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The AAPG/Datapages Combined Publications Database

Showing 22,206 Results. Searched 190,140 documents.

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Abstract: Hoadley Microseismic Experiment: Reprocessing and Characterization of Long-Duration Tremor Signals; #90224 (2015)

Enrico Caffagni and David W. Eaton

Search and Discovery.com

...., 1994). The Hoadley barrier represents a southwest-to-northeast trending marine barrier bar system that marks the northern limit of continental...

2015

Improved Methodology for Using Embedded Markov Chains to Describe Cyclical Sediments

Dennis W. Powers, Robert G. Easterling

Journal of Sedimentary Research (SEPM)

... the normalized differences between observed and expected frequencies, as we discuss below, one can identify the sources of the nonhomogeneity. Another aid...

1982

Integrated Quantitative Stratigraphy of the Cenomanian-Turonian Bridge Creek Limestone Member Using Evolutive Harmonic Analysis and Stratigraphic Modeling

Stephen R. Meyers , Bradley B. Sageman , Linda A. Hinnov

Journal of Sedimentary Research (SEPM)

... periodicities representing precession, obliquity, and eccentricity to the dominant spatial frequencies in the datasets was possible because of a high...

2001

Semi-Analytical Approach of Optimum Vibration Frequency Determination That Gives Maximum Improvement on Reservoir Rock Porosity

Mursalim Mardin, Tutuka Ariadji

Indonesian Petroleum Association

... also forecast other optimum vibration frequencies at higher frequency ranges; that is, optimum or dominant frequencies could be predicted in every...

2005

Tintinnids in Shelf Sediments from Alaska, Oregon, and California: ABSTRACT

R. J. Echols, G. A. Fowler

AAPG Bulletin

... Ocean and Bering Sea, whereas Stenosemella ventricosa is dominant in the sublittoral region off northern California and Oregon. Species <63...

1972

Abstract: A Generic Procedure for Noise Suppression in Microseismic Data; #90187 (2014)

Yessika Blunda and Kit Chambers

Search and Discovery.com

... ringing as well as stationary and transient correlated noise. The procedure consists of two steps; firstly, large errant frequencies are suppressed using...

2014

Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study

Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani

Unconventional Resources Technology Conference (URTEC)

... if sourcereceiver distances are small. The tested locations and dominant source frequencies of the synthetic seismograms used for analysis resemble the expected...

2017

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

... reflector at a specific depth. In most cases the difference in acoustic velocity between rocks is the dominant factor in determining the reflection...

1992

Synthetic Seismograms and Their Uses

Abilene Geological Society

... depth. In most cases the difference in acoustic velocity between rocks is the dominant factor in determining the reflection coefficient and the density...

1993

Revealing a Shaly (Tight) Sand Reservoir's Distribution by Applying an Untapped Sub-Frequency Combination Method: A Case Study in the West Jambi II Block, South Sumatra Basin

Indra Luthfiana, C. Maya Resha Tuhar, Endi Erfanto, Randy Condronegoro, Hendra Niko Saputra, Abghia Dini Fanzuri, Yan Wijaya, Totok Parafianto

Indonesian Petroleum Association

... compression in Early Miocene. The continuation of a transgressive phase generated marine shale, siltstone and sandstone. The G4 Level, as part of the interested...

2018

Sediment-Foraminiferal Relations within Inner Sublittoral Zone off Coast of Washington: ABSTRACT

Ronald J. Echols, Sarah S. Barnes, Robert A. Harman

AAPG Bulletin

... of the Columbia River and Grays Harbor where dominantly arenaceous assemblages occur nearshore. The dominant arenaceous species generally is Eggerella...

1969

Detection of Astronomical Cycles in the Stratigraphic Record by Frequency Modulation (Fm) Analysis

Linda A. Hinnov , Jeffrey Park

Journal of Sedimentary Research (SEPM)

... spectrum model included for comparison exhibits only two dominant frequencies over this window length (0.97 My) at 1/21.5 ky and 1/17.1 ky (the Jurassic...

1998

Characterisation of focused gas hydrate accumulations from the Pegasus Basin, New Zealand, using high-resolution and conventional seismic data

Andrew R. Gorman, Patrick T. Fletcher, Dylan Baker, Douglas R.A Fraser, Gareth J. Crutchley, Stuart A. Henrys

Petroleum Exploration Society of Australia (PESA)

... sources used. We present preliminary results from an academic high-resolution generator-injector (GI) airgun seismic survey, undertaken in mid 2015...

2018

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

... are the dominant effects of Q at low frequencies. The sensitivity analysis reveals that compared with the Q fields, the velocity fields dominate the data misfit...

2016

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... the overburden layer (overburden effect). Notice the amplification of frequencies other than the dominant frequency of the source wavelet (ricker wavelet...

2013

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... the overburden layer (overburden effect). Notice the amplification of frequencies other than the dominant frequency of the source wavelet (ricker wavelet...

2013

Abstract: High-Resolution 3D Imaging of Quaternary Channelization: Offshore San Luis Pass, Texas

Dallas Dunlap

GCAGS Transactions

...) The proliferation of high-quality marine seismic data as well as advanced interpretation and computing workflows have been key drivers for the dramatic gains...

2014

Angola Kwanza Basin: Sub-Salt Plays of the Ultra-Deep Water

Gregor Duval, Jaswinder Mann, Lauren Houston, CGG

GEO ExPro Magazine

... salt-related structures. Colour blend 3D visualisation of 2.5 Hz, 8 Hz and 15 Hz dominant frequencies, highlighting Upper Broadband seismic data has...

2013

Abstract: Enhancing Stratigraphic Features by Spectral Decomposition, Case Studies from Saudi Arabia; #90319 (2018)

Schuman Wu

Search and Discovery.com

...) extract frequency horizons to make RGB-blended maps of three frequency horizons with low, intermediate, and high dominant frequencies to reveal...

2018

Mapping of Salt Structures in the Gulf of Mexico Using Marine CSEM

J.J. Zach, M.A. Frenkel, P. Lindhom, A.M. Ostvedt-Ghazi, A. Kumar, T. Pham

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of typically f0~0.25Hz is used in marine CSEM surveys, which naturally leads to a the occurrence of odd harmonic frequencies of the base frequency (2n+1...

2009

Drilling predation intensity and feeding preferences by Nucella (Muricidae) on limpets inferred from a dead-shell assemblage

Yurena Yanes, Carrie L. Tyler

PALAIOS

... for predation pressure. Studies that have used drill holes to estimate predation frequencies in the fossil record make several assumptions about...

2009

Abstract: Sediment-dispersal Systems of the Mexican Interior Basin: Late Cretaceous-Paleogene Source-to-Sink Analysis of Northern and Central Mexico; #90289 (2017)

Tim Lawton

Search and Discovery.com

... it was coextensive, in having a dominant volcanic-lithic component in all of its sandstones. Petrographic analysis and detrital zircon data indicate...

2017

Effective Delivery of Reservoir Compliant Seismic Data Processing; #42158 (2017)

Arash JafarGandomi, Henning Hoeber, Celine Lacombe, Vimol Souvannavong

Search and Discovery.com

... are most sensitive to the dominant seismic frequencies, a dedicated QC is required to assess the impact of demultiple on the lower frequencies...

2017

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