... a complex signal into a limited number of Intrinsic Mode Function (IMF), which is stationary, narrow-band and contains the local characteristics information of the original signal. Therefore, applying Hilbert transform to IMF can obtain high accuracy and clear physical significance instantaneous frequency...

... characteristics of diffraction wave in post stack seismic data, this paper puts forward a set of technological process of extracting residual diffraction wave information based on principal component analysis. The residual diffracted wave attribute is used to describe the plane distribution of fractured reservoir...

... this problem, we analyzed the characteristics and mechanism of seismic response under such complex geological conditions through forward modeling, established the relationship between waveform information of seismic response characteristics of different strata, the corresponding phase information...

... information inversion upstream oil & gas applied geoscience configuration modeling inversion result interpolation modeling paleogene reservoir inversion method reservoir prediction reservoir characterization resolution prediction exploration geophysicist 10 reservoir frequency model...

.... Note: This paper was accepted into the Technical Program but was not presented at IMAGE 2021 in Denver, Colorado. artificial intelligence applied geoscience information machine learning maximum likelihood fault detection boundary exploration geophysicist 10 upstream oil & gas...

... interpretation. Note: This paper was accepted into the Technical Program but was not presented at IMAGE 2021 in Denver, Colorado. migration artifact polarization direction geophysics conventional kirchhoff migration geophone upstream oil & gas information migration profile seismic record...

... picked from the stacked seismic data and corrected by well information interpolated over the interpreted geological horizons, meanwhile, accessing the travel time and amplitude information of seismic wave, the nonlinear prestack elastic-waveform inversion of isotropic elastic medium based on the global...

... The development and application of a novel low cost geoelectrical monitoring system is described. The system comprises measurement instrumentation designed for long-term deployment at field sites, telemetric control, automated data processing and modelling, and information delivery. System...

... promoting prior information are utilized at each stage to distinguish signal from blending noise in the transform domain. We discuss common geophysical challenges related to acquisition environments such as land, towed-streamer, ocean bottom node (OBN) and how the proposed approach can be shaped to address...

... Inferring geologically meaningful information from a geophysical inversion is a challenging task. Moreover, prior knowledge about the petrophysical contrasts or the relationships between various geological units can also prove difficult to translate into quantitative input for the inversion...

... Geophysical inversion problems have inherent ambiguity that requires regularization terms in the objective function to add prior information and constraints to reduce non-uniqueness. The types of regularization term introduced are different for different applications, but some regularization...

... seismic data palagua field lithology discrimination reservoir characterization information workflow elastic parameter Depth domain simultaneous seismic inversion for lithology discrimination in Palagua Field, Colombia. Jhonny Calderón* and Mario Pachón, Ecopetrol Summary KPSDM) data...

.../wavenumber information in the measured data and the starting models. In order to address these issues, we apply the approach of angle difference identity with cosine to the GPR data. This method considers a mathematical relation between high- and low-frequency data. Thus, we can improve the starting models...

... interpolation dominant dip iteration regularization artificial intelligence applied geoscience sparse geophysics interpolate stride sacchi naghizadeh key seismic solution ltd upstream oil & gas information receiver exploration geophysicist 10 artefact Sparse thresholding...

.... This is a key dataset for understanding the primary structure of the deep crust across thousands of kilometres. Direct “inversion” of this dataset to a consistent 3D fault surfaces network explains more than 50% of the primary information. The same objective applies for Algeria as well. The method of choice...

... sampled two user-specified parameters in multiple times and generated a large set of density models that span a wide spectrum of the possible model characteristics. Based on prior density information from drillholes or lab measurements, we have developed an acceptance-rejection strategy to determine which...

... information mineral deposit bell geospace mapping mineral system upstream oil & gas mineral system geophysics right scale province Mapping mineral systems under cover: the right geophysics at the right scale in the right order Graham Banks*, Route To Reserves and Southern Geoscience Consultants...

... consistent information to reduce the inversion nonlinearity and crosstalk between the parameters. The geologic constraints are obtained from well logs and interpolated along major horizons in the migrated image. The algorithm, designed for elastic transversely isotropic media with a tilted symmetry axis (TTI...

... the joint recovery model, we exploit information shared between multiple time-lapse surveys. Contrary to other time-lapse methods, our approach does not rely on replicating the surveys to detect time-lapse changes. To illustrate this advantage, we present a numerical sensitivity study where CO 2...

... High frequency (above 1 Hz) urban ambient noise, mainly generated by motor vehicles, may contain both Rayleigh and Love waves. Due to their different physics, a prior knowledge of wave type information of surface waves in the extracted crosscorrelogram is essential to an accurate inversion...