown reasons, manual control devices should be used first. The corresponding parameters should be adjusted according to the operational process to restore normal operation. Next, the cause of the system failure should be investigated, with careful inspection of each detail to ensure everything is correct before proceeding to the next step of troubleshooting.

Complee has served several major projects, including China National Offshore Oil Corporation, Yangzi Petrochemical, Sinopec, Lanzhou Petrochemical, and Victory Oil Field. The instrumentation automation system mainly includes measurement systems, signal systems, interlock protection systems, and control systems. All of these systems are integrated through a decentralized control system and network transmission technology, enabling effective remote monitoring at the oil field production site. This setup allows timely delivery of production commands and provides effective guidance for safe operation throughout the oil field.

Complee has established cooperative R&D and sales relationships with companies from Germany, the USA, and other countries. Complee's products are leading both domestically and internationally. Complee's panel meters conform to IEC60051, IEC61010, and digital parameter meters comply with GB/T22264-2008. The current transformers meet the standards of IEC61869 and GB20840. The KLY series, which is exported to Germany, is made according to DIN43700 and DIN61010. The encoder products have passed the full performance test at the Shanghai Institute of Electricity.