Distributed acoustic sensing (DAS) technology is one of the most rapidly growing applications in geophysics. DAS provides cost-effective seismic data that are easily acquired for a large array of applications from seismic to completions to production surveillance. In contrast to traditional point sensors such as geophones, the fiber itself is used as both a sensor and a means of transmitting data to the surface.

For borehole applications, data can be measured along the whole length of the fiber or from the surface to the toe of the well any time during operations at low cost if the fiber is deployed...

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