A case study using FWI to image pre-Messinian target in the East Mediterranean Sea

Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed

International Meeting for Applied Geoscience and Energy (IMAGE)

... and implemented as the starting isotropic model for the post-salt region. Several isotropic reflection tomography updates were performed before...

Imaging a San Andres Reservoir with Interwell Seismic

James H. Justice, J. Craig Woerpel

West Texas Geological Society

... tomography with both shear and compressional waves, as well as interwell reflection profiling. Both sources and receivers operate at reservoir level...

Normal Moveout and Dip Moveout, C. L. Liner, #40037

Search and Discovery.com

Review: Geophysical Methods for Karst Detection and Mapping

T. L. Dobecki

Houston Geological Society Bulletin

... rock. A void/rock interface creates a significant acoustic impedance contrast which results in large reflection coefficients (nearly 100% of the seismic...

Shear-wave value for seismic imaging: Lupin 9C Seismic 3D Survey, Midland Basin, West Texas

Hermes Malcotti, Ranjan Dash, James Davenport, Gary Murphy, James DiSiena, James Gaiser

International Meeting for Applied Geoscience and Energy (IMAGE)

... radial and transverse components are shown to illustrate weak azimuthal anisotropy (see text). Using joint P- and PS-wave tomography, followed...

The application of seismic shothole drillers’ log data to petroleum exploration and development

I. Rod Smith

CSPG Bulletin

..., A. and Juhlin, C. 2006. Seismic tomography studies of cover thickness and near-surface bedrock velocities. Geophysics, v. 71, p. U77–U84. Best, M.E., Levson...

High Resolution Diffraction Imaging of Small Scale Fractures in Shale and Carbonate Reservoirs

Alexander M. Popovici, Ioan Sturzu, Tijmen J. Moser

Unconventional Resources Technology Conference (URTEC)

... as a complement to the structural images produced by reflection imaging. Diffraction Imaging is the imaging of discontinuities in the earth. Diffractions...

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

I. R. Gordon

AAPG Special Volumes

... TWO-WAY TIME Most two-dimensional seismic reflection lines are presented in the format of horizontal distance versus two-way traveltime (time...

erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).

Jubran Akram, Abdullatif A. Al-Shuhail

Search and Discovery.com

... is the normalized traveltime and τ* is the normalized total traveltime across the array. The wavelet response of the receiver array is where u is the Ricker...

Finite Difference Modelling: Part IV

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... of reflection and refraction of light can be based on a theory known as geometric optics or ‘ray theory’, where light waves are represented with simple geometric...

Relative Impedance Inversion of Seismic Traces by Means of Complex Trace Attributes (CTA Inversion) … 40 Years On!, #42179 (2018).

Kurt Grubbe, Sean McQuaid

Search and Discovery.com

... to identify possible reservoirs. Isolated layers as thin as a few milliseconds two-way traveltime may be resolved, if the noise level of the data is low. Field...

Chapter 23: Crustal Structure and Geologic History of the Espino Rift, Venezuela, Based on Potential Fields, Seismic Reflection, and Well Data

Lourdes Rodriguez, Paul Mann, Stuart Hall

AAPG Special Volumes

...Chapter 23: Crustal Structure and Geologic History of the Espino Rift, Venezuela, Based on Potential Fields, Seismic Reflection, and Well Data...

1.5 Crustal Sections: A Wide Angle Seismic Profile

V. J. Hughes, R. S. White, E. J. W. Jones, D. H. Matthews, J. A. Brewer, and D. K. Smythe

AAPG Special Volumes

... reflection profiles are used to map the shapes of crustal reflectors in two-way traveltime, and are thus a powerful tool in elucidating the geological...

Crustal Structure in Gulf of Mexico from OBS Refraction and Multichannel Reflection Data

A. K. Ibrahim, J. Carye, G. Latham, R. T. Buffler

AAPG Bulletin

...Crustal Structure in Gulf of Mexico from OBS Refraction and Multichannel Reflection Data A. K. Ibrahim, J. Carye, G. Latham, R. T. Buffler 1981 1207...

Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth

Isabel Cristina Florez, Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... Automated velocity-model-building methodologies such as reflection tomography are highly unstable under these seismic-data conditions. We took...

On the absorbing boundaries to replicate semi-infinite half-space in numerical seismic analyses using the finite element method

Tyler R. Hebert, James M. Bryce, Arka Prabha Chattopadhyay

International Meeting for Applied Geoscience and Energy (IMAGE)

... Drive, Huntington, WV 25755 Summary Computational analysis allows for easy replication of seismic tomography using numerical solving techniques...

Abstract: Recent Advances in Mapping Deep Permafrost and Gas Hydrate Occurrences using Industry Seismic Data, Richards Island Area, Northwest Territories, Canada; #90171 (2013)

Gilles Bellefleur

Search and Discovery.com

..., May 4-8, 2009 with this frozen / un-frozen variability of the permafrost zone. A 3D travel-time tomography algorithm produced a map of the permafrost...

Abstract: Recent Advances in Mapping Deep Permafrost and Gas Hydrate Occurrences using Industry Seismic Data, Richards Island Area, Northwest Territories, Canada; #90171 (2013)

Gilles Bellefleur

Search and Discovery.com

..., May 4-8, 2009 with this frozen / un-frozen variability of the permafrost zone. A 3D travel-time tomography algorithm produced a map of the permafrost...

Seismic Modeling of an Early Jurassic, Drowned Carbonate Platform: Djebel Bou Dahar, High Atlas, Morocco (1)

A. EWAN CAMPBELL and JAN STAFLEU

AAPG Bulletin

... to each reflection point is then doubled to give an apparent two-way traveltime. For a theoretical description of the image ray see Hubral (1977...

Seismic amplitude variation with angle response of hydrogen-saturated rock: Implications on subsurface monitoring

Chao Li, Shuvajit Bhattacharya

International Meeting for Applied Geoscience and Energy (IMAGE)

... approximation equations (Shuey, 1985), the reflection coefficient R pp (θ ) (0 < θ < 30◦ ) can be written as R pp (θ ) = R p + Rh sin2 θ , (20) (9) φ /φc...

Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases

M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso

Indonesian Petroleum Association

...Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases M. S. Jaya, E. A. Sentani...

Seismic Static Corrections, Don W. Steeples and Gregory S. Baker, Search and Discovery Article #40047 (2002)

Search and Discovery.com

Time-Lapse Imaging of a Hydraulic Stimulation Using 4-D Vertical Seismic Profiles and Fiber Optics in the Midland Basin

Robert Meek, Kevin Woller, Mark George, Robert Hull, Hector Bello, Jed Wagner

Unconventional Resources Technology Conference (URTEC)

... and sonic traveltime responses and may show a time-lapse signature. 3D vertical seismic profiles (VSPs) were acquired in a vertical well equipped...

Application of Visco-Acoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data, #41802 (2016).

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

Search and Discovery.com

... using ray-based reflection tomography techniques (Cavalca et al., 2011; Hu et al., 2011). However, to overcome the limitations of the ray-based methods...

Use of the Regulated Directional Reception Method in Exploration for Reefs in Bashkiria

Yu. N. Voskresenskiy, Ya. I. Shul’ts

Petroleum Geology: A Digest of Russian Literature

...., no. 2. 3. Rapoport, M. B., 1961, Reflection of seismic waves from non-reflecting boundaries: Izv. AN SSSR, Ser. Geofiz., no. 2. 4. Ryabinkin, L...