Sparse OBN acquisition in shallow water at CCS Sleipner field: The role of multiples in FWI

Sandrine David, Eddie Cho, Graeme Stock, Fons ten Kroode, M.A.H Zuberi

International Meeting for Applied Geoscience and Energy (IMAGE)

..., through acoustic finite difference modelling with an absorbing free surface condition. The synthetic data was subsequently used in an FWI sequence (up...

Subsalt imaging using elastic FWI: A case study from Walker Ridge, Gulf of Mexico

Chirag Parekh, Andrew Stephenson, Juan Perdomo, Claudia Flores, Christopher McMorland, Matt Vander Griend, Austin Boles, Andrew Fuhrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

..., doi: https://doi.org/10.1190/tle40050342.1. Regone, C. J., 2007, Using 3D finite-difference modeling to design wide-azimuth surveys for improved subsalt...

Abstract: High-resolution Automatic Microseismic Source Detections; #90187 (2014)

Stephen K. Chiu, Ulrich Zimmer, and Michael Davidson

Search and Discovery.com

... observational wells with two sources close to each other. The spatial separation between the two sources is 100 ft. A finite-difference modeling using...

Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)

Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

...  . 2 2 This boundary problem is approximated with a 4th order finite difference scheme in space and 2nd order factorization scheme in time (Kalitkin...

Abstract: Tomography of a Velocity Modeland Location of Microseismic Events with P, Sv and Sh Waves; #90224 (2015)

Malgorzata Chmiel and Thomas Bardainne

Search and Discovery.com

...). Relative detection and location To detect and localize microseismic events we use a relative migration-based approach which involves three steps...

Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals

Mike Perz, Josef Heim, Candace Bruins

Unconventional Resources Technology Conference (URTEC)

... was observed in the single-layer delay-time case. Figure 1. Reference (“ideal”) velocity model used in finite-difference modeling. Shallow velocity model...

The Influence of Formation Dip Angle on Buoyancy-Induced Gas Migration During Coal Seam Gas Production

Mohammad Sedaghat, Des Owen, Philip Hayes, James Underschultz, Suzanne Hurter, Andrew Garnett

Unconventional Resources Technology Conference (URTEC)

... the amount of the fluid exchange at the fracture-matrix interface (Gilman and Kazemi, 1983). A finite difference method (Mitchell and Griffiths, 1980...

Petroleum System in the Khmer Trough, Cambodia

Akihiko Okui, Akinori Imayoshi, Kohsuke Tsuji

Indonesian Petroleum Association

... for Integration of Generation, Migration and Accumulation)" is a finite difference code developed by the Technology Research Center of Japan National Oil...

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

.... 242-259; Jakubowicz and Levin, 1983, p. 34-56; Gibson et al., 1983, p. 1-33). For depth imaging using finite difference...

Ground water hydrology and geochemistry in the Eutaw aquifer. Sumter County, Alabama: Implications for monitoring hazardous waste disposal facilities.

Rona J.Donahoe

Alabama Geological Society

... Alabama using a three-dimensional finite difference hydraulic model described by Trescott (1975). One ofthe primary purposes ofthis study...

Computation of phase velocity direction using normalized wavefields

Kwangjin Yoon, Jungkyun Hyun

International Meeting for Applied Geoscience and Energy (IMAGE)

... the fly using wavefields at 3 continuous time steps ui-1, ui and ui+1 in the finite difference method. Figure 3 shows the computation of Poyn...

Simultaneous waveform inversion of seismic-while-drilling data for P-wave velocity, density, and source parameters

Jinji Li, Scott Keating, Nasser Kazemi, Roman Shor, Kristopher A. Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

...-receiver pair, 𝑺 is the finite-difference modeling operator, and 𝒇 is the source term. Here 𝜙(𝒙) includes the summation over frequencies, but we do...

Finite Difference Modelling: Part IV

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

...Finite Difference Modelling: Part IV Lasse Amundsen, Ørjan Pedersen, Martin Landrø Recent Advances in Technology Finite Difference Modelling: Part...

