... geophysicist geologist china government international azimuthal anisotropy receiver polarity geology orientation applied geoscience american association energy 10 alford asia government separation expanded abstract summation s-wave vibrator SV/SH or S1/S2 separation for 3D6C data...

... azimuth anisotropy tsvankin effectiveness geologist asia government migration fracture geology reservoir characterization application perpendicular upstream oil & gas flatness fracture imaging orthotropic migration geophysics china government azimuthal anisotropy imaging...

... 9C, the azimuthal anisotropy is weak and increases slightly with depth. Figure 3: Lupin PSDM stacks of P-, PS-, and S-waves highlighted in orange, red and green, respectively. Comparing all 3D depth-imaging for P, S, and PS-images facilitated interpretation, and sharing all elastic velocities...

... upstream oil & gas azimuthal anisotropy application acquisition azimuth partition international applied geoscience reservoir characterization bin american association fracture detection extract azimuth information exploration geophysicist fractured reservoir At present...

... anisotropy caused by local and regional features. The anisotropy results corroborate drilling-induced tensile fractures and borehole breakouts on image logs. international applied geoscience interpolation azimuthal anisotropy upstream oil & gas exploration geophysicist orientation ovintiv...

... tlfwi azimuthal anisotropy velocity model psdm image obc imaging The gas and oil-bearing fractured basement rocks in Bohai Bay, offshore China, form important and complicated hydrocarbon reservoirs. It has proved a challenging area for seismic imaging due to the presence of substantial...

... wave seg international exposition time difference hydraulic fracturing r-receiver splitting analysis time reference azimuthal anisotropy wave splitting analysis ss wave splitting analysis exploration geophysicist 10 configuration upstream oil & gas fracture layer reflection...

... Not only does the near surface azimuthal anisotropy affect P-wave travel time and amplitude of deep target, it has a great influence on first arrival traveltime. The near surface model building and static correction methods based on isotropy assumption can’t solve this problem effectively...

... The Columbus Basin offshore Trinidad has been a challenging area for seismic imaging due to the presence of substantial velocity heterogeneity and strong azimuthal anisotropy resulting from abundant gas clouds and complex fault structures. A tilted orthorhombic (TOR) model is required to address...

... ABSTRACT Post-migrated image gathers in the presence of unresolved azimuthal anisotropy and residual velocity error exhibit complicated moveout. However, it is possible to measure the move- out and invert/update model properties such as velocity and anisotropy. Azimuthal anisotropy can...

... , Interpreting seismic data in the presence of azimuthal anisotropy : The Leading Edge , 21 , 771 – 774 , 10.1190/1.150319 . reservoir characterization colorado school reflector simmons upstream oil & gas variation annual meeting seismic vvaz azimuth vvaz interpretation...

... Center) Presentation Type: Oral annual meeting shadow effect reflector variation azimuthal anisotropy initial orthorhombic model seg international exposition model building orthorhombic model velocity model orthorhombic full-waveform inversion upstream oil & gas velocity variation...

... Wave Splitting (SWS) induced by azimuthal anisotropy, facilitate fracture characterization, leading to an improved understanding of the reservoir. This paper applies the method presented by Boiero and Bagaini (2016, 2017) by utilizing their new approach to invert for interval values of SWS intensity...

...: ORAL seg seg international exposition seismic trace machine learning anisotropic parameter intensity azimuthal angle arrival time orientation seismic data upstream oil & gas azimuthal anisotropy variation supergather size anisotropy azimuthal anisotropic seismic processing...

... motion (APM), and are inconsistent with the strike of major tectonic features. This inconsistency, together with the results of depth estimation using the spatial coherency of the splitting parameters, suggests a mostly asthenospheric origin of the observed azimuthal anisotropy. The observations can...

... placement. To improve seismic imaging, the first 3D/4C OBC acquisition over the field was carried out. This provides better illumination, better elimination of multiples and a broader spectrum with a better signal to noise ratio. However, the presence of strong azimuthal anisotropy poses a serious challenge...

... fracture azimuthal anisotropy upstream oil & gas finite-difference modeling comparison elastic modeling equivalent modeling modeling & simulation annual meeting reservoir characterization seg seg international exposition schoenberg fractured hti model modeling hti model...

...: Exhibit Hall C/D Presentation Type: POSTER upstream oil & gas orthotropic media media radial fracture annual international meeting compensation shear-wave splitting analysis transverse component seg seg international exposition orientation correction hti media azimuthal anisotropy...

..., located in Denver Basin of northeastern Colorado, USA, to characterize the subsurface formations for azimuthal anisotropy. The waveform inversion used a multi-objective method based on the non-dominated sorting genetic algorithm as the optimization tool, and P- and S-wave velocities and density from...

... definition (porosity, permeability and well production). The accuracy of this analysis depends on the quality of the dataset used with respect to both the velocity model and the type of migration algorithm. In this case study we show how apparently strong azimuthal anisotropy observed on a time migrated...