Fiber Optic Technology for Reservoir Surveillance

Fiber-optic sensing technology for in-well applications has traditionally focused on temperature profiling. This has limited the application of fiber-optic reservoir surveillance to recovery processes with a pronounced thermal signature. Currently, novel fiber-optic technologies entering the market promise a much wider range of subsurface measurements. This opens new avenues in well and reservoir management and highlights the opportunity for fiber-optics to become a pervasive oilfield technology. In this paper we discuss field trials that combine Distributed Temperature Sensing (DTS), Distributed Strain Sensing (DSS) and Distributed Acoustic Sensing (DAS). These trials demonstrate the potential of fiber-optic sensing technology for well integrity monitoring, gas lift optimization, in-flow profiling and downhole seismic acquisition.