Abstract: Application of Viscoacoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data; #90246 (2016)

Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones

Search and Discovery.com

... is applied in the data domain and is capable of creating a high-resolution Earth models through a wavefield-consistent solution. FWI derived velocity models...

Profiling Complex Flow in Deviated Wells- A North Sea Case Study

Search and Discovery.com

Investigating Natuna Carbonate Platform Complexities Through Integration of Multi-Geophysical Datasets From Seismic FWI PSDM Reprocessing

Muhammad Nauvall Juliansyah

Indonesian Petroleum Association

... processing. Three geophysical datasets including PSDM seismic stack, velocity, and variance are utilized as the main datasets. Volumes were flattened...

All that wobbles isnt necessarily azimuthal anisotropy

Helen Debenham, Jennifer Badry, Mohamed Megebry

Petroleum Exploration Society of Australia (PESA)

... of the acquired data during the PreSDM velocity model building, it was possible to correct for most of the variation simply with a laterally variable...

Earth crustal analysis of Northwest Sabah region inferred from receiver function method

Abdul Halim Abdul Latiff, Faridah Othman

Geological Society of Malaysia (GSM)

..., Malaysia. Additionally, the work conducted is to determine the thickness and velocity layer of the Earth’s crust up to the Moho boundary. Receiver...

Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data

Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto

Indonesian Petroleum Association

... the samples method. This is done in order to enter the PostDM phase. Dix conversion is applied to convert the rms velocity to the velocity interval. From...

Abstract: Seismic Detection of Cracks in Carbonates Associated with Potash Mining; #90171 (2013)

Zimin Zhang and Robert R. Stewart

Search and Discovery.com

.... Kuster, G.T., and Toksöz, M.N., 1974, Velocity and attenuation of seismic waves in two-phase media: Part I. theoretical formulations. Geophysics, 39...

Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202 (2022)

Said Gaci, Mohammed Farfour, and Saliha Amoura

Search and Discovery.com

...Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202...

Seismic Foldout: Potential Prospectivity Identified in the Orphan Basin

Yermek Balabekov, Yang Yang, Sriram Arasanipalai, PGS Ultima

GEO ExPro Magazine

... demonstrate PGS Ultima provides not only the highresolution velocity model but also relative impedance and relative density estimates in a challenging area...

Mexico: Maximus Survey: Opportunities in Deepwater Gulf of Mexico

Jeroen Hoogeveen, Jeniffer Masy, MCG, Geoex

GEO ExPro Magazine

... and sedimentary packages from shallow water to deepwater Gulf of Mexico. The data has been reworked to improve the velocity model, based on a better...

Application of Robust Noise Reduction on a Land 3D Seismic Data

Agus Abdullah, Jesse Shaw

Indonesian Petroleum Association

... velocity calculation by beamforming, (2) Averaging of the phase velocity estimates and (3) Applying the averaged phase velocity itself to attenuate...

Land FWI in the Sultanate of Oman: Challenges and advances on the road to high-resolution velocity

Mohammad Sheryar Farooqui, Yonghe Guo, Azza Al Hasni

International Meeting for Applied Geoscience and Energy (IMAGE)

... of surface waves is related to their phase velocity and minimum pickable frequency. For the deblended (active) data, this depth was approximately 150 m...

An "Antidune" Phase of Eolian Ripple Marks

Bradford Willard

Journal of Sedimentary Research (SEPM)

... there is produced a smooth surface of drifting sand, the so-called "smooth phase." With further increase in velocity of water currents beyond...

Statistical imaging through strongly scattering near-surface with path summation techniques

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the migration velocity model introduce phase errors, hampering proper wavefield focusing (Xie et al., 2016), and fully mapping near-surface complexities...

Extended Abstract: Recent Advances in Pore Pressure Prediction in Complex Geologic Environments

Alan R. Huffman

GCAGS Transactions

... by overly simplistic estimates of the Earth’s velocity field. Geopressure prediction techniques have started incorporating more sophisticated velocity...

Scholte waves from active and passive SB-DAS recordings and their relevance for CCUS: Synthetic and real examples from the North Sea

Simone Re, Ran Bachrach, Ali Sayed, Dmitri Skorinski, Massimo Clementi

International Meeting for Applied Geoscience and Energy (IMAGE)

... as absolute phase velocity difference are show in Figure 2a (5%), 2b (10%) and 2c (15%) and they demonstrate a direct proportionality relationship between...

Elastic AWI and RWI in the Santos Basin

Tenice Nangoo, Nikhil Shah, Adrian Umpleby, John Armitage, Mike Warner, Gustavo Catao Alves, Andre Bulcao, Analena Mileo Camara de Oliveira

International Meeting for Applied Geoscience and Energy (IMAGE)

... to build highquality velocity models for sub-salt imaging using only acoustic wave propagation. This is achieved by adaptively matching acoustic data...

Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic

Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim

Unconventional Resources Technology Conference (URTEC)

...Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic Scott Taylor, Jeremy King...

Sedimentary Basins and Basement Highs Beneath the Polar Shelf North of Axel Heiberg and Meighen Islands

D.A. Forsyth, I. Asudeh, D. White, R. Jackson, R.A. Stephenson, A.F. Embry, M. Argyle

CSPG Bulletin

... of Meighen and Axel Heiberg islands. Solid line boundaries represent significant velocity changes derived from fitting ray traced travel times and phase...

Bed Configurations in Steady Unidirectional Water Flows. Part 3. Effects of Temperature and Gravity

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

... U0-D0 graphs of Figure 3. Prior knowledge of the arrangement of bed-phase stability fields in the dimensionless depth-velocity-size diagram thus allows...

Phase Residules Can Reveal Stratigraphic Features, by Oswaldo Davogustto; #41141 (2013).

Search and Discovery.com

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

... velocity model. The new velocity building technique takes advantage of both wave phase and amplitude information and produces more accurate results than...

Poro-acoustoelasticity FD simulation of elastic wave propagation in prestressed porous media

Haidi Yang, Li-yun Fu

International Meeting for Applied Geoscience and Energy (IMAGE)

... to solve a first-order velocity-stress formulation of poro-acoustoelasticity equations for elastic wave propagation in prestressed porous media. We...

Australia: Depth Reprocessing Rejuvenates Gippsland Basin

Peter Baillie, Paul Carter, Jarrad Grahame, Joe Zhou, Nigel Mudge, CGG

GEO ExPro Magazine

... to extensive multiple generation and data contamination. The impact on data quality in this area is exacerbated by the presence of high-velocity...

Improving subsalt images using reflection FWI on WAZ data: Examples from the Gulf of Mexico

Maksym Kryvohuz, Yihua Cai, Sebastian Ramirez, Robert Schelstrate, Gislain Madiba

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Sebastian Ramirez, Robert Schelstrate, Gislain Madiba, Shell International Exploration and Production Company Summary Accurate velocity model is critical...