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Keywords: impedance
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3409173
... concluded with an integration of the various models to reduce uncertainty in prediction of PRG zones. We were able to use seismic analysis to successfully improve our prediction of PRG compared to using only conventional seismic attributes (full stack seismic, fluid impedance). Presentation Date: Monday...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427201
... The common practice to extract a wavelet for seismic quantitative interpretation (e.g., impedance inversion) requires well information. In our study, we proposed to use bi-directional deconvolution to estimate the wavelet directly from seismic data in such a way that well information...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424516
... upstream oil & gas equivalence full wavefield reflectivity modeling vector reflectivity equation impedance reflection exploration geophysicist 10 horizontal component Seismic modeling with vector reflectivity N. D. Whitmore*, J. Ramos-Martinez, Y. Yang, A. A. Valenciano Petroleum Geo...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427931
... inversion technique was employed to obtain the impedance and compute the porosity of the fractures. Here to simplify the computation, the porosity was used to measure the fracture connectivity. After that, an intelligent connectivity path analysis method was introduced to find out the optimal connectivity...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427957
..., and avoiding the commonly employed, ad-hoc methods that throw away otherwise valuable “near-field” data that are unusable in MT-only modeling workflows. Note: This paper was accepted into the Technical Program but was not presented at the 2020 SEG Annual Meeting. impedance geophysics reservoir...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427710
... Presentation Time: 3:55 PM Location: 360D Presentation Type: Oral production monitoring seismic data reflection production control impedance mesopotamian basin reservoir characterization upstream oil & gas shoal reservoir surveillance shoal reservoir production data seg international...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426208
... Presentation Time: 11:00 AM Location: 362D Presentation Type: Oral drilling operation gas reservoir hydraulic fracturing impedance directional drilling reconstruction scheme characteristic optimization seg international exposition inversion poisson horizontal well seismic technology...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3417800
... data example confirmed the feasibility and effectiveness of MSWC inversion. Presentation Date: Wednesday, October 14, 2020 Session Start Time: 9:20 AM Presentation Time: 9:20 AM Location: Poster Station 12 Presentation Type: Poster upstream oil & gas impedance frequency band seg...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3209778
... an alternative attribute based on Poisson dampening factor to reduce ambiguity. In this paper, we extend the Poisson dampening factor (PDF) by adjusting the c parameter in Poisson impedance and propose the general Poisson dampening factor (GPDF). With numerical modelling the effectiveness of GPDF attribute...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215834
... inversion which provides the tools to discriminate lithology and predict porosity. The inversion results indicate that distinct porosity and permeability regimes within the Upper Cretaceous strata of the SGE. The impedance and porosity relationships show well founded and reliable correlations...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216649
... ratio and high brittleness index. The higher organic richness of the kerogen layer correlates with lower acoustic impedance. Seismic analysis depicts that multiple fracture sets exist in the area. The brittleness index is calculated from pre-stack simultaneous inversion results and is used to identify...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3192118
... basin reservoir characterization orthorhombic medium avaz inversion porosity upstream oil & gas seg international exposition impedance machine learning Bachrach , R. , 2014 , Linearized orthorhombic AVAZ inversion: Theoretical and practical consideration : 84th Annual...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3204859
... Time: 3:55 PM Location: 217A Presentation Type: Oral inversion geostatistical inversion facies estimation bayesian inference impedance entropy probability facies probability schouten cgg upstream oil & gas reservoir characterization entropy qc annual meeting confidence index...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3209801
... established an independent equation based on the reflectivity coefficients approximated equation in terms of P- and S-wave impedance and density. In this way, the density was decoupled from P- and S-wave impedance, and density may be accurately estimated. A real data was utilized to validate the feasibility...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3211226
... international exposition case study acoustic impedance elastic impedance chi angle annual meeting impedance seismic inversion shale water saturation discrimination Moubarak , H. , T. Al-Rashid , and Z. Ren , 2018a , Seismic facies classification and rock typing to better...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214591
... ABSTRACT One of the primary fluid indicators for direct hydrocarbon detection using seismic amplitude anomalies is the difference between saturated-rock P-wave impedance and the rock-frame impedance. This can be expressed in terms of the difference between the observed P-wave impedance...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3196883
... ABSTRACT Poisson impedance (PI) has been widely used for characterizing sandstone reservoirs due to its larger sensitivity to the lithology and fluid, compared to the impedance. By adjusting the coefficient (c), we always found a good correlation between the PI and reservoir properties...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3192321
... ABSTRACT A rock physics study is an important tool for the reservoir’s characterization. In this paper, we created a rock physics template for the anisotropic sand-shale interval as a function of porosity, impedance as variable parameters. These templates are basically cross-plots of acoustic...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215435
... at Mount Elbert test well, North Slope of Alaska. Presentation Date: Wednesday, September 18, 2019 Session Start Time: 8:30 AM Presentation Start Time: 11:25 AM Location: 305 Presentation Type: Oral clay content impedance porosity hydrate saturation gas hydrate upstream oil & gas...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215536
... with large scattering angles. Given the velocity model, the density can be obtained by updating the impedance information also using an angle based inversion strategy. Numerical examples show that the proposed inversion strategy is an effective way for simultaneous velocity and density estimation...

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