| 摘要 |
<p>A work station computer system (54) and its associated method and program storage device (58) stores a novel software package known as 'Variance Cube'. The computer system is responsive to a plurality of seismic signals (42) propagating through a cubic volume of an earth formation (44) for generating a cube, representing the cubic volume of earth, where the cube includes a plurality of seismic data samples (42) and each seismic data sample has a corresponding variance value (60) assigned thereto. The computer system also generates time slice map (60) representing one or more slices through the cube, each map including a plurality of variance values representing geologic features, and each variance value defined as the degree to which an amplitude of each seismic data sample in the cube at a particular reflection time varies about an average amplitude.</p> |
