Web1. n. [Geophysics] The difference in the arrival times or traveltimes of a reflected wave measured by receivers at two different offset locations. Normal moveout (NMO) is … Web21 de jan. de 2024 · Normal moveout (NMO) correction Figure 6 (a) A gather of processed traces with a common surface location. Shot-to-receiver offset is zero at the center of the gather and increases to about 2000 m deep on either end. The offset related curvature of the reflections is due to normal moveout.
Residual moveout analysis - SEG Wiki
Web1 de fev. de 2024 · "A geophysicist, who practices seismic data processing, inversion, and interpretation, would want to have a quick reference under his/her fingertips for the theory and practice of all processing methods and algorithms, for determining an optimum processing sequence with optimum parameters for each step --- whether it is for AVO … Web8 de mai. de 2024 · Open any textbook about seismic data processing and you will inevitably find a section about the normal moveout (NMO) correction. There you'll see that we can correct the measured traveltime of a reflected wave t at a given offset x to obtain the traveltime at normal incidence by applying the following equation: in which is the NMO … the polar star jazz orchestra
A theory of normal moveout GEOPHYSICS - SEG Digital Library
WebNormal moveout (NMO) velocity is a commonly used tool in the seismic industry nowadays. In 3D surveys, the variation of the NMO velocity in a horizontal plane is elliptic in shape for the anisotropy or heterogeneity of any strength (apart from a few exotic cases). Web13 de jun. de 2024 · Normal moveout (NMO) ... GEOPHYSICS, VOL. 82, NO. 5 (SEPTEMBER-OCTOBER 2024); P. V335 ... the circular wavefront definition 8, despite … WebNormal moveout (NMO) correction is routinely applied to traces of each common-midpoint (CMP) gather before forming a stack section. Conventional NMO correction has the drawback of producing stretching as a natural result of convergence of the NMO trajectories. sidiary meaning