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The AAPG/Datapages Combined Publications Database

Showing 1,541 Results. Searched 200,635 documents.

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Detection of Shaly Gas Reserves using Pulsed Neutron Neutron Logging

K. Traxler

Search and Discovery.com

... determination of gas-layers within shaly sand sequences is very fast and easy; especially if combined with Fast Fourier Transformation to differentiate...

Unknown

Abstract: Analysis of the Structural Style and Fracture Distribution of the Agdagh Anticline in Southern Kurdistan, Iraq A model for fractured Carbonate Reservoirs; #90172 (2014)

Paul A. MacKay, William Matthews

Search and Discovery.com

... that extends for over 65 kilometres in the strike direction and is approximately 10 kilometres wide. The larger structure is made up of two en echelon folds...

2014

Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)

Aaron Stanton

Search and Discovery.com

... a synthetic data example in which the input data have been regularly decimated. We find several advantages to our approach when compared with Fourier...

2015

Abstract: High Resolution Quantitative Characterization of Organic Rich Mudstones using Laser Confocal Microscopy and Micro-FTffi Imaging; #90283 (2016)

T. D. Jobe, D. Jacobi, S. Csutak, S. Eichmann, W. Li

Search and Discovery.com

... characterization of mineralogy and geochemistry based on non-destructive measurements: Laser Scanning Confocal Microscopy (LSCM) and Micro-Fourier Infrared...

2016

Sources, Distribution, and Mixing of Late Pleistocene and Holocene Sands on the South Texas Continental Shelf

Jim Mazzullo, K. D. Withers

Journal of Sedimentary Research (SEPM)

..., R., 1980, Determination of relative provenance contributions in samples of quartz sand using Q-mode factor analysis of Fourier grain shape data...

1984

A Method for Reducing the Effects of Base Plate Distortion

S. A. Sorkin

Pacific Section of AAPG

...-mechanical servo-system. Whatever the cause of the non-linearity the Fourier analysis components of motion include odd and even harmonics. Symmetrical motion...

1972

Seismic Data Processing For a Crucial 2014 2D Seismic Data Acquisition Decision in S Area, South Sumatra Block, South Sumatra, Indonesia

Gerry R. Hutabarat, Danar Yudhatama, Erwin Kusumah, Yusnita Yunus, Stephen M. Scott

Indonesian Petroleum Association

... by partitioning the data within each window and then applying Fourier transformation. For each frequency, a prediction filter is calculated and applied twice...

2015

Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013)

Guangpin Li, Johnathan Linfoot, and Bruce Hobbs

Search and Discovery.com

... of frequency. Responses at any number of frequencies may be used and these are available through Fourier transformation of the earth’s impulse...

2013

Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)

Jianhua Pan

Search and Discovery.com

... ) and then after Fourier transformation of time and the horizontal space variables, the partial differential equation (1) becomes an ordinary differential...

2014

Merging Surveys with Multidimensional Interpolation; #41552 (2015)

Daniel Trad, Matt Hall, Milka Cotra

Search and Discovery.com

..., we use a five-dimensional interpolator based on Fourier reconstruction. The method consists of solving an inverse problem where the unknown...

2015

Chronology, Relative Sea-Level History and a New Sequence Stratigraphic Model For Basinal Cretaceous Facies Of Colombia

Tomas Villamil

Special Publications of SEPM

... cycles profundidades batiales en rine invasion Etayo tract terminology BUrgi sedimentaci6n cfclica BUrgi 1961 also mentioned that littoral...

1998

Aspects of Rock Physics From Laboratory and Log Data that are Important to Seismic Interpretation: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

A. R. Gregory

AAPG Special Volumes

... to avoid aliasing effects. The digitized waveforms are transformed to the frequency domain through a discrete Fourier Transform program...

1977

Interpretation of Crustal Structure from Regional Gravity Anomalies, Ouachita Mountains Area and Adjacent Gulf Coastal Plain

J. M. Kruger , G. R. Keller

AAPG Bulletin

... a two-dimensional Fourier transform-based technique (Coultrip, 1982). To enhance anomalies not associated with the dominant northwest-trending...

