METHOD FOR PREDICTING QUANTITATIVE VALUES OF A ROCK OR FLUID PROPERTY IN A RESERVOIR USING SEISMIC DATA

摘要

A method is provided for predicting a value of a designated rock or fluidproperty in a subterranean geologic volume. A first predicted value of thedesignated rock or fluid property is also assigned to a volume of a multi-dimensional, multi-scale model. A first predicted value of seismic responsefor the model volume is calculated from a response model using the firstpredicted value of the designated rock or fluid property, wherein the responsemodel is responsive to changes in predicted values of the designated rock orfluid property. A synthetic trace is generated and iteratively compared to thecorresponding trace obtained from one or more sets of actual seismic data todetermine a difference while consistency is maintained between the types,scales and dimensions of values and data. The first predicted value of thedesignated rock or fluid property is adjusted in response to the difference tocreate a second predicted value of the designated rock or fluid property,wherein the second predicted value generally reduces the difference.