Tracer testing is a mature technology used for characterizing aquatic flow systems. To gain
more insights from tracer tests a combination of conservative (non-reactive) tracers together …

The 160-year history of oil and gas drilling in the United States has left a legacy of
unplugged orphaned and abandoned wells, some of which are leaking methane and other …

With the growth of deep learning in various classification problems, many researchers have
used deep learning methods in environmental sound classification tasks. This paper …

The upward migration of methane from natural gas wells associated with fracking operations
may lead to contamination of groundwater resources and surface leakage. Numerical …

Hydraulic fracturing of horizontal wells is an essential technology for the exploitation of
unconventional resources, but led to environmental concerns. Fracturing fluid upward …

As a primary sink of pollutants, urban soil heavy metal pollution and its influence on urban
residents and ecosystems has been becoming one of the most important environmental …

Hydraulic fracturing operations are performed to enhance well performance and to achieve
economic success from improved production rates and the ultimate reserve recovery. To …

CO 2 leakage risk is a critical threat to a safe and long-term storage of CO 2 in the
underground space. However, there is a lack of effective risk assessment methods for CO 2 …

Methane leaking at depth from hydrocarbon wells poses an environmental and safety
hazard. However, determining the occurrence and magnitude of gas migration at ground …

Hydraulic fracturing in shale/tight gas reservoirs creates fracture network systems that can
intersect pre-existing subsurface flow pathways, eg fractures, faults or abandoned wells …