ABSTRACT: Anisotropic Imaging of Okubotin 3-D Seismic Survey; #90115 (2010)

Adeboye A. Oni, Gislain Madiba, and Berti Ozumba

Search and Discovery.com

... ‘hockey stick’ effect at long offsets. Resolution of the velocity challenge helps in the better imaging of steep dips and corrects for non-hyperbolic...

Wave-Front Diagrams in Seismic Interpretation

H. R. Thornburgh

AAPG Bulletin

... spreads with a circular front while in the surface formation. It is not difficult to see how the change in velocity of End_Page 187...

Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

Robert E. Sheriff

AAPG Special Volumes

... geology. Velocity filtering and the redundancy provided by recording with high degrees of multiplicity permit the attenuation of many types...

Abstract: Different Approaches to Shear Wave Prediction, by O.H. Afif, M. Ahmed, and H.H. Soepriatna,#90188 (2014)

Search and Discovery.com

Coupling Complex Resistivity, Geomechanical and Acoustic Properties and Permeability in Sandstone and Shale Reservoirs

Daisuke Katsuki, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

... in the figure. The curved radial surface of the sample was covered with plastic film tape to minimize the effect of water content change due to natural...

Stochastic model for migration and breakage of detrital and authigenic fines

Bryant Dang-Le, Abolfazl Hashemi, Cuong Nguyen, Grace Loi, Nastaran Khazali, Yutong Yang, Alexander Badalyan, Thomas Russell, Pavel Bedrikovetsky

Australian Energy Producers Journal

... to particle and bond sizes and aspect ratio, while the variations of pore and bond radii and aspect ratio almost have no effect. The breakage velocity...

Modelling of Drift of Nearby Icebergs Using Wind and Current Measurements at a Fixed Station

E. D. Soulis

CSPG Special Publications

... to induce a component of berg velocity, 4% of the wind speed and 25° to the right of its direction. Although this is a higher speed, the change...

A Case Study on the Challenges Overcome in the Merge of Seven On-Shore 3-D Surveys of Varying Acquisitions in Huila Department, Colombia

Henry Maldonado, Timothy Brooks, Lilia Maria Saavedra, Gilbert Gutierez, Albeiro Saavedra, Peter Watterson

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... the acquisitions and the subsequent impact on the final signal to noise ratio. In this particular project, there was a very great change in the signal...

GEO 2008 - Middle East Conference and Exhibition, March 2-5, 2008, Manama, Bahrain - Abstracts, #90077 (2008)

Search and Discovery.com

Abstract: Investigation of the Relationship between Seismic Velocity Dispersion Principles and the Permeability of Subsurface Porous Materials; #90174 (2014)

Adrienne Campbell, Winnie Pun, and Bernd Milkereit

Search and Discovery.com

... of the subsurface material. Thus, it is more practical to examine the effect of subsurface permeability on P wave velocity dispersion. Figure 2: Location...

Retrieving high-resolution acoustic impedance using full-waveform inversion in presalt reservoir setting, offshore Brazil

Akshat Abhishek, Alok K. Soni, Rene-Edouard Plessix, Martijn Blaauw, Jaydip Guha, Gautam Kumar

International Meeting for Applied Geoscience and Energy (IMAGE)

... amplitude effect in the reflected wavefield, we require viscoelastic anisotropic FWI formulation. Unlike convolutional inversion, this inversion...

Effects of Settling and Preferential Deposition of Sediment on Ripple Roundness Under Shoaling Waves

Naofumi Yamaguchi, Hideo Sekiguchi

Journal of Sedimentary Research (SEPM)

... velocity, the bed shear stress, and the effect of sediment settling on geometry of ripples: velocity asymmetry Au, mobility number Ψ, and a settling...

QUICK LOOK TECHNIQUES: A Method for Predicting Thick Sand Intervals from Seismic Sections

Subsurface Consultants & Associates, Inc.

Houston Geological Society Bulletin

... the sand interval. This change in fault angle can be seen in Growth Fault 1 on the depth corrected seismic section shown in figure 2. This change in fault...

ABSTRACT: The Adaptive Well Logging Data Interpretation in Gassmann's Fluid Substitution Modeling, by Deshenenkov, Ivan S.; Kozhevnikov, Dmitry A.; Kovalenko, Kazimir V.; #90142 (2012)

Search and Discovery.com

Applications and Limitations of Dip Shooting

E. E. Rosaire and Joseph L. Adler

AAPG Bulletin

... but uniform change of velocity horizontally. This results in a displacement of the image point in the direction of increasing velocity...

Structure of the Tokai segment from the integrated high-resolution seismic imaging: A case study from the eastern Nankai Trough

Andrzej Grszczyk, Rafael Almeida, Romain Brossier, Ludovic Mtivier

International Meeting for Applied Geoscience and Energy (IMAGE)

...flections, which combined with an abrupt change in velocity there leads us to interpret a duplex. In the middle wedge proper, the reflections are faint...

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

...% or less; however, in unconsolidated or loosely consolidated rocks the effect is much more severe. Gas in a sand can slow down the velocity by 20% or more...

Synthetic Seismograms and Their Uses

Abilene Geological Society

... gas usually slows the velocity down by 6% or less; however, in unconsolidated or loosely consolidated rocks the effect is much more severe. Gas...

The Effects of Topography on Sedimentation from Particle-Laden Turbulent Density Currents

Marcus I. Bursik , Andrew W. Woods

Journal of Sedimentary Research (SEPM)

... thinned, with the deposits associated with wider parts of the channel thinning more rapidly with distance. In contrast, if the topographic change...

Bed Configurations

J. C. Harms, J. B. Southard, R. G. Walker

Special Publications of SEPM

... flows with the same 2-3 CHANGE IN VELOCITY WITH TIME KIND OF FLOW 1 UNIDIRECTIONAL 2 I --) ------> ----> ---> STEADY I (NONPULSING...

Experiments on the Thickness of Beds Deposited by Turbidity Currents

G. V. Middleton, W. J. Neal

Journal of Sedimentary Research (SEPM)

... of 20% and 40% by volume. The effect of poor sorting was investigated by mixing the coarse and fine glass beads to produce a poorly sorted sediment...

The Effect of High Pressure and Temperature Variations on the Hydraulic of Dual Gradient Drilling Operations Using Lifting Method

Bonar Tua Halomoan Marbun, Hafiz Adi Kurnia

Indonesian Petroleum Association

... is required to determine the effect of the change in temperature and pressure to the mud density and rheology, since each type of based mud has its own...

Abstract: Impact of Accurate Velocities from Signal Fidelity Enhancement for Reliable Seismic Interpretation - Example from Kuwait, by Wael A. Zahran, Riyanto Purbokusumo, Nawaf Al-Muatairi, and Hamed M. Hameed; #90105 (2010)

Search and Discovery.com

Integrating 3-D seismic data, field analogs, and mechanical models in the analysis of segmented normal faults in the Wytch Farm oil field, southern England, United Kingdom

Simon A. Kattenhorn, David D. Pollard

AAPG Bulletin

... normal fault styles in the reservoir. The effect of faulting on transmissibility within the reservoir is evidenced by high-pressure differentials across...

ABSTRACT: Grain sorting effect on seismic velocities: rock physics models for reservoir quality prediction; #90007 (2002)

Mario A. Gutierrez, Jack Dvorkin, Amos Nur

Search and Discovery.com

... that predicts the effect of textural sorting and variable composition and fabric (e.g. grain- and mud-supported fabric) on velocity and porosity. The models...