JAX acceleration of implicit FWI and field data application

H. V. Nguyen, A. Sekar, K. Wang, T. Zhang, T. Nemeth, U. Albertin, M. Eaid, K. Nihei, E. Wang, K. Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

... the wave equation. The approach described in this abstract also incorporates physics through finite difference solvers but does not use seismic data...

A Finite-difference Based Multi-scale Approach for Electromagnetic Digital Rock Modeling

Mengping Yu, Yibo Wang, Jin-Hong Chen, Ji Chen

Unconventional Resources Technology Conference (URTEC)

...A Finite-difference Based Multi-scale Approach for Electromagnetic Digital Rock Modeling Mengping Yu, Yibo Wang, Jin-Hong Chen, Ji Chen URTeC...

Effect of Gas-liquid Anomalous Diffusion on Production Behavior and Pressure and Rate Transient Responses in Unconventional Reservoirs

Gizem Yildirim, Erdal Ozkan

Unconventional Resources Technology Conference (URTEC)

... are expressed by Caputo’s representation and Muiro’s fractional finite difference approximation is used. A fully implicit computational scheme...

Dynamic Geo-Process Modelling: A Technique to Help Identify Favorable Prospects

Michael J. Zeltlin

Indonesian Petroleum Association

... approximate the solution the better the model. Two important techniques used to develop these approximations are the finite difference schemes...

Water-Gas Flow in Laminated and Heterogeneous Coal-Interburden Systems: The Effects of Gas Solubility

Mohammad Sedaghat, Des Owen, James Underschultz, Suzanne Hurter, Phil Hayes, Andrew Garnett

Unconventional Resources Technology Conference (URTEC)

... in the transfer term, indicating the amount of the fluid exchange at the fracture-matrix interface (Gilman & Kazemi, 1983). A finite difference URTEC-198320-MS 3...

Long-Term Effects of in Situ Leach Mining Restoration in the Oakville Aquifer System Near George West, Texas

Jim Kingston

GCAGS Transactions

... and soils maps. This information was incorporated into the U.S. Geological Survey three-dimensional finite-difference computer model to predict ground water...

Near Fracture Capillary End Effect on Shale Gas and Water Production

Riza Elputranto, I. Yucel Akkutlu

Unconventional Resources Technology Conference (URTEC)

... balance for the two-phase flow problem is subdivided by the integral finite difference method as follows (Pruess et al., 1999...

Caribbean Plio-Quaternary (5-0 Ma) Plate Interaction and Basin Development, Colombia-Venezuela-Trinidad Oil Province, by R. Higgs, #30058 (2008).

Search and Discovery.com

Thermal and Compaction Processes in a Young Rifted Basin Containing Evaporites: Gulf of Lions, France (1)

JEAN BURRUS and FRANCOIS AUDEBERT

AAPG Bulletin

... rocks. A two-dimensional finite-difference basin model, Temispack, simulates the sedimentation, compaction, and overpressures related to the low...

Southern Piceance Basin Model--Cozzette, Corcoran and Rollins Sandstones

Charles A. Brown, Thomas M. Smagala, Gary R. Haefele

AAPG Special Volumes

.... HARRIS, 1976, Direct finite difference simulation of a gas well with a finite capacity vertical fracture: SPE-AIME (Society of Petroleum Engineers...

Numerical modeling study of the CO2 trapping characteristics of thin-skinned fold and thrust belts: A case study of the Catawba Syncline, Virginia, U.S.A.

Lars W. Koehn, Phillip Prince, Ryan M. Pollyea

International Meeting for Applied Geoscience and Energy (IMAGE)

... for non-isothermal flow of water, CO2, and NaCl. The TOUGH3 code utilizes an integral finite volume method in space and a first-order finite difference...

A novel viscous pure-acoustic wave equation and its numerical implementation in 3D TTI media

Long Wu, Yixian Xu, Shigang Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... anisotropic wave equations: Geophysics, 84, no. 6, C323–C337, doi: https://doi.org/10.1190/ geo2018-0865.1. Li, X., and H. Zhu, 2018, A finite-difference...