| 摘要 |
A technique is provided for controlling the quality of processed seismic data without requiring subjective intervention. Seismic data, for instance acquired by land or marine techniques, are supplied as input (1) and a portion for testing is selected (2). First and second combinations (or more) of seismic data processing steps are selected (3 and 6). The selected data portion is processed (4 and 7) using these combinations and the thus processed portions are analyzed to calculate attributes thereof e.g., signal-to-noise ratio, resolution etc., (5 and 8). These measures are compared (9) and the combination of processing steps giving the better attributes is then used to process the input seismic data (10 or 11). In another embodiment, a single processing step is performed on a test portion of data, and parameters of the processing step are adjusted in response to the measured attributes of the processed data (e.g. adjustment of the level of noise attenuation performed in an attenuation step). When the attributes indicate that the data obtained from the first processing step is satisfactory, the cycle is repeated for further processing steps (Fig. 2, not shown). |
