Abstract: P- and S-Wave Velocity Measurements and Pressure Sensitivity Analysis of AVA Response; #90211 (2015)

Tiewei He and Douglas Schmitt

Search and Discovery.com

...Abstract: P- and S-Wave Velocity Measurements and Pressure Sensitivity Analysis of AVA Response; #90211 (2015) Tiewei He and Douglas Schmitt...

Abstract: Model Parametrization Strategies for Newton-Based Acoustic Full Waveform Inversion; #90224 (2015)

Amsalu Y. Anagaw

Search and Discovery.com

... studies the effects of model parameterizations on velocity model building using full waveform inversion with Newton-based optimization method. Three...

Abstract: Improved Imaging of a Fold and Thrust Belt Regime, Onshore Trinidad, by Means of the Common Reflection Surface (CRS) Method; #90238 (2015)

Dennis Otto, Philip Schlueter, Terrell Dhanpaul, Samuel Ragbir, Curtis Archie, and Nancy Gallai-Ragobar

Search and Discovery.com

.... Another key step was the CRS stacking velocity analysis to create an improved and reliable stacking velocity field. For that purpose, preliminary CRS...

Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018)

Yujin Liu, Yan Wu, Xiongwen Wang, Tong W. Fei, Yi Luo

Search and Discovery.com

...Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018) Yujin Liu, Yan Wu, Xiongwen Wang...

Abstract: Near Surface Characterization of Middle East Land Data by Elastic Full-Waveform Inversion of Surface Waves; #91209 (2025)

Anna Sedova, Mathieu Reinier, Daniela Donno, Gilles Lambaré, Diego Carotti

Search and Discovery.com

... it for creating a detailed shear-wave velocity (Vs) model of the shallow subsurface by inverting it with elastic full-waveform inversion (FWI). Elastic FWI...

FWI for the complex Walker Ridge salt province using streamer data

Dorothy Ren, Xin He, Siyun Xu, Fei Gao, Feng Lin, Jiawei Mei

International Meeting for Applied Geoscience and Energy (IMAGE)

... challenges to subsalt imaging, especially when the input data is suboptimal. Legacy images of streamer data from conventional velocity model building (VMB...

Tomography Techniques Applied to Near Surface Velocity Models in Complex Areas of Colombia

Jorge Monsegny, Saúl Guevara

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...Tomography Techniques Applied to Near Surface Velocity Models in Complex Areas of Colombia Jorge Monsegny, Saúl Guevara Tomography techniques applied...

Abstract: Basement Structure under the Central Eromanga Basin from Seismic Refraction Studies

J. Lock

Petroleum Exploration Society of Australia (PESA)

... spaced at 1.875 km intervals out to distances of 75 km to"study the velocity structure of the Eromanga sequences, underlying basins and basement. All...

Interferometry derived S-wave velocity model with geological constrains for induced seismicity monitoring

Galina Simeonova, Dmitry Alexandrov, Toufik Chtouki, Petr Kolnsk, Leo Eisner, Tijmen Jan Moser, Umair Waheed, Sherif Hanafy, Barbara Cox

International Meeting for Applied Geoscience and Energy (IMAGE)

...Interferometry derived S-wave velocity model with geological constrains for induced seismicity monitoring Galina Simeonova, Dmitry Alexandrov, Toufik...

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... imaging efforts, lacks well calibration, and does not fit well the geological model The resulting seismic image suffers from the velocity issues...

Can Sparse OBN Equal Savings and Data Quality?

Yannick Cobo, Rodrigo Felicio, Carlos Calderon, Paul Farmer, ION

GEO ExPro Magazine

... to compare how different geometries might impact the ability to build accurate velocity models. Geology The study area is in ultradeep waters (2 km...

Imaging the presalt with elastic FWI using OBN data

Gabriel Brando, Benjamin Huard, Luis Cypriano

International Meeting for Applied Geoscience and Energy (IMAGE)

... significantly improves the illumination of the deep pre-salt targets and the accuracy of velocity models achievable by full-waveform inversion (FWI...

Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally

Agus Muharam, Frank Musgrove

Indonesian Petroleum Association

... horizontal wells (out to a kilometer or more) are becoming common in field developments. In areas where overburden velocity varies laterally, it becomes...

Critical Depth Uncertainty Analysis for Accurate Well Planning at Tangguh

Nurfiana Rachmawati

Indonesian Petroleum Association

... continuity were much superior and faults were more obvious and easier to pick. An accurate velocity model is the key to getting a good image...

Seismic Line Across the Wind River Thrust Fault, Wyoming

W.L. Basham, W.F. Martin

Rocky Mountain Association of Geologists

... Green River Basin (Figs. 2,3). It also illustrates an apparent anticline beneath the thrust fault which is the result of lateral velocity variation...

Abstract: Improving Subsalt Imaging Using 3D Basin Model Derived Velocities, by Stephan PETMECKY, Martin L. ALBERTIN, and Nick BURKE; #90066 (2007)

Search and Discovery.com

Modern Seismic Imaging To Address Complex Velocity And Its Role In Manora Field Development, Gulf Of Thailand

Search and Discovery.com

Quantification of pore structure and its effect on sonic velocity and permeability in carbonates

Ralf J. Weger, Gregor P. Eberli, Gregor T. Baechle, Jose L. Massaferro, Yue-Feng Sun

AAPG Bulletin

...Quantification of pore structure and its effect on sonic velocity and permeability in carbonates Ralf J. Weger, Gregor P. Eberli, Gregor T. Baechle...

The effect of morphology on postmortem transportation of bivalves and its taphonomic implications

Devapriya Chattopadhyay, Ashish Rathie, Anirban Das

PALAIOS

..., and ornamentation played an important role in dictating the hydrodynamic properties of shells. This study demonstrates that threshold current velocity...

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

...Diving wave tomography: Velocity modelling using first arrival traveltime Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu Bulletin...

Deposition of Sand by Suspension Currents: Experimental and Theoretical Studies

J. K. Ghosh, B. S. Mazumder, M. R. Saha, Supriya Sengupta

Journal of Sedimentary Research (SEPM)

... in the process of formation of a bed when the flow velocity is decreased. The size distribution deposited closely reflects the one present in suspension...

ABSTRACT: Capturing Bulk Rock Volume (BRV) Uncertainty - A workflow incorporating seismic (pre-stack and post stack data) and well data

Abigail Maxwell

Geological Society of Trinidad & Tobago

...: Advanced geophysical methods for oil & gas reservoirs Key Words: bulk Rock Volume, depth uncertainty, seismic data, velocity uncertainty...

The SDP Dip Plotter

W. S. Hawes

Oklahoma City Geological Society

... of assumptions chosen and the resultant equations are valid only to the extent to which they approximate actual subsurface conditions of velocity distribution...

Star: Shallow Time Anomaly Replacement

Michael O. Marcoux, Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

...Star: Shallow Time Anomaly Replacement Michael O. Marcoux, Lee Lu 1982 37 44 The presence of spatially varying low velocity thin layers in the near...

Seismic Refraction Measurements of Crustal Structure in Oklahoma

E. Tryggvason, B. R. Qualls

Oklahoma City Geological Society

... variations in P. velocity and their effect on the location of epicenters, Bull. Am. Seismol. Soc., 52, 1037-1046, 1962. Pakiser, L. C., and J. S. Steinhart...