DISTRIBUTED FIBER-OPTIC SENSING
Distributed Fiber Optics (DFO) technology makes it possible to continuously monitor the entire wellbore continuously over extended periods of time. Unlike logging tools that can survey only a limited interval of the well at one specific time, DFO captures data several times per second, providing a complete wellbore profile. As a result, dynamic events moving along the wellbore can be tracked, which provides a better insight into the wellbore dynamics and added confidence to well integrity decisions. For example, a gas leak migrating upwards can be followed and its speed measured, and intermittent events that would otherwise escape detection by traditional point measurement logging tools can be observed and diagnosed.