Method of seismic time migration using a massively parallel comp

Details Method of seismic time migration using a massively parallel comp Method of seismic time migration using a massively parallel comp

1991-12-20

1994-09-20

Envall, Jr., Roy N.

Boots, shoes, and leggings

367 45, 367 46, G01V 100

Patent

active

053495276

ABSTRACT:
A method for 3 dimensional, one pass migration of post stack seismic data is implemented on a massively parallel computer. The quality of the migration and speed of execution makes possible iterative 3D post stack depth migrations. The depth migration method computes in the frequency domain and downward continues one or more frequency planes through all depth levels of interest. For a single frequency, at each depth level, the method extrapolates a shifted position for each x,y position by applying a filter for 2D convolution. A processing component is assigned to each subgrid of x,y spatial positions and the processing components operate concurrently in parallel to determine filter coefficients independently for each x,y spatial position and to extrapolate the x,y shifted positions. The filter coefficients are derived independently at each x,y position by storing a limited table of filter coefficients in local memory of each processing component.

REFERENCES:
patent: H482 (1988-06-01), Berryhill et al.
patent: 4598400 (1986-07-01), Hillis
patent: 4773038 (1988-09-01), Hillis et al.
patent: 4827403 (1989-05-01), Steele, Jr. et al.
patent: 5128899 (1992-07-01), Boyd et al.
patent: 5148406 (1992-09-01), Brink et al.
patent: 5150331 (1992-09-01), Harris et al.
Blacquiere, Debeye, Wapenaar & Berkhout, 3D Table-Driven Migration, 37 Geophysical Prospecting 925 (1989).
Hale, 3-D Depth Migration via McClellan Transformations, 56 Geophysics 1778 (1991).

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