Velocity model building from 3D surface seismic data at the Utah FORGE EGS site

Yun-Ha Jung, Nori Nakata, Sea-Eun Park, Ju-Won Oh

International Meeting for Applied Geoscience and Energy (IMAGE)

... with the slowness, s(x), and seismic velocity, v(x). We used a finite-difference method of following eikonal equation: T 2 = s ( x) = 1 2 (1) 2 v ( x) Nobel...

Optimized transparent boundary conditions for wave propagation

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

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 2004, The numerical modeling of 3-d elastic wave equation using a high-order, staggered-grid, finite difference scheme: Applied Geophysics, 1, no. 1, 38...

Effect of near offset seismic data in shallow subsurface modeling using full-waveform inversion

Md Iftekhar Alam, Salman Abbasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... on a finite-difference grid. In waveform inversion, it solves the visco-acoustic wave equation using the mixed-grid approach of Jo et al. (1996), which...

Gradient-regularized physics informed neural networks for acoustic wave simulation

Shobhit Mishra, Bharath Shekar

International Meeting for Applied Geoscience and Energy (IMAGE)

... solvers, primarily finite-difference and pseudospectral methods, that have been perfected over a long time (Igel, 2016; Fichtner, 2011). Both...

A Geomechanical Analysis of Shale Hydraulic Fracturing Containment

Amirhossein Kamali, Ahmad Ghassemi

Unconventional Resources Technology Conference (URTEC)

... DD for multiple bonded planes. The 3D DD method proposed in this study is coupled with a finite difference fluid flow model to simulate...

Stability of slope along steep road in Abha, Asir Region, Kingdom of Saudi Arabia

Saiful Islam, Rini Asnida Abdullah, Javed Mallick, Mohd Ahmed

Geological Society of Malaysia (GSM)

...d by making use of a three-dimensional finite difference codes. From the analysis it was observed that the maximum displacement computed in the slope in the ...

Application of Transport Equations to Groundwater Systems

John D. Bredehoeft , George F. Pinder

AAPG Special Volumes

...) in development of this aspect of the problem. Some care is necessary in solving the equations. For the flow equation, we use finite-difference techniques...

3D Inversion of Crosswell Electromagnetic Data Collected between Extremely Spaced Horizontal Wells, #41860 (2016).

Ping Zhang, Alberto Marsala, Stig Lyngra, Wael Abdallah, Mike Wilt

Search and Discovery.com

... constraint. Discussion Field data were interpreted with a 3D finite difference inversion code (Mackie and Rodi, 2008). The workflow consists of using...

Time-Lapse Imaging of Heavy Oil Reservoirs at Shallow and Deep Using Ultra-Stable Seismic Sources; #41994 (2017)

Junzo Kasahara

Search and Discovery.com

... the finite difference method (FDM). By using the synthesized waveforms before and after the changes in physical properties of the presumed reservoirs, we...

Investigation and Field Application of Ultra-High Density Fracturing Technology in Unconventional Reservoirs

Fanhui Zeng, Yu Zhang, Jianchun Guo, Su Diao, Wenxi Ren, Bintao Zheng

Unconventional Resources Technology Conference (URTEC)

... with conditional formula (19) and (20), can couple the unknown quantity by dividing dynamic grids and using implicit finite difference method. Induced...

A New Workflow for Improved Water Saturation Assessment in Organic-Rich Mudrocks Honoring Rock Fabric

Artur Posenato Garcia, Archana Jagadisan, Ameneh Rostami, Zoya Heidari

Unconventional Resources Technology Conference (URTEC)

... of Path Lines for Finite‐Difference Models. Ground Water 26(6), 743-750. Poupon, A., Loy, M.E. and Tixier, M.P. 1954. A Contribution to Electric Log...

AAPG Middle East Meetings

Search and Discovery.com

Synthetic time-lapse FWI analysis for designing cross well seismic survey during CO2 injection in a depleted oil field

Toru Taira, Takuji Mouri, Ayato Kato, Yusaku Konishi, Takashi Akai, Shotaro Nakayama

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The forward modeling is performed by finite-difference method with the same FWI code used in the inversion. Note that we consider DAS as hydrophone...

Development of a Novel Compositional Simulation Approach to Model Recovery from Volatile Oil Reservoirs

E. Syahrial, T. S. Daltaban

Indonesian Petroleum Association

... all the equations, applying mole constraint, and converting the resulting expressions into finite difference form namely: Water equation: Oil...

Extracting surface wave dispersion spectra directly from the high-speed train induced vibration

Shengpei Xia, Xinyue Pan, Xiaokai Wang, Wenchao Chen, Jingrui Luo, Haixia Zhao, Wenjing Yan

International Meeting for Applied Geoscience and Energy (IMAGE)

... m  n, f , t −  v m =1  n =1     M 2 Figure 2: the excitation process of a HST source at the bridge pier. We use a finite-difference method...

Identifying Underutilized Ground Water Resources in the Coastal Bend Region of Texas

Karen K. Dodson

GCAGS Transactions

..., 122 p. McDonald, M.G. and A.W. Harbaugh, 1988, A modular three-dimensional finite-difference ground-water flow model: U.S. Geological Survey Techniques...

3.4 Detached Sediments: 3.4.2 Decollement Tectonics (B-Subduction) and Active Margins: Structure of a Subduction Complex

K. T. Biddle and D. R. Seely

AAPG Special Volumes

... the nonmigrated profile so that it may be compared with the migrated version and our interpretations. In Figure 3, the data were migrated by a finite...

Predicting Depths of Gypsum Dehydration in Evaporitic Sedimentary Basins

E. Craig Jowett , Lawrence M. Cathles III , Bruce W. Davis

AAPG Bulletin

... fluid. Using a finite-difference heat-conduction program, we have determined the depths of transition for gypsum in evolving basins beneath commonly...

Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)

Robert J. Ferguson and Gary F. Margrave

Search and Discovery.com

..., 1978) or maximum energy rays (Nichols, 1996) for example, or any other subset of the multimode wavefield. This ability is similar to that of finite...

Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)

Robert J. Ferguson and Gary F. Margrave

Search and Discovery.com

..., 1978) or maximum energy rays (Nichols, 1996) for example, or any other subset of the multimode wavefield. This ability is similar to that of finite...

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

... constrained by computational limitations. The forward modelling was performed on the perturbed model using the 2D acoustic frequency-domain finite...

Abstract: SAGD Production Monitoring by Seismic Refraction; #90172 (2014)

D. Dubucq, Tuhin Bhakta, P. Thore

Search and Discovery.com

...; right steam chamber added in the Mc Murray interval. Modeling is performed with a finite difference code. As we had no reliable shear velocity data...

Abstract: Numerical Model of Microseismicity in Hydrofracturing: Our Prediction for Seismic Moment Tensors; #90172 (2014)

A. Guest, Tony Settari

Search and Discovery.com

... flow is influenced by the fracture opening and orientation. We use the finite-difference scheme in order to solve the mechanical equilibrium...

Abstract: Application of Steam Flushing for Remediation of Multicomponent DNAPL Subsurface Contamination; #90172 (2014)

Brent E. Sleep, Zheng Zhang

Search and Discovery.com

... silica sand and a fine silica sand capillary barrier. A three-dimensional finite difference model for three-phase (water-gas-nonaqueous phase liquid...

Abstract: Surface-consistent Matching Filter for Time-lapse Processing; #90174 (2014)

Mahdi H. Almutlaq and Gary F. Margrave

Search and Discovery.com

... incremented by 10m. The maximum record length is 1s with a 4ms sampling interval. An acoustic finite-difference modeling algorithm is used to create the shot...