... Comparing the conventional prestack AVO inversion based on least square strategy, the prestack basic pursuit inversion can obtain the blocky elastic parameters which suit to reduce the ambiguity in interpretation. But the traditional prestack basic pursuit inversion doesn’t obtain stable S-wave...

... integrating well log data, analysis between elastic parameters and rock types and PSDM seismic data in order to perform a simultaneous seismic inversion, getting the spatial distribution of the impedances related to sand lithology in Palagua field, Colombia. The volumes of elastic parameters indicates areas...

... inversion comparison solver inversion elastic parameter Inversion comparison using an elastic local solver to recover elastic parameters Ligia Elena Jaimes-Osorio and Alison Malcolm Department of Earth Science, Memorial University of Newfoundland SUMMARY alterations to solve time-lapse seismic...

..., the solution of an inversion problem is predict the current trace s elastic parameters. However, the practical inversion application system is complicated and represented by a posterior distribution. Under the nonlinear. The system errors and noise covariance are also not accurately obtained. The Adaptive...

... salt diapir pressure data prospect exploration geophysicist 10 inversion elastic parameter structural geology biondi dataset full-waveform inversion application elastic property Target-oriented elastic full-waveform inversion: deep-water ocean-bottom-node eld-data application Ettore...

... for PS re ections. The method itera- ity, while the virtual source that models the amplitudes of PS tively updates the perturbations of elastic parameters by min- re ections is a function of the perturbations of Lame´ parame- imizing the L2 norm of the difference between recorded and ter µ and density...

... We combine two inversion techniques to achieve an accurate wave-equation-based elastic-parameter estimation workflow using pressure data. We first apply full-waveform inversion by model extension (FWIME), a robust model-building technique, which provides an accurate migration velocity so...

... Estimating the elastic parameters accurately is the key to improve the objectivity and accuracy of the reservoir property identification. The prestack inversion based on the elastic wave theory is an important method to estimate the elastic parameters. In this work, we present a non-linear AVO...

... Bayesian theory is widely used in various seismic inversion methods. At present, most seismic inversion aims to obtain the elastic parameters of the formation (such as wave impedance, lame constant, etc.), and then obtains the extent and lithofacies of the target geological body through manual...

... in the analysis of the correlation between reserves efficiently, horizontal well is widely used in this elastic parameters and effective reservoir which determine area. The characteristics of tight sandstone gas reservoir the location and parameters of fracturing reconstruction. determine that fracturing...

... the this abstract. Firstly, we apply a random forest algorithm to validity of the proposed method. predict reservoir parameters from elastic parameters. Secondly, fuzzy logic algorithm is adopted to integrate Random forest algorithm (RFA) reservoir parameters to craft reservoir description. Numerical experiment...

... probability geophysics inversion elastic parameter ile formation bayesian avo inversion ile fm Time-lapse Bayesian AVO inversion applied to the Heidrun Field in the Norwegian Sea Heidi Kjønsberg*, Norwegian Computing Center; Sissel Grude Haug, Equinor; Ragnar Hauge, Norwegian Computing Center; Carl...

... of symmetry. Most of the conventional processing techniques use only the kinematic characteristics of the wavefield, whereas sufficient information about the anisotropic parameters is contained in the amplitudes of the signal. All the elastic parameters (formation density, compressional and shear wave...

... Location: Poster Station 5 Presentation Type: Poster organic-matter content prediction coefficient elastic parameter machine learning support vector regression s-wave velocity interpretation reservoir characterization seg international exposition uranium omc random forest algorithm...

... data to estimate lithology and elastic parameters through data assimilation. Solving jointly for lithology and elastic parameters relaxes the dependency on the prior low-frequency models and has the potential to reduce project turnaround time. Herein, we demonstrate joint PP-PS LE AVA inversion...

...: Wednesday, September 18, 2019 Session Start Time: 1:50 PM Presentation Start Time: 1:50 PM Location: Poster Station 11 Presentation Type: Poster migration efficiency time migration reverse time migration calculation coefficient ray upstream oil & gas elastic parameter anisotropy...

... to rock properties, which can speed up the inversion process. Finally, we use a synthetic seismic test to verify our method. The outputs are the elastic parameters (P- and S-wave velocities, density) and Thomsen parameters ( and ). The inversion results indicate that our new method is more accurate than...

... for reservoir characterization. Rock physics analysis guided pre-stack studies are therefore necessary for further hydrocarbon exploration within this block. However, study shows that it's difficult to distinguish sand from shale effectively using conventional elastic parameters. In this paper, we have...

... ABSTRACT The different processing steps used to create the targetoriented data for the local elastic parameters inversion introduces algorithm-related amplitude bias and artifacts, especially in the low S/N ratio data, and thus can lead to the variability in the inverted elastic parameters...

... ABSTRACT We can obtain elastic parameters through prestack amplitude versus offset (AVO) inversion, which is used to characterize the reservoir, so it is significant to obtain high precision elastic parameters in order to get highly reliable reservoir prediction result. In this paper, we...