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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 1,206 Results. Searched 189,249 documents.

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POCS Method for Seismic Data Reconstruction of Irregularly Sampled Data

Elwyn J. Galloway

Search and Discovery.com

... is the fourier transform operator, T k is a threshold operator, and B is a band-limiting operator. The threshold operator acts to remove any points below...

Unknown

POCS Method for Seismic Data Reconstruction of Irregularly Sampled Data

Elwyn J. Galloway

Search and Discovery.com

... is the fourier transform operator, T k is a threshold operator, and B is a band-limiting operator. The threshold operator acts to remove any points below...

Unknown

Abstract: Making FX Interpolation More Robust by Spectrum-guided Reconstruction; #90171 (2013)

Mostafa Naghizadeh and Mauricio Sacchi

Search and Discovery.com

... is a combination of a Fourier reconstruction method (Sacchi and Liu, 2004) and f-x interpolation (Spitz, 1991). MSAR can be summarized as follows: 1) The low...

2013

Abstracts: Accurate Declipping Hybrid Algorithm for Ground Penetrating Radar Data; #90173 (2015)

Akshay Gulati and R. J. Ferguson

Search and Discovery.com

... combination of Kaiser Bessel Non uniform fast Fourier transform (NFFT) and Projection on Convex Set (POCS) to restore clippings. This algorithm is tested...

2015

Abstract: Time-Frequency Polarization Analysis and Filtering; #90211 (2015)

Robert Pinnegar

Search and Discovery.com

...Abstract: Time-Frequency Polarization Analysis and Filtering; #90211 (2015) Robert Pinnegar Datapages/Search and Discovery Article #90211 CSPGĀ© 2015...

2015

Abstract: Characterizing Spatial Deformation Patterns in a Laramide Rocky Mountain Basin; #90301 (2017)

Cody W. Bomberger, Brianna Berg, Jenica Andersen, Michael H. Hofmann

Search and Discovery.com

... that are important to hydrocarbon exploration. Using techniques from Fourier analysis, expanded into two dimensions, we identify characteristic scales of structural...

2017

Roughness of Limestone and Quartzite Pebbles by the Modified Fourier Method

Eliza Czarnecka, J. E. Gillott

Journal of Sedimentary Research (SEPM)

... be detected and analyzed quantitatively by the modified Fourier procedure. This sensitive method of analysis of planar sections of particles is combined...

1980

An Exact Method for Characterization of Grain Shape

Robert Ehrlich, Bernhard Weinberg

Journal of Sedimentary Research (SEPM)

... as precisely as needed by Fourier series expansion of the radius about the center of mass utilizing coordinates of peripheral points. Empirical results...

1970

Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging Condition; #90171 (2013)

Mark Ng

Search and Discovery.com

... such coarse wavefield extrapolation depth steps are employed. Specifically, I incorporate a simple split-step Fourier statics correction term...

2013

Origin of Patterns of Quartz Sand Types on the Southeastern United States Continental Shelf and Implications on Contemporary Shelf Sedimentation--Fourier Grain Shape Analysis

P. Jeffrey Brown , Robert Ehrlich, Donald J. Colquhoun

Journal of Sedimentary Research (SEPM)

...--Fourier Grain Shape Analysis P. Jeffrey Brown , Robert Ehrlich, Donald J. Colquhoun 1980 Vol. 50 No. 4. (December), Quartz sands in the fine sand range...

1980

Abstracts: Gabor Multipliers for Seismic Modeling and Wavefield Propagators; #90173 (2015)

Michael P. Lamoureux, Gary F. Margrave, and Peter C. Gibson

Search and Discovery.com

... by Gabor multipliers and generalized frame operators. These numerical algorithms are based on a localized version of the Fourier transform and share many...

2015

Target-Oriented Parameters for Curvature Attributes Computation; #42146 (2017)

Lee Hunt, Bahaa Beshry, Satinder Chopra, Cole Webster

Search and Discovery.com

... along horizontal wells. One of the methods of computing seismic volumetric curvature attribute involves Fourier filtering, and has gained widespread...

2017

New Techniques for Stratigraphic Analysis and Correlation--Fourier Grain Shape Analysis Louisiana Offshore Pliocene

John V. Mrakovich, Robert Ehrlich, Bernhard Weinberg

Journal of Sedimentary Research (SEPM)

...New Techniques for Stratigraphic Analysis and Correlation--Fourier Grain Shape Analysis Louisiana Offshore Pliocene John V. Mrakovich, Robert Ehrlich...

1976

Abstract: Inversion Approach to Calculate Instantaneous Frequency; #90174 (2014)

Jiajun Han and Mirko van der Baan

Search and Discovery.com

..., and other three different frequency components between 1.3s and 1.7s. We compare the instantaneous spectrum analysis with the Short-time Fourier...

2014

Abstract: 5D Interpolation of Seismic Data with Combination of MWNI and POCs Algorithm; #90187 (2014)

Jianhua Pan, Gerry Schlosser, Elvis Floreani, and Robert Tilson

Search and Discovery.com

.... Each iteration consists of a 4D Fourier transformation of the data, an application of a threshold to the transformed data removing low amplitudes...

2014

Shape difference of mud clasts depending on depositional facies: application of newly modified elliptic Fourier analysis to hybrid event beds

Sojiro Fukuda, Hajime Naruse

Journal of Sedimentary Research (SEPM)

...Shape difference of mud clasts depending on depositional facies: application of newly modified elliptic Fourier analysis to hybrid event beds Sojiro...

2020

ABSTRACT: Microanalyses of organic matter in coals and gas shales: A Review

Zhongsheng Li, Colin R. Ward, Neil Sherwood, Peter Fredericks

The Society for Organic Petrology (TSOP)

..., Rintoul, L., Ward, C.R., 2007. Application of attenuated total reflectance micro-Fourier transform infra-red (ATR-FTIR) analysis to the study of coal...

2012

A Preliminary Study of the Relationship Between Test Morphology and Bathymetry in Recent Bolivina Albatrossi Cushman, Northwestern Gulf of Mexico

Anthony C. Gary

GCAGS Transactions

... Anthony C. Gary 1985 Vol. 35 (1985), An automated video digitizer and closed-form Fourier series analysis are used in this study to quantify benthic...

1985

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N/A

Utilizing Variably Integrated Spectral Frequency to Extract Entire Fluvial Systems

Pongthep Thongsang, Mirza Naseer Ahmad

Indonesian Petroleum Association

.... Although it is not an absolute values as Fourier transform but it measures similarity between a mother wavelet and a seismic signal (relative frequency...

2013

Migration Amplitude Recovery using Curvelets

Peyman P. Moghaddam

Search and Discovery.com

... the action of Fourier integral operators. They stated that under some condition a curvelet maps to another curvelet under the action of Fourier Integral...

Unknown

ABSTRACT: Examples of Enhanced Spectral Processing in Direct Hydrocarbon Detection; #90007 (2002)

Sun, Shengjie, John P. Castagna, Robert W. Siegfried

Search and Discovery.com

... eliminates the windowing problem in Fourier spectral analysis and has very high resolution in time and frequency. Synthetic studies show...

Unknown

Migration Amplitude Recovery using Curvelets

Peyman P. Moghaddam

Search and Discovery.com

... the action of Fourier integral operators. They stated that under some condition a curvelet maps to another curvelet under the action of Fourier Integral...

Unknown

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