Effects of Biogenic Silica on Acoustic and Physical Properties of Clay-Rich Marine Sediments (1)

JANE S. TRIBBLE , FRED T. MACKENZIE , JOZSEF URMOS , DAVID K. O'BRIEN , and MURLI H. MANGHNANI

AAPG Bulletin

...------------------------------ Figure 9 shows velocity and mineralogy data as a function of depth for Site 467. In the upper 400 m of the hole, the V[p]-depth...

The Geophysicists' Bane: Multiple Suppression on the North West Shelf

C. R. T. Ramsden, M. R. Hobson, R. Cooper

Petroleum Exploration Society of Australia (PESA)

... lines of equal slowness for all tau to produce each p trace in the transform. For example, a linear event in the space-time (x,t) domain with velocity...

The Effects of Grain-Density Variation on Turbidity Currents and Some Implications for the Deposition of Carbonate Turbidites

James M. Hodson, Jan Alexander

Journal of Sedimentary Research (SEPM)

..., and Peakall, J., 2001, Mean flow and turbulence structure of sediment-laden gravity currents: new insights using ultrasonic Doppler velocity profiling...

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Comparison of Various Depth Conversion Techniques in a Complex Foreland Thrust Belt Setting: Case Study in the North Seram Basin, Banda Arc

Muhammad Nauvall Juliansyah, Bayu Permana Putra, Agung Donurizki

Indonesian Petroleum Association

... (Kemp and Mogg, 1992). TIME TO DEPTH CONVERSION METHODS Layer Cake Velocity Method Layer cake velocity method was conducted mainly using interval...

Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013)

Lejia Han, Joe Wong, John C. Bancroft, and Robert R. Stewart

Search and Discovery.com

... accuracy. Velocity values for rock formations can be determined using refraction analysis on first-arrival times. However, a more accurate alternative...

High resolution imaging by dynamic matching FWI in the presence of AVO effects

Fuchun Gao, Shuqian Dong, Yang He, James Sheng, Faqi Liu, Bin Wang, Carlos Calderon, Yuriy Ivanov, Fanny D. Marcy, Ole E. Aaker

International Meeting for Applied Geoscience and Energy (IMAGE)

... that there is a decrease in density and an increase in velocity (indicated by blue arrows) at a depth corresponding to the reflection event where polarity...

High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

... to using FWI is the need for low frequencies to be present in the seismic data, or, the initial starting velocity model must contain the correct low...

Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin

K. Bradey

Papua New Guinea (PNG) Petroleum Convention Proceedings

... field for depth conversion purposes. The problems associated with localised velocity anomalies when using seismic data to determine the velocity field...

Potential Field Data Guided Seismic Forward Modelling of Basement Structures: A Case Study from Offshore Nile Delta Basin

Said Hanafy, Shastri L. Nimmagadda, Sharaf Eldin Mahmoud

Petroleum Exploration Society of Australia (PESA)

... with confidence using the existing seismic events. Only one stacking velocity function has been applied at CDP 1400, which is located at the middle part...

3D Palaeo-Migration Pathway Analysis: An Example from the Timor Sea

G. Chen, K. C. Hill, N. Hoffman, G. W. O'Brien

Petroleum Exploration Society of Australia (PESA)

... fluid content of the rock and the increasing dominance of the matrix velocity. In this way, we can use assessments of velocity as a function of depth...

The Diffusion of Grains in the Lee of Ripples, Dunes, and Sand Deltas

J. R. L. Allen

Journal of Sedimentary Research (SEPM)

... the effective falling velocity of every solid-phase element. The search at present, then, must be for some empirical function that will describe...

Backscatter analysis of vehicle-generated noise using symmetric autoencoders

Sanket Bajad, Pawan Bharadwaj

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Faster, better: Shear-wave velocity to 100 meters depth from refraction microtremor arrays: Bulletin of the Seismological Society of America, 91, 347...

Abstract: 3D Coil Shooting Survey on Tulip Field: Data Processing Overview … Planning, Challenges and Opportunities (Geophysics Poster 18)

Michelle Tham, Michele Buia, Riccardo Vercesi, Swee Leng Ng, Andreas Tyasbudi Waluyo, Suyang Chen

Geological Society of Malaysia (GSM)

..., 1984; Durrani et al, 1987) survey on the Tulip discovery. The acquired data was processed through to depth imaging utilizing multi-azimuth...

Chapter 5: Seismic Trace Inversion

Tom Wittick

North Texas Geological Society

.... Integrating the reflection coefficient series will generate an acoustic impedance series or a velocity function if density is treated as a constant...

Seismic Trace Inversion

Abilene Geological Society

... or the derivative. Integrating the reflection coefficient series will generate an acoustic impedance series or a velocity function if density...

The Effects of Deposit Feeding Oligochaetes on Particle Size and Settling Velocity of Lake Erie Sediments

Peter L. McCall

Journal of Sedimentary Research (SEPM)

... and settling velocity of Lake Erie sediments resulting from tubificid feeding, discuss the problems of using standard methods of grain size analysis...

The Development of a New Method of Seismic Velocity Determination

F. P. Kokesh

GCAGS Transactions

... be computed. For the arrangement shown in Fig. 1, the equation is: 2Z = V T (1) Where: Z is depth of reflecting bed V is average velocity T is two-way...

A Statistical Approach to Assessing Depth Conversion Uncertainty on a Regional Dataset: Cooper-Eromanga Basin, Australia

David Kulikowski, Catherine Hochwald, Dennis Cooke, Khalid Amrouch

Petroleum Exploration Society of Australia (PESA)

...; average (pseudo) velocity, time-depth trend, kriging with external drift using TWT, and kriging with external drift to tie stacking velocities to average...

Abstract: Inverse Modeling the Quality Factor in an Attenuating Medium; #90171 (2013)

Dali Zhang, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

... of the partial fraction decomposition for the reconstructed spectral function F ( s) . The quality factor Q is calculated using the above derived formula...

Source location using physics-informed neural networks with hard constraints

Xinquan Huang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... (km/s) Depth (km) 2 4 0.0 c) 0 Depth (km) 6 Velocity (km/s) Depth (km) Depth (km) a) 0 2 Since we are using the reference frequency approach...

DAS Recorded Body and Tube Wave Generated by Perforation Shots: Analysis and Numerical Modeling for Completion Monitoring and Reservoir Characterization

Shuang Zhang, Aleksei Titov, Vikram Jayaram, Hector Bello, Robert Hurt, Ge Jin

Unconventional Resources Technology Conference (URTEC)

... the exact depth of the perforations. However, in this work, we aim to extract more information from the DAS data during perf shots, such as using the data...

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...

ABSTRACT: Resolution of Static Corrections in Sand Dune Regions: A successful Case History; #90051 (2006)

Koshy Thomas Thayyil, Ralph Bridle

Search and Discovery.com

... by adding this time to the time from base of sand to final datum, using a velocity model derived from upholes. High and low frequency components within...