... workflow upstream oil & gas inversion reservoir characterization american association grid avo inversion close-the-loop workflow international woodside energy exploration geophysicist physic inversion society geologist reservoir simulation reservoir geomechanics saturation subsurface...

... Compared to isotropic media, AVO inversion based on VTI media enables the acquisition of high-precision elastic parameters. Traditional inversion methods typically rely on low-frequency elastic parameters, while intelligent inversion methods often necessitate a vast number of training samples...

... Broadband seismic data are rich in high and low frequency components, which play an important role in improving the resolution of reservoir description. Using broadband seismic data, we propose a broadband probabilistic AVO inversion in complex frequency domain to estimate reservoir properties...

... and high-resolution results. geology inversion geologist deep learning reservoir characterization geological subdiscipline upstream oil & gas neural network machine learning exploration geophysicist international applied geoscience noise geophysics avo inversion synthetic dataset...

... Seismic data acquired at different times can provide insight into changes in an oil/gas reservoir. We apply time-lapse AVO inversion methodology to the Edvard Grieg field in the North Sea. The methodology we use inverts for discrete lithology-fluid classes (LFCs), where different fluid fillings...

... upstream oil & gas avo inversion exploration geophysicist elastic wavefield seismic model web-avo inversion american association inversion seismic avo inversion linear avo inversion haffinger energy 10 elastic fwi international next-generation subsurface exploration reservoir...

... In this paper we present a synthetic example and a real data example of AVO inversion in long time windows. Two aspects of long time windows will be high-lighted: the growing non-linearity of the data model with increasing object size, and the fact that over long time windows single wavelets...

...Lateral constraint with Adaptive Incremental Kalman filter in Bayesian linear AVO inversion Peng Li*, Jing Tang, Xuri Huang, Yungui Xu, Yezheng Hu, WeiPing Cao School of Geosciences and Technology, Southwest Petroleum University Summary Theory and Method Considering the lateral continuity...

... to improved well placement and design, helps identify geohazards and is used to help monitor production effects. AVO inversion is now a commonly applied reservoir characterization technique that seeks to calculate the elastic properties of the subsurface from angle dependent seismic observations...

... geophysical definition and delineation of the subsurface targets by enforcing plausible multi-parameter petrophysical relationships and structural expectations. We demonstrate the effectiveness of our method in AVO inversion. Without loss of generality, this method can be applied to other characterization...

...Sensitivity and uncertainty of PP- and PS-Joint Zoeppritz AVO inversion: Eagle Ford case study Un Young Lim*, Chevron CTC (formerly Texas A&M University), Richard L. Gibson Jr., NanoSeis (formerly Texas A&M University), and Nurul Kabir, formerly Texas A&M University SUMMARY contrasts in properties...

...Petrophysical AVO inversion based on the Xu-White model with spatially-varying pore aspect ratio Qiang Guo*, Tao Shen, Yiqian Tian, College of Information Engineering, China Jiliang University Summary and such pore type variation can be described by the pore aspect ratio (the minor to major axes...

... geology in situ stress rate of penetration exploration geophysicist 10 reservoir geomechanics upstream oil & gas prestack seismic data base wolfcamp drilling operation bone spring shale inversion unconventional reservoir compressive strength avo inversion p-impedance rd bone spring...

...Seismic AVO Statistical Inversion Incorporating Poroelasticity Kun Li* and Xingyao Yin, China University of Petroleum (East China) Summary and density with rock matrix, fluid modulus, and porosity respectively and developed a Bayesian AVO inversion Seismic AVO inversion is an important approach...

... inversion method using the improved artificial bee colony algorithm based on exact Zoeppritz equations. In this method, the artificial bee colony algorithm is improved by learning from the particle swarm optimization algorithm and the genetic algorithm, and the objective function for the AVO inversion...

... and/or geomechanical changes due to production. AVO inversion is subset of seismic reservoir characterization whereby variations in seismic amplitude with offset are inverted for elastic properties. Rock physics provides the connection between these elastic properties and petrophysical parameters including porosity...

... We examine the sensitivity of the PP- and PS-Joint Zoeppritz AVO inversion to the target parameters such as P-wave and Swave velocities (VP and VS), and density (r). For comparison, we also investigate the sensitivity to different types of AVO inputs, separately testing PP- and PS-reflection...

... clastic reservoirs, carbonate reservoirs are commonly expected to be less sensitive to AVO inversion parameters due to a stiffer rock frame, lower matrix porosity as well as effects in the seismic created by the large elastic contrast between clastic and carbonate strata. Gisolf et al. (2017) presented...

...-dependent AVO inversion and high and there is no far offset seismic data. density gradient inversion are carried out using amplitude seismic data. The p-wave dispersion gradient and density Theory: gradient are obtained respectively. The p-wave dispersion gradient is the derivative of velocity change rate...

... Location: 361A Presentation Type: Oral reservoir characterization seismic data prestack lsrtm lsrtm psf sog migration upstream oil & gas illumination geological complexity inversion seg international exposition reflectivity amplitude avo inversion structural geology imaging...