Geophysical Monitoring of a Hydrocarbon Reservoir

Hydrocarbon extraction from unconventional reservoirs demands ever-increasing technological effort, for better understanding phenomena occurring within the reservoir.We review currently available geophysical techniques for reservoir monitoring. First, we describe basic characteristics of geophysical monitoring, identifying properties and their associated monitored quantities, according to the different fields of analysis in reservoir. Second, we present an overview of current monitoring techniques associating them to monitored quantities.Monitoring is extremely important in understanding how the reservoir reacts to external or internal perturbation of its state; secondly, monitoring is one of the first steps in preventing and addressing key environmental issues