Interpretation of first-arrival times of borehole acoustic measurements acquired in high-angle wells using 3D eikonal numerical simulations

Feiyue Xia, Carlos Torres-Verdín

International Meeting for Applied Geoscience and Energy (IMAGE)

... and that the wave traveltime is only affected by velocity variations on the traveling path (Červený, 2001). Wang et al. (2017) applies a simplified raytracing...

Optimized transparent boundary conditions for wave propagation

G. Roncoroni, B. Arntsen, E. Forte, M. Pipan

International Meeting for Applied Geoscience and Energy (IMAGE)

... analysis, earthquake forecasting, and wave propagation modeling. A notable study by Choi et al. (2023) introduced an unsupervised Legendre–Galerkin...

Petrophysical Analysis and Seismic Response of Chert in the Thirtyone Formation, West Texas

Dongjun Fu, Charlotte Sullivan, Kurt Marfurt, Amit Sondhi, Peter Wang

West Texas Geological Society

... a higher-velocity relatively homogeneous limestone in the background. Since seismic amplitudes always change with offset (Koefoed, 1955), an analysis...

VSP Survey in the Thonex Geothermal Well … New Characterization of Potential Carbonatic Geothermal Reservoirs, #80646 (2018).

Luca Guglielmetti, Andrea Moscariello, Flavio Poletto,, Piero Corubolo,, A. Scheifer,, B. Farina, Fabio Meneghini, Francois Martin, Carole Nawratil de Bono,, Michel Meyer, Chrystel Dezayes, Adnand Bitri

Search and Discovery.com

.... • Velocity analysis on VSP data from near and offset VSPs • Wavefield separation • FK filter design and application for upgoing wavefield...

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

.... 13181337.Plona, T. J., and M. R. Kane, 2005, Anisotropic stress analysis from downhole acoustic logs in the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate...

Abstract: Deghost + Denoise + Demultiple + Velocity & Q Inversion + Depropagate = Seismic Imaging (Geophysics Paper 17)

Mehmet Ferruh Akalin

Geological Society of Malaysia (GSM)

... and advanced implementations of deghosting, denoise, demultiple and anisotropic velocity inversion and Q-attenuation-factor determination techniques...

Squeezing Every Last Drop Out of a Coarse 3D Oil Sands Dataset for Refining 3D Survey Design … A Case History; #41500 (2014)

Sylvestre Charles, Jim Hostetler, Jiwu Lin, Xiaoming Luo

Search and Discovery.com

... tomographic velocity analysis in tilted transversely isotropic media: A 3D case history from the Canadian Foothills: Geophysics, v. 73/5, p. VE261-VE268. De...

Numerical Simulation of the Impact of Coal Anisotropy on CO2 Sequestration in Deep Mannville Coal Seams

Yun Yang, Christopher R. Clarkson, Hamidreza Hamdi, Amin Ghanizadeh, Michael S. Blinderman, Curtis Evans

Unconventional Resources Technology Conference (URTEC)

... analysis, and compare the simulation results for the isotropic permeability and anisotropic permeability model. The calibrated numerical simulation...

Numerical experiments on 3D frequency domain multiparameter full-waveform inversion in viscoelastic media in parallel environments

Guoqi Ma, Bing Zhou, Jamal Zemerly, Mohamed Kamel Riahi

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion of five key parameters—density, p-wave velocity, s-wave velocity, and associated quality factors—thus providing a preliminary validation...

Impact Of Anisotropy Induced By Shale Lamination And Natural Fractures On Drilling, Completion, and Fracturing Design

Ming Gu

Unconventional Resources Technology Conference (URTEC)

...) Schoenberg, M., Muir, F., and Sayers, C., 1996, Introducing ANNIE: A Simple Three-Parameter Anisotropic Velocity Model for Shales, Journal of Seismic...

Optimization of the Proppant Placement Through the Perforations in Multistage Hydraulic Fracturing: A Laboratory-scale Experimental Investigation

Nadia Mouedden, Aimen Laalam, Harry Feilen

Unconventional Resources Technology Conference (URTEC)

... and placement of proppant through the perforations. To begin with, the settling velocity of proppant was a major concern in this work, where various published...

