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

... in the migration because of accumulative traveltime errors caused by an inaccurate velocity model. To mitigate this issue, we present a coherent-stack...

How distinctive are flood-triggered turbidity currents?

Catharina J. Heerema, Matthieu J.B. Cartigny, Ricardo Silva Jacinto, Stephen M. Simmons, Ronan Apprioual, Peter J. Talling

Journal of Sedimentary Research (SEPM)

... to identify river-flood-triggered turbidite deposits, which are largely based on the assumption that a characteristic velocity structure of the flood...

Combining PSDM and Seismic Modeling to Reduce Uncertainties in Time Structural Interpretation

William Agudelo, José Fernando Gamboa, Saúl Guevara, Carlos Piedrahita, Luis Ernesto Rojas, Martín Morales, Héctor Alfonso

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... settings, such as thrust faults and velocity inversions. In many cases little or not borehole information is available at target depth, so...

Extended Abstract: Advances in Interpretation & Imaging

P. Beale

Southeast Asia Petroleum Exploration Society (SEAPEX)

... migration uses more, and better velocity information. Post Stack Depth Migration (“PoSDM”) – will place the seismic image in it’s correct lateral...

Illuminating the Complex Geology of the UK Faroe Shetland Basin

Antonio Castiello, Gareth Venfield, Jens Beenfeldt

GEO ExPro Magazine

... acquisition azimuths. The FSB is known for having large lateral and vertical velocity gradients due to shallow injectites, alluvial deposits and intrusive...

Inferring Stratigraphy from Seismic Data

R. E. Sheriff

AAPG Bulletin

... and attitude of reflecting interfaces has been supplemented in recent years by measurements of velocity and amplitude for stratigraphic and lithologic...

ABSTRACT: Porosity-Velocity Distribution in Stratigraphic Sequences: The Marion-Yin Model; #90013 (2003)

JUAN FLOREZ, GARY MAVKO

Search and Discovery.com

...ABSTRACT: Porosity-Velocity Distribution in Stratigraphic Sequences: The Marion-Yin Model; #90013 (2003) JUAN FLOREZ, GARY MAVKO AAPG Search...

Abstract: Microseismic Event Location Accuracy Enhancement using Anisotropic Velocity Models; #90172 (2014)

Michael Jones, Richard Parker, Shawn Maxwell

Search and Discovery.com

...Abstract: Microseismic Event Location Accuracy Enhancement using Anisotropic Velocity Models; #90172 (2014) Michael Jones, Richard Parker, Shawn...

Seismic Velocities, by D.S. MacPherson, #40150 (2005).

Search and Discovery.com

Permian Basin Seismicity: Looking Backwards, Moving Forwards, #11082 (2018).

Diane Doser, Mark Baker

Search and Discovery.com

... that need to be considered as we move forward include: 1) Velocity models for the location of earthquakes should a) account for anisotropy from...

Integrating an exploration OBN into a full-scale prospect maturation workflow: Gulf of Mexico Lower Tertiary

Scott Yurman, Marcus Cahoj

International Meeting for Applied Geoscience and Energy (IMAGE)

..., high fidelity seismic velocities can be used to estimate rock, fluid, and pressure parameters. However, a seismic velocity that generates a good...

Application of formation pressure prediction technique based on high-density three-dimensional seismic constraints in complex structural zones

Baoli Yu, Keyu Liu, Chao Li, Peng Chen, Baorong Xu, Jia Chen, Wenchao Xiang, Bo Yuan

International Meeting for Applied Geoscience and Energy (IMAGE)

... pressure (LU, 2021). The prediction of formation pressure mainly depends on the response of pressure to formation velocity. At present, there are two...

Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography

Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

...Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman...

3D model-building technique by fusing near surface and deep structure and its applications

Luo Kaiyun, Yang Jian, Ma Lan, Men Zhe, Long Bo

International Meeting for Applied Geoscience and Energy (IMAGE)

... technique based on constant velocity blocks focuses on whether deep geological structures are accurate and ignores to accurately describe near surface...

Land seismic multi-parameter FWI imaging

Mason Phillips, James McLeman, Vlada Avramovic, Tom Rayment, Stuart Schmitt, Mike Varner, Yasser Khalifeh, Ahmad Ammar Chahine, Eskil Jersing

International Meeting for Applied Geoscience and Energy (IMAGE)

...) imaging uses minimally processed field data to simultaneously estimate a subsurface velocity model and a high-resolution reflectivity image using the full...

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

.... In addition, static correction will determine the velocity model created. Travel time tomography has a role to facilitate the calculation...

Particle Roundness and Surface Texture Effects on Fall Velocity: NOTES

Garnett P. Williams

Journal of Sedimentary Research (SEPM)

...Particle Roundness and Surface Texture Effects on Fall Velocity: NOTES Garnett P. Williams 1966 Vol. 36 No. 1. (March), Fall velocity measurements...

Entrainment and Distribution of Different Sand Sizes Under Water Waves

Peter Nielsen

Journal of Sedimentary Research (SEPM)

.... L., AND ISAACS, F. D., 1977, The motion of a small sphere in a rotating velocity field: a possible mechanism for suspending particles in turbulence...

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

Zimin Zhang and Robert R. Stewart

Search and Discovery.com

.... We find that cracked rocks can display a significant velocity decrease for both P- and S-velocities. For aligned cracks, velocity anisotropy was also...

Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)

Raul Cova, David Henley, and Kris Innanen

Search and Discovery.com

... to very low velocity values the magnitude of the S-wave statics is several times larger than the P-wave statics, producing a very destructive effect...

Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth

emamedov

Search and Discovery.com

... that integrates all available geologic information into the interpretation of the seismic velocity model. Close collaboration between the exploration...

Time-Lapse Seismic and Geomechanics

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... that such stretching will reduce the P-wave velocity of the rock, and hence will introduce an overburden time shift. Guilbot and Smith (2002) used 4D...

Structural and Tectonic Evolution of Oceanic Crust within the Jurassic Quiet Zone, Offshore Morocco: Chapter 14: African and Mediterranean Margins

James S. Holik, Philip D. Rabinowitz

AAPG Special Volumes

... velocity spectra analysis define a velocity inversion between the UCF (4.7 km/sec) and the underlying sediments (3.1 km/sec). A deep crustal layer...

Depth Imaging Coil Data: Multi Azimuthal Tomographic Earth Model Building and Imaging of Tulip (Paper A15)

S. Chen, M. Buia, L. Livraghi, M. Bakhrudin, M. Tham, M. Bayly, S. Ng, O. Zdraveva

Geological Society of Malaysia (GSM)

... and enhancing amplitude fidelity, but also improving the tomographic velocity model updating and imaging stages. However, velocity model building with full...

Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods

I. R. Gordon

AAPG Special Volumes

... that you deem appropriate. OTHER TYPES OF MAPS Velocity Gradient Maps A velocity gradient map is constructed at an intermediate step between...