| 摘要 |
A method for analyzing seismic intervals (12, 14) and predicting subsurface petrophysical properties (170) through the use of a new set of attributes known as Linear Shape Attributes (LSAs) (16, 18, 20). The Linear Shapes (16, 18, 20) form an orthogonal basis set derived directly from the seismic data traces (10a-10g) for the interval in question. Collectively, the LSAs (16, 18, 20) capture substantially all of the useful information contained in the input data set. The input data set may include all or a selected portion of the seismic data traces for the prospect. Petrophysical information obtained from well logs and/or pseudowell logs may be used to calibrate the LSAs (16, 18, 20).
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