Seismic Reservoir Modeling

<p>Seismic reservoir characterization&nbsp;aims&nbsp;to build 3-dimensional models of rock and fluid properties, including elastic and petrophysical&nbsp;variables, to describe and&nbsp;monitor the state of the subsurface&nbsp;for hydrocarbon&nbsp;exploration and&nbsp;production and&nbsp;for&nbsp;CO₂ sequestration. Rock physics modeling and seismic wave propagation theory provide a set of physical equations to predict the seismic response of subsurface rocks based on their elastic and petrophysical properties. However, the rock and fluid properties are generally unknown and surface geophysical measurements are&nbsp;often&nbsp;the only available data to constrain reservoir models far away from well control. Therefore,&nbsp;reservoir&nbsp;properties are generally estimated from geophysical data as a solution of an inverse problem, by combining rock physics and seismic models with inverse theory and geostatistical methods, in the context of the geological&nbsp;modeling&nbsp;of the subsurface. A probabilistic approach to the inverse problem provides the probability distribution of rock and fluid properties given the measured geophysical data and allows quantifying the uncertainty of the predicted results. The reservoir characterization problem includes both discrete properties, such as facies or rock types, and continuous properties, such as porosity, mineral volumes, fluid saturations, seismic velocities and density.&nbsp;&nbsp;</p> <p><i>Seismic Reservoir Modeling:&nbsp;</i><i>Theory, Examples and Algorithms</i>&nbsp;presents&nbsp;the main concepts and methods of seismic reservoir characterization. The book presents an overview of&nbsp;rock physics models that link the petrophysical properties to the elastic properties in porous rocks&nbsp;and a review of the&nbsp;most common geostatistical methods to interpolate and simulate multiple realizations of subsurface properties&nbsp;conditioned&nbsp;on a limited number of direct and indirect measurements&nbsp;based on&nbsp;spatial correlation models.&nbsp;The&nbsp;core of the book&nbsp;focuses on&nbsp;Bayesian inverse methods for the prediction of&nbsp;elastic&nbsp;petrophysical properties from seismic data using analytical and numerical statistical methods.&nbsp;The authors present&nbsp;basic and advanced&nbsp;methodologies of the current state of the art in seismic reservoir characterization&nbsp;and illustrate them&nbsp;through expository examples as well as real data applications to hydrocarbon reservoirs and CO₂&nbsp;sequestration studies.&nbsp;&nbsp;</p>