... primary reflection geophysics migration information upstream oil & gas incident angle adcig artifact image condition annual international meeting reflector reservoir characterization reflection point image time mcmechan horizontal reflector contribution image point...

... to pick the horizontal reflectors prior to migration of the prism waves. It also separately images the vertical structures at a different step to reduce crosstalk interference. The disadvantage of prism wave migration algorithm is that its computational cost is twice that of conventional RTM...

... information reflection information state variable upstream oil & gas sava geophysics velocity analysis gradient reflector waveform tomography incorrect velocity objective function horizontal reflector Image-domain waveform tomography with two-way wave-equation Tongning Yang and Paul Sava...

...) that describes the migrated position of a horizontal reflector below a constant-velocity overburden with medium velocity vm as a function of vertical time , half- offset h, and migration velocity v. It reads in our notation = 20 +h2(1/v2m 1/v2) , (1) where 0 is vertical time at zero offset, i.e...

... phenomenon horizontal reflector Wave-equation extended images for semblance and depth focusing velocity analysis Tongning Yang and Paul Sava, Center for Wave Phenomena, Colorado School of Mines SUMMARY Conventional velocity analysis applied to images produced by wave-equation migration makes use either...

... equation migration horizontal reflector interface limitation depth section reflector ray path upstream oil & gas migration Limitations of the exploding reflector model in sub-salt imaging Oren Peles*, Paradigm, Allon Bartana, Paradigm, Dan Kosloff, Dept. of Geophysics, Tel Aviv University...

..., and the surface defined by the double-square-root equation. upstream oil & gas wavelength cmp gather reservoir characterization reflection energy double-square-root equation reflector csp gather avo analysis hyperbolic surface horizontal reflector intersection prestack migration aperture...

... migration. specular dip isochron horizontal tangency upstream oil & gas angle gather angle domain kirchhoff integral contribution reservoir characterization integration illumination dip angle depth point migration point diffractor impulse response horizontal reflector imprint...

... the Fresnel zone size must be considered. This paper derives the size of the prestack Fresnel zone as a function of half source-receiver offset. It evaluates how the size of the migration aperture affects the migration result, then establishes an acceptable minimum migration aperture for horizontal reflectors...

... migration vsp-cdp mapping mapping lazarato diffractor upstream oil & gas horizontal reflector migrated image two-step migration migration diffraction reservoir characterization migration approach Two-step migration approach for crosswell seismic reflection data Joongmoo Byun*, Allied...

... ABSTRACT No preview is available for this paper. receiver acquisition reservoir characterization minimal data traveltime survey design frequency reflector horizontal reflector apparent velocity parallel geometry pswave asymmetry resolution geometry orthogonal geometry...

... ABSTRACT No preview is available for this paper. isotropic media horizontal reflector nmo ellipse ellipse moveout equation reservoir characterization tsvankin inversion tti media tilt reflector parameter estimation azimuth transversely isotropic media media symmetry axis...

... ABSTRACT No preview is available for this paper. post-stack migration reflection data diffraction crosswell seismic data migration middepth gather post-map migration reservoir characterization lazarato diffractor velocity model migrated section midpoint horizontal reflector...

... ABSTRACT No preview is available for this paper. transverse isotropy media upstream oil & gas reflector tsvankin symmetry plane normal-moveout velocity plane reservoir characterization nmo velocity alkhalifah ellipse orientation azimuth vti media horizontal reflector...

... ABSTRACT No preview is available for this paper. reflector tsvankin equation upstream oil & gas thomsen ray parameter nmo velocity anisotropy reservoir characterization alkhalifah horizontal reflector geophysics anisotropy processing information inhomogeneous media...

... ABSTRACT No preview is available for this paper. geophysics hale moveout velocity reflection alkhalifah anisotropy reservoir characterization dmo equation transversely isotropic media horizontal reflector transverse isotropy upstream oil & gas algorithm anisotropic...

... ABSTRACT No preview is available for this paper. transversely isotropic media depth-focusing analysis horizontal reflector geophysics colorado school velocity variation reflector reflection isotropic media prestack migration migration error migration media anisotropy...

... ABSTRACT No preview is available for this paper. dip-dependent divergence correction divergence correction correction reflection point horizontal reflector amplitude conventional divergence correction traveltime reservoir characterization reflector raypath francesca fazzari...

... upstream oil & gas mode-converted wave horizontal reflector Transformation to Zero Offset for Mode-Converted Waves by Fourier Transform Mohammed Alfaraj, Colorado School of Mines SUMMARY Approximate transformation to zero offset (TZO) for mode-convert,ed waves can be done in the frequency...

... near-surface condition reservoir characterization fdp reflector horizontal reflector Dip Moveout in Cases of Irregular Surfaces S. Rodriguez*, .l f? Diet, and D. Paturet, CGG, France SM7.7 SUMMARY Conventional DMO algorithms assume that recording surfaces can be considered as being horizontal...