High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP

Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... ft [2 m] sensor spacing. Data analysis and processing The DAS 3D-VSP data were passed through a DAS optimized processing workflow to enhance signal...

Seismic imaging in Tarim Basin: Overcoming complex near-surface conditions

Xianhuai Zhu, Ruirui Zhao, Sam Gray, Wensheng Duan, Duoming Zheng, Ganglin Lei, Gengxin Peng, Rujie Zhang, Kun Xu, Grace Yan, Junru Jiao

International Meeting for Applied Geoscience and Energy (IMAGE)

... has significantly improved the robustness of estimating near-surface velocity-depth models, resulting in enhanced resolution of deep reservoir images...

Integrated Analysis of Acoustic Images and Shear Wave Anisotropy Used for Geomechanical Modelling in a Tight Sand Oil Reservoir

Saikat Das, Viet Hoang Nguyen, Sadegh Asadi, Naveen Nathesan, Ahsan Jamil, Hilarion Milan, Ashvin Avalani Chandrakant, Fairuz Azwardy Salleh

Unconventional Resources Technology Conference (URTEC)

... stress direction, however this data needs to be applied with cautious and it is only reliable for stress azimuth analysis of anisotropic formations...

Geomechanical Insights in the Bedout Sub-Basin: Exploiting Technologies for Understanding Reservoir Settings

David A. Castillo, David Kuek, Melissa Thompson, Fred Fernandes, Jon Minken, Toby Colson

Australian Petroleum Production & Exploration Association (APPEA) Journal

..., tensile cracks, anisotropic breakouts, and drilling-enhanced natural fractures were collectively used to constrain the Bedout Basin stress regime...

Fine-Grained Versus Coarse-Grained Wave Ripples Generated Experimentally Under Large-Scale Oscillatory Flow

Don I. Cummings, Simone Dumas, Robert W. Dalrymple

Journal of Sedimentary Research (SEPM)

... of bed forms generated by large waves—namely sediment grain size (D50), oscillatory velocity (Uo), and orbital diameter (d0) (Fig. 1)—have not been...

Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data

Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen

GCAGS Journal

...Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen...

Upscaling acoustic wave equation using renormalization group theory

Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix

International Meeting for Applied Geoscience and Energy (IMAGE)

.... In other words, a fine-scale layered isotropic medium is well described by an effective coarse-scale anisotropic medium (e.g., Backus, 1962). However...

Application of Simultaneous Inversion and Geomechanical Facies in the Characterization of an Unconventional Play, #41940 (2016).

S.A. Cuervo, H. Malcotti

Search and Discovery.com

... Deconvolution Velocity Analysis/Static Corrections Noise attenuation Interpolation Pre-Stack Time Migration (Kirchhoff) RNMO Synthetic AVO calibration...

Re-imaging of 2D legacy data in Brazils Equatorial Margin via pseudo-3D model building

David Butler, Daryineth Fernandez, Oscar Perez, Raul Ysaccis, Jason Thekkekara, Juan Perdomo, Christopher McMorland, Aurora Rodriguez Castelan

International Meeting for Applied Geoscience and Energy (IMAGE)

...ty analysis profiles done on the 2D lines that capture the heterogeneity velocity represented in the profiles, followed by appropriate interpolati...

VSP Survey in the Thonex Geothermal Well - New Characterization of Potential Carbonatic Geothermal Reservoirs

Search and Discovery.com

Seismic Challenges in the East-Med: Edison’s Experience and Lessons Learned

Search and Discovery.com

Integrated PSDM Transect Modelling and Imaging across PNG

Search and Discovery.com

ABSTRACT: Offshore Alaska: Prospect Maturation Techniques in Challenging Arctic Environments; #90125 (2011)

Jaeger, Guenter, Homza, Thomas X., Rosenbladt, Robert L., Prusak, Deanne, Hurst, Clive, Buerkert, Thomas P.

Search and Discovery.com

..., however, revealed that the subsurface velocity field was not so “benign”: The presence of Upper Cretaceous submarine slides as well as velocity anisotropy...

Abstract: Extract More Information from the Full Seismic Wavefield in the Local Angle Domain; #90286 (2017)

Christophe Rimlinger

Search and Discovery.com

... to incorporate optimal velocity and structural information for anisotropic tomographic updates as well as full azimuth reflectivities for fracture...