... Refracted seismic waves from a long offset survey can be used for travel time tomography, providing further information of deep-water oil and gas reservoirs. In this work, we apply first arrival tomography on real data – recorded from a target-oriented circular acquisition geometry of 6, 8...

.... By utilizing the ray path and travel time of the single frequency surface wave component, a tomographic inversion equation can be established to obtain a nearsurface S-wave velocity model. This inversion process involves three issues, ray path, travel time, and initial model. For the scale of oil and gas...

... (Tsvankin et al., 2010). It is an important indicator for oil reservoir, carbon sequestration plume movement, and geothermal system operation. Seismic anisotropy represents the dependency of seismic velocity on direction or angle. It affects wave phase travel times and amplitude versus offset, therefore...

... an automatic first arrival picking method using global path tracing to find a global solution for first arrival picking with the condition of smoothness on the traced path. The proposed methodology is composed of data preconditioning, global path tracing, and final addition to compute the total travel time. We...

... and dynamic ray tracing to obtain travel time, trajectory and dynamic information. Then we use dynamically focused beam of anisotropic media to calculate the Green’s function and the Claerbout’s imaging condition to obtain images. This strategy enables us to enhance the amplitude and improve the imaging...

... of the location uncertainties of the in the lower panel of Fig. 1. surface array, DAS array, and their combination. We show that the data can be consistently combined to resolve the circular Ray tracing is used to forward model travel times through the ambiguity of the DAS array and improve the depth resolution...

... depth interval vsp data reservoir characterization depth range seg international exposition wireline system equation slowness data wireline data inversion das data vertical seismic profile moveout analysis exploration geophysicist 10 travel time das walkaway vsp analysis summary...

... inversion microseismic data travel time linear inversion perforation shot inversion upstream oil & gas microseismic event exploration geophysicist 10 shear-wave splitting vendor event location sv-wave arrival velocity model seg international exposition constraining anisotropic velocity...

... automatically a number of parameters from encouraging results such to suggest further development raw gathers such as velocity from travel times and residual work in 1.5 FWI applications within a surface-consistent statics (Colombo et al., 2016b), as well as amplitude framework. compensation and deconvolution...

... of the microseismic event using peak amplitudes and traveltimes of P and S waves as input features. To examine the factors affecting the results of moment tensor inversion using ML model, we analyze the sensitivity of three factors, the error in the peak amplitude due to noise, the error in travel time due to picking...

... the near surface azimuthal anisotropy affect larger the shift value is, and the shift directions on both sides P-wave travel time and amplitude of deep target, it has a of the shot point are different; 3) Different near surface great influence on first arrival traveltime. The near surface velocity models...

... migration technology separates migration imaging and static correction issues, which destroys the actual propagation path of the wavefield and causes errors when calculating travel time. In recent years, BGP has formed a depth-domain imaging technology scheme based on a velocity modeling technical...

... Time: 1:50 PM Presentation Start Time: 3:05 PM Location: 217B Presentation Type: Oral constraint grid ray path pre-stack depth migration information western china upstream oil & gas reservoir characterization travel time geological horizon velocity model annual meeting...

... velocity model anisotropy parameter slowness borehole seismic data schlumberger upstream oil & gas annual meeting receiver reservoir characterization travel time seg international exposition velocity model inversion tomography integrational anisotropic earth-model building imaging...

... where travel time-offset functions are evaluated to automatically derive velocity-depth profiles. The process is entirely data driven and does not require a starting model. The methodology is demonstrated on three complex 3D marine datasets where it provides imaging results comparable to extensive...

... parameter slowness vertical velocity local anisotropy estimation vertical seismic profile machine learning feasibility das vsp annual meeting horizontal slowness travel time slowness component Gaiser , J. E. , 1990 , Transversely isotropic phase velocity analysis from slowness...

... travel time velocity change fracture annual meeting fracture zone Avseth , P. , T. Mukerji , and G. Mavko , 2005 , Quantitative seismic interpretation: Applying rock physics tools to reduce interpretation risk : Cambridge University Press . Bohlen , T...

... & gas well logging gaussian beam migration fracture reservoir characterization borehole wave seg international exposition amplitude wellbore geophysics receiver travel time Bleistein , N. , and S. H. Gray , 2010 , Amplitude calculations for 3D Gaussian beam migration...

... the travel time inversion. We introduce TRI into the noise source locating and propose an isotime point imaging method for source identification. We take an imaging point as a source, calculate the travel time field around, pick several points on one or more isotime lines (we call them isotime points...

... velocity joint inversion reservoir characterization joint inversion layered linear inversion travel time seg international exposition velocity model upstream oil & gas travel time residual synthetic test event location inversion anisotropic velocity model arrival time Grechka...