Fast anisotropic viscoelastic modeling and application in quantitative seismic reservoir characterization

Sirui Tan, Sunwoong Lee, John E Anderson, Haiyang Wang, Olivier Burtz, Partha Routh, Rongrong Lu, Yang Yu

International Meeting for Applied Geoscience and Energy (IMAGE)

...(Moczo and Kristek, 2005) for a given quality factor matrix 𝑸. The multiplicative inverse of the quality factor is implicitly defined in th...

Deep Dix: Enhancing interval velocity model estimation through adversarial regularization

Joseph Stitt, Robert Clapp, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... Advancements in geophysical inverse problem-solving are crucial for extracting reliable information and quantifying uncertainties. Traditional...

Nonlinear time difference detection of seismic image based on image registration

Rongwei Xu, Huazhong Wang, Bo Feng, Chengliang Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... Inversion (FWI) has emerged as a core methodology for seismic wave inversion imaging. FWI is characterized as a typical, highly nonlinear inverse problem...

Abstract: Development of Inverse Grading in Grain Flows, by A. H. Sallenger, Jr.; #90968 (1977).

Search and Discovery.com

Abstract: Inverse Problem Theory: An Application to Stratigraphic Inversion

Emmanuelle Becker

Geological Society of Malaysia (GSM)

...Abstract: Inverse Problem Theory: An Application to Stratigraphic Inversion Emmanuelle Becker 208 INVERSE PROBLEM THEORY: AN APPLICATION...

Viscoacoustic wave propagation: Spectral-element simulations with a novel GSLS-type wave equation

Yu Chen, Bin He, Hejun Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... modeling. In order to describe the Q effect more accurately and conveniently, in this study, we derive a new wave equation for spectral element modelling...

Improving Depth Prediction Accuracy of Quantified Drilling Hazards

W. Scott Leaney, William H. Borland

Geological Society of Malaysia (GSM)

... with under compacted shales. Absence of under compacted shales does not necessarily mean an absence of over pressuring. INVERSION There can be no inverse...

Geothermal Parameters in the Powder River Basin, Wyoming

Richard W. Davis

Wyoming Geological Association

...: (4) t e q = [ 0.006 / ( 0.0028186 d a + 7.36240 ] Where: da = Any desired depth (m) teq =Time to equilibrium or formation temperature...

Perforation Efficiency Quantification Utilizing Raw Stimulation Data for Hydraulically Fractured Unconventional Wells

Abdulrahman Alowaid, Tayyar Altayyar

Unconventional Resources Technology Conference (URTEC)

...) Where: Q 𝜌 D perforation Cd = Pumping rate (bpm) = Fluid Density (ppg) = Perforation Diameter (inch) = Coefficient of Discharge The novelty...

First-arrival traveltime and slope tomography in tilted anisotropic media with undulant topography

Xiaole Zhou, Serge Sambolian, Gaoshan Guo, Stephane Operto, Haiqiang Lan, Ling Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... with a finite-difference (FD) factored eikonal solver on curvilinear grid using a 2D surface-flattening scheme. Moreover, a matrix-free inverse problem...

Factors Controlling Heavy-mineral Variations on the South Texas Outer Continental Shelf, Gulf of Mexico

Romeo M. Flores, Gerald L. Shideler

Journal of Sedimentary Research (SEPM)

... by provenance and local variability reflecting genetic differences in sea-floor sediments. Q-mode factor analysis showed that three suites of heavy...

An experimental evaluation of the curvature-strain relation in fault-related folds

David P. Keating, Mark P. Fischer

AAPG Bulletin

...-related strain predictions will be strongly dependent on the dip and throw of the underlying basement fault. Allmendinger, R. W., 1998, Inverse...

Generalization Capability of Data-driven Deep Learning Models for Seismic Full-waveform Inversion: An Example Using the OpenFWI Dataset

Ayrat Abdullin, Umair Bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... model, and ill-posedness of the inverse problem. There is a lack of Data-driven approaches have witnessed development for FWI, including multilayer...

Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport

James McLeman, Tim Burgess, Tom Rayment, Victor Chua

International Meeting for Applied Geoscience and Energy (IMAGE)

...., 2021), which use estimates of the inverse Hessian operator. The L2 norm is computed sample by sample and hence is not well suited to measure time...

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... and the inverse Gabor transform gives the extrapolated wavefield at the new depth. Since each spatial window requires a separate Fourier transform...

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... and the inverse Gabor transform gives the extrapolated wavefield at the new depth. Since each spatial window requires a separate Fourier transform...

An efficient L-BFGS-based approach to estimate the uncertainty of full-waveform inversions

Yongbo Zhai, Xin Cheng, Robert Bloor, Denes Vigh, Zhen Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... is used to derive the optimal solution, and the inverse Hessian matrix is approximated as the solution approaches the maximum a posterior (MAP) model...

3D deblending for marine towed-streamer data

Yangkang Chen, Min Zhou, Ray Abma

International Meeting for Applied Geoscience and Energy (IMAGE)

..., there have existed many different approaches, but these methods can be mainly divided into two categories: filtering-based approach (Huo et al., 2012...

Abstract: Full-Waveform Inversion of Field Data in the Foothills: Results and Challenges with Long-Offset Seismic; #90172 (2014)

Andrew J. Brenders, R. Gerhard Pratt, Sylvestre Charles

Search and Discovery.com

... to the non-linearity of the inverse problem, success in waveform inversion is dependent on acquiring both low-frequency data and on initial low...

3-D Surface-Wave Estimation and Separation Using an Iterative Closed-Loop Approach; #41898 (2016)

Tomohide Ishiyama, Gerrit Blacquiere

Search and Discovery.com

..., the approach solves the inverse problem. We applied this method to several data sets to demonstrate its virtues, such as real 3D geophone/hydrophone...

Wettability, Oil and Rock Characterization of the Most Important Unconventional Liquid Reservoirs in the United States and the Impact on Oil Recovery

J. O. Alvarez, D. S. Schechter

Unconventional Resources Technology Conference (URTEC)

...forces are related by the inverse Bond number (Du Prey 1978; Schechter et al. 1994) as shown in Eq. 3. Where C is a constant related to pore geometry, σ ...

A New Approach to Measure Organic Density

Son T. Dang

Unconventional Resources Technology Conference (URTEC)

... and mineral true grain density, and potentially measured k – as inverse weight fraction of organic carbon to organic matters. Kvalue seems to be a good...

High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration

Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen

AAPG Bulletin

... this issue, Tarantola (1984b) estimated subsurface reflectivity by solving a linear inverse problem, which is known as least-squares migration (LSM...

Abstract: Different Flavors of the Marchenko-Equation-Based Internal Multiple Elimination Methods: the Trade-off between Fidelity, Computational Cost and Ease of Use; #91204 (2023)

Marcin Dukalski, Chris Reinicke

Search and Discovery.com

... which can impact the interpretation. In such cases, the conventional methods such as the inverse scattering series (ISS) or the Jakubowicz method...

Fast viscoacoustic forward modeling method based on U-net Fourier neural operator

Wenbin Tian, Yang Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... of fractional Laplace operators associated with the quality factor Q. The computation of numerous Fourier transforms remains a significant challenge...