Improving reservoir characterization and time-lapse seismic through joint inversion of PP-and PS-wave seismic data

A Tura, J Simmons, S Daneshvar… - …, 2022‏ - pubs.geoscienceworld.org
Using synthetic and field data examples, we find that joint prestack amplitude variation with
angle (AVA) inversion of PP-and PS-wave data can significantly improve estimation of P …

Joint PP-PS seismic prestack inversion of thin-bed reservoirs

C Yang, Y Wang - Journal of Geophysics and Engineering, 2022‏ - academic.oup.com
Thin beds are significant targets in seismic exploration of lithological reservoirs. The
conventional Amplitude Versus Offset/Angle (AVO/AVA) inversion methods are based on …

Ensemble-based electrical resistivity tomography with data and model space compression

M Aleardi, A Vinciguerra, A Hojat - Pure and Applied Geophysics, 2021‏ - Springer
Inversion of electrical resistivity tomography (ERT) data is an ill-posed problem that is
usually solved through deterministic gradient-based methods. These methods guarantee a …

Stochastic inversion of time‐lapse electrical resistivity tomography data by means of an adaptive ensemble‐based approach

A Vinciguerra, M Aleardi, LM Madsen… - Geophysical …, 2023‏ - earthdoc.org
Inversion of time‐lapse electrical resistivity tomography is an extension of the conventional
electrical resistivity tomography inversion that aims to reconstruct resistivity variations in …

Ensemble scenario‐based inversion: A new approach for estimating the uncertainty of resistivity models derived from 3D controlled source electromagnetic data

E Causse - Geophysical Prospecting, 2023‏ - earthdoc.org
Non‐linear inversion of controlled source electromagnetic data is non‐unique. Inversion
ambiguity and uncertainty grow with model complexity and limitations in sensitivity, for …

A nonlinear inversion method for Young's modulus and shear modulus based on the exact Zoeppritz equations

Y Cheng, S Song, D Li - Frontiers in Earth Science, 2024‏ - frontiersin.org
Introduction Young's modulus and shear modulus are essential mechanical parameters for
evaluating subsurface rocks, playing a pivotal role in the exploration and development of …

Impact of joint PP/PS inversion on shear-impedance estimation for exploration and production

A Tura, J Simmons, M Copley, S Daneshvar… - … Exposition and Annual …, 2021‏ - onepetro.org
Joint pre-stack inversion of PP-and PS-wave data is shown to significantly improve
estimation of in particular S-impedance but also P-impedance and density. For reservoir …

Decoupling of changes in pressure-saturation and porosity fields from time-lapse seismic data using an ensemble based method for a compacting chalk reservoir

T Bhakta, E Tolstukhin, C Pacheco, X Luo… - … Exposition and Annual …, 2020‏ - onepetro.org
In this work, we investigate the applicability of an ensemble based petrophysical parameter
inversion framework to decouple changes in porosity field from dynamic …

[PDF][PDF] AVO Inversion using Data Assimilation

T Jonge - 2019‏ - bora.uib.no
In this work, two main numerical modeling methods are used to create synthetic seismic data
in an elastic, isotropic medium. These methods are the Born approximation and AVO …