| 摘要 |
<p>A model seismic image of a subsurface seismic reflector (216) is constructed, wherein a set of source and receiver pairs is located (202), and a subsurface velocity function (204) is determined. Specular reflection points (206) are determined on the subsurface seismic reflector for each of the source and receiver pairs. A Fresnel zone (208) is determined on the subsurface seismic reflector for each of the specular reflection points using the subsurface velocity function. One or more seismic wavelets are selected (210) and a set of image points is defined containing the subsurface seismic reflector (212). A synthetic seismic amplitude is determined for each of the image points by summing (214) the Fresnel zone synthetic seismic amplitude for all of the Fresnel zones that contain the image point using the seismic wavelets. The model seismic image of the subsurface seismic reflector is constructed (216) using the synthetic seismic amplitudes at the image points.</p> |
