Monitoring production-related changes to reservoir over time is one of the key aspects to optimum field production. Pressure and temperature data acquisition regularly over period of a field's lifetime is the basis of good reservoir management.

In regards to that, we also provide a set of monitoring services using fiber optic applications, such as Distributed Temperature Sensing (DTS) and Distributed

Accoustinc Sensor (DAS) Upstream oil and gas application of Distributed Accoustic Sensor are as following:

• FLow and Production Monitoring
• Well Integrity Assurance
• Cement Monitoring
• Leak Detection
• Sand Detection
• Fracture Monitoring