ABSTRACT
This chapter reviews the application of fiber Bragg gratings for oil and gas sensing technology. Fiber optic sensor technology has revolutionized the monitoring of wells and reservoirs in the oil and gas industry. This development is due to the passive nature of fiber optic sensors, its ability for cost-effective installations, and the possibility of measurements along fiber length. The information obtained through fiber optic sensors installed in oil and gas wells effectively contributes to improved efficiency, safety, and final recovery. Fiber optic sensors have huge potential to provide distributed sensors for acoustic pressure in green environments for seismic observation. The current trend in the industry is taking advantage of the surface imaging capabilities of seismic monitoring, not only for oil and gas exploration but also to monitor the estimated life of the depletion of the reservoirs. The temperature sensor can be used with fiber optic cables as a thermal detector to detect sudden rise in temperature or fire in tunnels.
