With the exploration and development of unconventional oil and gas resources, downhole
environmental monitoring and data-analysis technologies are becoming more and more …

We briefly review the history of distributed acoustic sensing (DAS) as applied to geophysical
problems over the past 20 years, including a bibliography of about 900+ DAS‐related …

Perforation shots excite guided waves that propagate in a low-velocity unconventional shale
reservoir. They have a frequency content of up to 700 Hz and are dispersive. We have …

The effective monitoring of hydraulic fracturing in unconventional oil and gas production
requires tools to quantify elastic property variations even in the absence of microseismic …

Among CCUS methods, carbon dioxide-enhanced coalbed methane (CO2-ECBM) is one of
the most important applications. The CO 2 migration range in the reservoir and impact on the …

Distributed acoustic sensing (DAS) technology offers full-well seismic sensor coverage for
vertical seismic profiling (VSP) applications. A rapid time-lapse DAS VSP provides the …

We show distributed acoustic sensing records of guided waves excited by perforation shorts
in a low-velocity shale layer. Thanks to the high spatial and temporal resolution of distributed …

Fiber-optic distributed acoustic sensing (DAS) offers advantages in time-lapse VSP seismic
monitoring of an unconventional reservoir. Petrophysical changes to the reservoir due to …

Numerical modeling of a North American hydraulic fracture experiment is done to
demonstrate the accuracy with which the volume containing proppant could be estimated …

Several recent studies have advanced the use of time-lapse distributed acoustic sensing
vertical seismic profile data in horizontal wells for determining hydraulically stimulated …