Patent ID: 7113869
Filing Date: 2006-09-26
Classification: G01V

Abstract:
1. A method of identifying drilling prospects, the method comprising the steps of: selecting a seismic volume of interest; generating different seismic attribute cubes for the seismic volume of interest; defining fluid-lithology classes based on correlation between seismic attributes, which correspond to the different seismic attribute cubes, and well production or log data; cross-plotting samples of the fluid-lithology classes having different seismic attributes to determine a set of seismic attributes that best differentiate hydrocarbon-bearing regions from non-hydrocarbon-bearing regions; defining a new class that represents a low-risk hydrocarbon class based on hydrocarbon-bearing classes in a cross plot; generating a class cube providing a spatial distribution of the fluid-lithology classes that include the new class; and selecting a drilling target based on the spatial distribution of the new class that represents the low-risk hydrocarbon class.