The oil and gas industry is continually striving to produce more hydrocarbons and reduce waste. Many sensing
techniques using optical fiber have been developed over the last three decades for all stages of well development. This
paper reviews these optical sensing technologies, with emphasis on new applications and business drivers. Expected
performance parameters of these new technologies are discussed, including their accuracy, resolution, stability, and
operational lifetime. Environmental conditions, such as high temperatures, shock, vibration, crush, and chemical
exposure, are also discussed. These optical technologies are expected to provide safe, reliable, cost-effective, and
unprecedented monitoring solutions.