.... Conventional Kirchhoff migration produces offset image gathers, but because the migration is based on ray tracing it fails to generate accurate images for velocity models produced by FWI that have large velocity contrasts. Smoothing high-resolution models to stabilize the ray tracing is one approach...

... upstream oil & gas migration international american association geologist china government psf exploration geophysicist asia government geophysics deconvolution geology reservoir characterization position depth psf deconvolution kirchhoff migration artifact partition...

... upstream oil & gas migration traveltime american association geologist reservoir characterization ray-kdm exploration geophysicist figure 3 imaging wave-kdm equation applied geoscience figure 4 amplitude expanded abstract society geology kirchhoff migration international...

... geophysicist geology reservoir characterization american association geologist china government anisotropic media applied geoscience ray kirchhoff migration wavefield anisotropic media ning qin energy 10 algorithm international operator Elastic wave reverse time migration with dynamic focused...

... exploration geophysicist hz fwi image upstream oil & gas reservoir characterization fwi image american association kirchhoff migration geology latest imaging advancement applied geoscience expanded abstract Latest imaging advancements in Suriname shallow waters Jing Yang*, Zhihua Sun, Zhihua...

... parameters can normally be generated by FWI within days of raw field data first becoming available. reservoir characterization reflection inversion reflectivity acoustic fwi reflector applied geoscience figure 3 figure 4 amplitude exploration geophysicist international kirchhoff migration...

... association energy 10 international applied geoscience variation brazilian equatorial margin exploration geophysicist exploratory frontier revisiting resolution society reservoir characterization tlfwi distortion platform kirchhoff migration Revisiting the Brazilian Equatorial Margin...

... algorithm and input data. In areas with high-contrast velocity details, ray tracing breaks down and Kirchhoff migration images deteriorate. Reverse Time Migration (RTM) overcomes the ray tracing limitations through wavefield extrapolation but still suffers from low illumination due to complex overburdens...

... stacks and gathers. Even though ray-based Kirchhoff migration can efficiently generate high-resolution migration stacks and gathers, the calculation of traveltimes becomes inaccurate and unstable near large velocity variations, sharp contrasts, and complex structures. Reversetime migration (RTM...

... reservoir characterization interpolation tlfwi imaging upstream oil & gas expanded abstract velocity model mexico marlin dorado field migration exploration geophysicist 10 kirchhoff migration shallow imaging kirchhoff image seg international exposition compensation high...

... depths. Wave-equation based surface-offset gathers can be generated, but they are usually seen to be too expensive to be used in common practice. Therefore, we still often rely on conventional ray-based Kirchhoff migration to output surface-offset gathers. Its main limitation is traveltime computation...

... distortion vibratory source kirchhoff migration receiver position simple theory We propose a new processing approach not only to correct but to exploit the effects of the motion of marine vibratory source deployed an offshore seismic survey. We decompose the survey data into plural sections...

... ABSTRACT The azimuth angle domain common image gathers (AzADCIGs) objectively indicate the velocity, anisotropy parameter anomaly, amplitude versus angle and azimuth (AVAz) and fractured information of the subsurface medium. The traditional Kirchhoff Migration usually outputs offset domain...

... arrival times and model-based arrival angles and compare the results with the salt shape in the model. Sediment proximity imaging tests of salt boundary with Kirchhoff migration using synthetic DAS data are encouraging. Both migration imaging results of the salt boundary and the salt entry points derived...

... seg international exposition imaging demigration migration workflow kirchhoff migration annual international meeting operator reservoir characterization migration image application upstream oil & gas attenuation illumination least-square migration compensation migration...

... and is computationally expensive. However, standard low-cost migration algorithms such as the Kirchhoff migration often result in smeared and low resolution seismic images. In this paper, we propose to use a special kind of recurrent neural network, Mean field Boltzmann machine to solve the problem of Kirchhoff...

... reflection section velocity analysis migration deconvolution migration workflow seg international exposition demigration reservoir characterization geophysics zero-offset section schuster gom data seismic data yilmaz kirchhoff migration velocity model zero-offset reflection...

... : First Break , 26 , 109 – 113 . Wang , B. , and K. Pann , 1996 , Kirchhoff migration of seismic data compressed by matching pursuit decomposition : 66th Annual International Meeting, SEG , Expanded Abstracts , 1642 – 1645 , 10.1190/1.1826441 . digital wavelet...

... surface long bone cortical bone bone soft tissue seg international exposition reflection kirchhoff migration imaging ultrasound imaging group velocity elastic anisotropy real time system bone cortex reservoir characterization refraction image reconstruction Berkhout...

... simplification hessian artifact mapping migration inversion annual meeting reservoir characterization seg international exposition linearized inversion modeling operator lsmig upstream oil & gas kirchhoff migration model space noise operator Claerbout , J. F. , 1971 , Toward...