A practical implementation of data-space Hessian in the time-domain formulation of source extended full-waveform inversion

Gaoshan Guo, Stephane Operto, Ali Gholami, Hossein S. Aghamiry

International Meeting for Applied Geoscience and Energy (IMAGE)

..., source extensions) such that simulated data closely match observed data with inaccurate velocity models. Then, the model parameters are updated...

Seismic Acquisition in Papua_What's Special About Ocean Bottom Cable?

Yayat Supriatna

Southeast Asia Petroleum Exploration Society (SEAPEX)

... data but OBC has special ambient and source generated noise problems. In Tangguh the upside to using OBS are better wellties, improved low frequencies...

Abstract: Seismic Time-Frequency analysis by Empirical Mode Decomposition; #90187 (2014)

Jiajun Han and Mirko van der Baan

Search and Discovery.com

...) decomposes a seismic signal into a sum of oscillatory components, with guaranteed positive and smoothly varying instantaneous frequencies. Analysis...

Seismic Line Across the Wind River Thrust Fault, Wyoming

W.L. Basham, W.F. Martin

Rocky Mountain Association of Geologists

... to analyze near surface velocity anomalies because the rays making up the stacks follow different paths. The theoretical time delay related...

Population Breaks in Grain-Size Distributions of Sand--A Theoretical Model

Kweku-Mensah O. Sagoe, Glenn S. Visher

Journal of Sedimentary Research (SEPM)

... sediments: Sedimentology, v. 18, p. 159-219. NORDIN, C. F., AND G. R. DEMPSTER, JR., 1963, Vertical distribution of velocity and suspended sediment...

Investigating Distributed Acoustic Sensing Performance for Hydraulic Fracturing Monitoring Under Controlled Conditions

Dmitry Kuznetsov, Roman Korkin, Maxim Chertov, Joel Le Calvez

Unconventional Resources Technology Conference (URTEC)

... with flow rates. The results show that direct interpretation of signals at different extracted frequency bands (FBE) requires careful calibration...

Bed Configurations

Gerard Middleton, John B. Southard

Special Publications of SEPM

... velocity causes the bed to be molded correspondingly into a train of waves in phase with the water-surface waves. As the Fraude number of the mean flaw...

Production Studies Using NMR and High-Frequency Dielectric Permittivity

Search and Discovery.com

The Effects of Seismic Data Conditioning on Pre-Stack Simultaneous Impedance Inversion

Scott W. Singleton

GCAGS Transactions

... is so close that different lithologies can be identified due to their different p-wave velocity (Vp) / s-wave velocity (Vs) ratios (shifts...

Accommodation and Sedimentary Architecture of Isolated Icehouse Carbonate Platforms: Insights from Forward Modeling with CARB3D+

Richard J. Paterson, Fiona F. Whitaker, Gareth D. Jones, Peter L. Smart, David Waltham, Graham Felce

Journal of Sedimentary Research (SEPM)

... of the deep-sea sedimentary and continental ice cores (Hays et al. 1976; Ruddiman 2001). However, the dominance of different orbital frequencies appears...

Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data

A. A. Tabakov, V.N.Ferentsi, H. Gravini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... reflected waves trace. To correct calculate this trace it is necessary to take into account besides velocity model also well intersection angles...

Depositional facies analysis and modeling of the Judy Creek reef complex of the Upper Devonian Swan Hills, Alberta, Canada

Y. Zee Ma, Andrew Seto, Ernest Gomez

AAPG Bulletin

... is observed, the sum of each facies probabilities from their probability map should be equal to their declustered global frequencies (Ma, 2009b).Depositional...

Well to Seismic Ties Modeling with the Adaptive Log Analysis, #40823 (2011)

Ivan S. Deshenenkov, Dmitry A. Kozhevnikov, Kazimir V. Kovalenko

Search and Discovery.com

... contact author directly. velocity and density; the second one is carried out using adaptive model with spontaneous potential (SP) log, gamma-ray (GR) log...

The Future of Marine Seismic Acquisition?

Luc Haumonté

GEO ExPro Magazine

... in leaps and bounds. From the early days of oil exploration, when sound waves from dynamite explosions were recorded on a single hydrophone, through...

Abstract: Robust Surface-Consistent residual Statics and Phase Correction…Part 1; #90224 (2015)

Nirupama Nagarajappa and Peter Cary

Search and Discovery.com

... and different source types. In processing, most methods to correct static errors use cross-correlation of trace pairs in a surfaceconsistent framework...

Statistical Time-Series Analysis and Sedimentological Tuning of Bedding Rhythms in a Triassic Basinal Succession (Southern Alps, Italy)

Florian Maurer, Linda Hinnov, Wolfgang Schlager

Special Publications of SEPM

... and orbital interpretation of bedding rhythms have yielded very different estimates on the duration of Middle Triassic stages. Recently, a core...

Microseismic Event Location Using Multiple Arrivals: Demonstration of Uncertainty Reduction

Zhishuai Zhang, James W. Rector, Michael J. Nava

Unconventional Resources Technology Conference (URTEC)

... and velocity model calibration. Validation of the developed method was performed on perforation shots and shows that using head waves instead of polarization can...

Simple Models for the Stress-Dependence of Anisotropic Seismic Velocities in Fractured Rock; #120053 (2012)

Richard L. Gibson, Jr. and Kai Gao

Search and Discovery.com

... reservoirs. Below we first outline the model for the seismic velocities, and then present examples of inversions of laboratory velocity measurements...

Improved Methodology for Using Embedded Markov Chains to Describe Cyclical Sediments

Dennis W. Powers, Robert G. Easterling

Journal of Sedimentary Research (SEPM)

... the expected frequencies are different under the two analyses and hence the differences between observed and expected frequencies would differ. In a subsequent...

ABSTRACT: Analysis of Ichnofossil Associations in the Subsurface Bluesky Formation (Albian, Alberta, Canada), by Michael J. Ranger, S. George Pemberton; #91003 (1990).

Search and Discovery.com

Horizontal Wave Testing, by Bob Hardage, #40502 (2010).

Search and Discovery.com

Faunas of Tidal Current and Wave-Dominated Continental Shelves and Their Use in the Recognition of Storm Deposits

John B. Wilson

CSPG Special Publications

... zones that are associated with the sand sheet facies are: furrows, sand ribbons, large and small sand waves, small sand waves alone, rippled sands...

Stratigraphic Predictions of Continental Margins for the U.S. Navy

James P. Syvitski, Lincoln Pratson, Damian O'Grady

Special Publications of SEPM

... acoustically at different frequencies To The principal inputs required by ECHO are profiles of bulk den sity and mean grain size provided by SEDFLUX...

Brittleness and Geomechanical Properties Estimation Using Wireline and Seismic Data in the Duvernay Shale Basin, Canada

Carmen C. Dumitrescu

Unconventional Resources Technology Conference (URTEC)

... seismic data with frequencies of only 60 Hz, where the whole interval shows in a single trough. The vertical and lateral variations of the elastic...

Predation on Modern and Fossil Brachiopods: Assessing Chemical Defenses and Palatability

Carrie L. Tyler, Lindsey R. Leighton, Sandra J. Carlson, John Warren Huntley, Michał Kowalewski

PALAIOS

... frequency (sum of trace frequencies divided by the number of trace frequencies reported); SD 5 standard deviation; Min 5 the lowest trace frequency reported...