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The AAPG/Datapages Combined Publications Database

Showing 17,433 Results. Searched 190,755 documents.

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Abstract: Color Correction for Gabor Deconvolution and Nonstationary Phase Rotation; #90171 (2013)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... estimation from 0.5s to 0.8s compared to the true reflectivity series, which corresponds to the low magnitude area of the Gabor spectrum shown in Figure...

2013

Abstract: Color Correction for Gabor Deconvolution and Nonstationary Phase Rotation; #90171 (2013)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... estimation from 0.5s to 0.8s compared to the true reflectivity series, which corresponds to the low magnitude area of the Gabor spectrum shown in Figure...

2013

Abstract: Estimating the Spectra of Small Events for the Purpose of Evaluating Microseismic Detection Threshholds; #90174 (2014)

N. Ackerley

Search and Discovery.com

... magnitude event which we will be able to detect?” In order to answer this question, of course, to have reliable estimates of the spectrum of typical ground...

2014

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

Nirupama Nagarajappa and Peter Cary

Search and Discovery.com

... deconvolution (Cary et al. 1993) is to attempt to whiten the amplitude spectrum and zero the phase. Due to noise and other factors, we expect that phase errors...

2015

Abstract: Recovering Low Frequencies for Impedance Inversion by Frequency Domain Deconvolution; #90224 (2015)

Sina Esmaeili and Gary Frank

Search and Discovery.com

... reflectivity. Regardless of the phase spectrum of a seismic trace, the amplitude spectrum of seismic data is similar in shape to the amplitude spectrum...

2015

Spectral Balancing of Seismic Data Using Spectral Decomposition; #41976 (2017)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... decomposition carried out using the continuous wavelet transform method. The output includes spectral magnitude, phase, and voice component volumes. 2...

2017

Microseismic Data Analysis Using Matlab 2010 for the Determination of Hydrocarbon Presence in the Field LCYŽ Ombilin Basin

Lucy W. Sari, Moh. Sarkowi, Suharno, Rahmat C. Wibowo

Indonesian Petroleum Association

... (left) and average spectrum anomaly (right) frequency of 2 Hz - 6 Hz. Figure 7 - Plot of magnitude microseismic frequency spectrum 2 - 6 Hz. Figure...

2013

Abstract: A Seismic Workstation Solution to Bakken AVO; #90174 (2014)

D. Meisinger and N. H. Kalmanovitch

Search and Discovery.com

... but it is typically below optical resolution because of phase misalignment and noise contamination. The following figure compares the amplitude spectrum...

2014

Radiometric Surveying Applied to an Evaluation of Sorrento Field, Cheyenne County, Colorado

A.V. Gallagher

Montana Geological Society

..., Reservoir Characterization Project Phase V., Colorado School of Mines, Sponsors Meeting Report, October 4, 1994. RCP, 1995, Reservoir...

1996

Gabor Deconvolution: Surface-Consistent and Iterative

Search and Discovery.com

... to obtain the Gabor magnitude G . spectrum, G Apply hyperbolic smoothing (e.g. Margrave et al., 2004) to to derive a Q-function, Qf = h ( G ) h (⋅) , where...

2013

Mini Seismic Processing System for Training and Research Purposes

Suprajitno Munadi, Bambang Triharjanto

Indonesian Petroleum Association

... can be identified. The strongest with the lowest phase velocity is the ground roll. The group with moderate magnitude and moderate phase velocity...

1993

Abstracts: Q Determination, Corner Frequency and Spectral Characteristics of Microseismicity Induced by Hydraulic Fracturing; #90173 (2015)

David W. Eaton

Search and Discovery.com

... frequency, moment magnitude, source radius and stress drop). Figure 2 shows an example of a spectrum for a S wave generated by a microseismic event...

2015

Frequency Attenuation: A Fracture Indicator

Ilyas J. Najmuddin

Houston Geological Society Bulletin

... little direct signature of fractures on a seismic section. Loss of reflection magnitude is one such indicator. Reduction of velocity of the layer...

2001

3-D Seismic Volume Visualization in Color: Part 3; #42533 (2020)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... in this article, with the application of the latter model for co-visualizing two or three different seismic attributes. H, S and V While the optical spectrum...

2020

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... of notches in the amplitude spectrum of the ghosting operator, with rapid variation in the phase spectrum occurring in the vicinity of these notches...

2015

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

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... in the amplitudes, traveltime and phase distortions observed in the seismic waves. Wu (1989) classified the scattering effects by various scale heterogeneities...

2013

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

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... in the amplitudes, traveltime and phase distortions observed in the seismic waves. Wu (1989) classified the scattering effects by various scale heterogeneities...

2013

Burial History and Kinetic Modeling for Hydrocarbon Generation, Part I: The galo Model

Monzer Makhous, Yurii Galushkin, and Nikolai Lopatin

AAPG Bulletin

... cover or in the basement, and estimates the potential hydrocarbon yield of the source rocks. Alternative methods for determining the magnitude of tectonic...

1997

Spectral Induced Polarization: A New Way for Hydrocarbon Prospect Prediction

Feisal Dirgantara

Indonesian Petroleum Association

...-gradient of the military site, with similar geology. The corresponding magnitude and phase results thus serve as control images from a hydrocarbon...

2008

Abstract: Fit for Purpose Microseismic Design; #90000 (2016)

Anca Rosca

Search and Discovery.com

... and integrated interpretation. At the other end of the spectrum, when monitoring for environmental concerns, a high magnitude threshold is sufficient...

2016

Abstract: Do You Have a Moment: the Importance of Instrumentation in Moment Magnitude Estimation; #90224 (2015)

W. Greig and N. Spriggs

Search and Discovery.com

... to a nominal criterion defined below. Estimating moment magnitude depends on imaging the flat, low frequency portion of the Brune displacement spectrum...

2015

Development of Raman Spectroscopy as a Thermal Maturity Proxy in Unconventional Resource Assessment

Grant Myers, Kelsey Kehoe, Paul Hackley

Unconventional Resources Technology Conference (URTEC)

...) at the U.S. Geological Survey (USGS) and Raman microscopy (RM) at WellDog. In semi-blind Phase I, BRo values of the initial set of 8 samples were...

2018

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