seismic-method magazines & Journals
3 magazines found
This paper presents a simple method for seismic ray tracing in a general anisotropic medium, which may include complex structures and compound materials, such as water, isotropic and anisotropic rocks, fine-layers and parallel small cracked blocks. The anisotropy may be defined by up to 21 density-normalized elastic moduli which vary with spatial position. The ...
Crosshole seismic tomography often is applied to image the velocity structure of an interwell medium. ...
This paper presents a modern version of an old technique of common tangent reflection migration. Rather than using the graphical method of swinging arcs and looking for the envelope of touching tangents on widely separated geophones, we use a numerical scheme of searching along each isochron, constructed by a wave‐equation‐based modeling scheme for arbitrary velocity media, to find the common ...