1986

Sources of Pleistocene and Holocene Sand for the Northeast Gulf of Mexico Shelf and the Mississippi Fan

Jim Mazzullo, Charles Bates

GCAGS Transactions

.... Schultz, D. J., 1980, The effects of hydrofluoric acid on quartz shape - Fourier grain shape analysis: Journal of Sedimentary Petrology, v. 50, pp...

1985

Field-Scale Bayesian Production Forecasting via Spectral Gaussian-Process Mixtures

Ryan Farell, J. Eric Bickel, Chandrajit Bajaj

Unconventional Resources Technology Conference (URTEC)

... production as a stochastic process driven by a mixture of Gaussian process (GP) priors expressed in a spectral random Fourier feature (RFF) basis...

2025

Origin of Shape Changes of Sand and Silt in a High-Gradient Stream System

Stephen K. Kennedy , Robert Ehrlich

Journal of Sedimentary Research (SEPM)

... basins on the west flank of the Bighorn Mountains, Wyoming. Three size fractions--fine sand, very fine sand, and coarse silt--were studied, using Fourier...

1985

Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis

Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer

Journal of Sedimentary Research (SEPM)

.... They judged their core segments to consist of 1469, 4158, and 1869 varves, respectively. Fourier analysis, in sequential 200-year windows shifted...

1991

Automated Analysis of Imbrication and Flow Direction in Alluvial Sediments Using Laser-Scan Data

R.P. Millane, M.I. Weir, G.M. Smart

Journal of Sedimentary Research (SEPM)

... in the case of the Shotover River. Peak positions were subsequently estimated by fitting a three-term Fourier series to I(d, θ) for each value of d...

2006

Taphonomy of vertebrate fossil assemblages from swampy circum-lake environments: An example from the late Eocene of Zambrana (Iberian Peninsula)

Ainara Badiola, Ana Berreteaga, Xabier Pereda-Suberbiola, Javier Elorza, Humberto Astibia, Nestor Etxebarria

PALAIOS

... of the vertebrate fossils, some preliminary spectroscopic (Fourier transform infrared spectroscopy [FT-IR], and FT-Raman spectroscopy) and gas...

2009

Exploration of an Unconventional Petroleum Resource through Extensive Core Analysis and Basin Geology Interpretation Utilising Play Element Methodology: The Lower Goldwyer Formation, Onshore Canning Basin, Western Australia

Jop van Hattum, Aaron Bond, Dariusz Jablonski, Ryan Taylor-Walshe

Australian Petroleum Production & Exploration Association (APPEA) Journal

... is well above the 100 nD threshold (Fig. 7). GeoMinÔ Fourier transform infrared spectroscopy (FTIR) analysis and powder X-ray diffraction (XRD) analysis...

2019

Selective Dolomitization By Syntaxial Overgrowth Around Detrital Dolomite Nuclei: A Case From the Jurassic of the Ligurian Briançonnais (Ligurian Alps)

Luca Martire, Carlo Bertok, Anna D'Atri, Elena Perotti, Fabrizio Piana

Journal of Sedimentary Research (SEPM)

... identification of dolomite using a Fourier Transform Infrared Spectrophotometer (FTIR): a fast method for identifying Heinrich events in IODP Site U1308...

2014

Experimental Investigation On Self-Channelized Erosive Gravity Currents

Pierre Weill, Eric Lajeunesse, Olivier Devauchelle, François Métiver, Angela Limare, Benoît Chauveau, Dominique Mouazé

Journal of Sedimentary Research (SEPM)

... the fringe pattern which is modulated by the topography. The phase modulation was then calculated with a Fourier transform. Finally, a phase-unwrapping...

2014

Assessing the Origin and Variability of Eolian Lithic Material For High-Resolution Paleoceanographic Reconstructions Off Northern Chile (23° S)

Valentina Flores-Aqueveque, Gabriel Vargas, Stephane Alfaro, Sandrine Caquineau, Jorge Valdés

Journal of Sedimentary Research (SEPM)

... sediments was quantified using Fourier transform infrared (FTIR) spectroscopy with a precision of ± 1% (Vargas et al. 2004, 2007), according...

2014

Studies of Reservoir Diagenesis, Burial History, and Petroleum Migration Using Luminescence Microscopy

Roger K. Mclimans

Special Publications of SEPM

... generation. Fourier transform infrared (FTIR) analyses of single oil inclusions have been done (see Guilhaumou et al., 1990; Rankin et al., 1990...

1991

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