Processing seismic data representative of the acceleration wavefield
First Claim
1. A method, comprising:
- acquiring, or retrieving from storage, one or more acceleration wavefield traces;
applying a gain recover to the acceleration wavefield traces;
applying a normal moveout correction to the gain recovered acceleration wavefield traces;
muting the normal moveout corrected acceleration wavefield traces;
stacking the muted acceleration wavefield traces; and
applying, using a processor, a time migration to the stacked acceleration wavefield traces.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of processing seismic data comprises processing data representative of the acceleration wavefield so as to obtain information about the earth'"'"'s subsurface direct from the seismic data representative of the acceleration wavefield. In conventional techniques for processing seismic data representative of the acceleration wavefield the data are transformed to the velocity domain at an early stage in the processing. The invention enables the transform step to be eliminated, thereby simplifying the processing and eliminating the risk that the transform might degrade the data. Furthermore, the increased sensitivity at high frequencies of a typical acceleration sensor compensates for the low-pass filter effect of the earth.
-
Citations
16 Claims
-
1. A method, comprising:
-
acquiring, or retrieving from storage, one or more acceleration wavefield traces; applying a gain recover to the acceleration wavefield traces; applying a normal moveout correction to the gain recovered acceleration wavefield traces; muting the normal moveout corrected acceleration wavefield traces; stacking the muted acceleration wavefield traces; and applying, using a processor, a time migration to the stacked acceleration wavefield traces. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
-
-
2. An apparatus, comprising:
-
an input interface for receiving one or more acceleration wavefield traces; a data processor; and memory comprising program instructions executable by the processor to; acquire the acceleration wavefield traces; apply a gain recover to the acceleration wavefield traces; apply a normal moveout correction to the gain recovered acceleration wavefield traces; mute the normal moveout corrected acceleration wavefield traces; stack the muted acceleration wavefield traces; and apply a time migration to the stacked acceleration wavefield traces. - View Dependent Claims (3, 4, 5, 6, 7)
-
-
16. A method, comprising:
-
acquiring, or retrieving from storage, seismic data representative of only acceleration wavefield traces; applying a gain recover to the seismic data; applying a normal moveout correction to the gain recovered seismic data; muting the normal moveout corrected seismic data; stacking the muted seismic data; and applying, using a processor, a time migration to the stacked seismic data.
-
Specification