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The AAPG/Datapages Combined Publications Database

Showing 178 Results. Searched 188,452 documents.

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Ascending

On The Possible Causes of Continental Drift

A. E. Scheidegger

CSPG Bulletin

... to indicate that the drift is to a degree random. Accordingly, a random walk model with autocorrelation would best fit the postulated values. This idea had been...

1958

ABSTRACT: Spatial Scales and Distribution of Hydrocarbon Seeps near Coal Oil Point, California; #90013 (2003)

Libe Washburn, Phaedon Kyriakidis, Eun-Hye Yoo, Jordan F. Clark

Search and Discovery.com

... seepage near Coal Oil Point. Spatial analysis and objective mapping techniques reveal patchy distributions of high flux regions. Spatial autocorrelation...

2003

ABSTRACT Reservoir Average Porosity Uncertainty Assessment with Limited Well Data, #90104 (2010)

Shang Zhucheng , Bruce", Alfred Dicman, Caldwell Don

Search and Discovery.com

... average  porosity, but the continuous log samples are not random and independent. Techniques like autocorrelation or vertical variogram may be then used...

2010

Abstract: Virtual Sensors in Seismic Acquisition; #90254 (2016)

Ibrahim Alhukail, Luc Ikelle

Search and Discovery.com

... is essentially based on the second-order statistics (i.e., covariance cross-correlation, and autocorrelation). We can use information from higher-order statistics...

2016

Codes and Ciphers: Decoding Natures Disorder: PART I

Dirk-Jan Van Manen, Johan O. A. Robertsson, Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... autocorrelation (apart from the central peak) as well as mutual cross-correlation properties. The individual source wavefields can then be obtained from...

2016

Seismic Modeling of Reservoir Heterogeneity Scales: An Application on Gas Hydrate Reservoirs

Search and Discovery.com

... a von Karman style autocorrelation function and a bimodal probability density function. P- and S-wave side scattering, wave mode conversion...

2013

Fourier and Autocorrelation Analysis of Estuarine Tidal Rhythmites, Lower Breathitt Formation (Pennsylvanian), Eastern Kentucky, USA

Ronald L. Martino, Dewey D. Sanderson

Journal of Sedimentary Research (SEPM)

...Fourier and Autocorrelation Analysis of Estuarine Tidal Rhythmites, Lower Breathitt Formation (Pennsylvanian), Eastern Kentucky, USA Ronald L...

1993

Abstracts: Impedance Inversion of Phase Corrected Data- A Case Study; #90173 (2015)

Somanath Misra and Satinder Chopra

Search and Discovery.com

... is crucial to an effective and accurate deconvolution. Autocorrelation of the seismic trace is an estimator of the autocorrelation of the wavelet. Since...

2015

ABSTRACT: VARIABILITY IN BIOLOGICAL PROXIES FOR UNDERSTANDING PALEOENVIRONMENTAL CHANGE AT PTARMIGAN LAKE, ALASKA; #90114 (2010)

Mary L. Carson, Caleb Schiff, and Darrell S. Kaufman

Search and Discovery.com

...). In this interval, OM is correlated with January temperature (r=0.42, p=0.038 (adjusted for autocorrelation)), October temperature (r=0.38, p=0.023), October...

2010

Abstract: Effects Of Different Map Interpolation Techniques On The Twt Surface Map; #90315 (2017)

Apourv Pandey, Khiroj Padi, Rajesh Pandey, A.S. Venkatesh

Search and Discovery.com

... of cells at locations that lack sampled points. It is based on the principle of spatial autocorrelation or spatial dependence, which measures degree...

2017

Correlation and Regression Analysis: Part 6. Geological Methods

T. C. Coburn

AAPG Special Volumes

... more than two variables. Cross correlation and autocorrelation are important to the analysis of repeated patterns observed in time and space...

1992

Bed-Thickness Structure of Multi-Sourced Ramp Turbidites: Devonian Brallier Formation, Central Appalachian Basin

Carl N. Drummond

Journal of Sedimentary Research (SEPM)

... processes, wherein initiation of turbidite formation was largely independent of rates of sediment accumulation along shelf margins. Autocorrelation...

1999

A New Method for Handling the Nugget Effect in Kriging

K. Krivoruchko, A. Gribov, J. M. Ver Hoef

AAPG Special Volumes

..., environmental sciences, agriculture, and other disciplines. It operationally and theoretically depends on models of spatial autocorrelation, which can...

2006

Near-Shore Ripples: Some Hydraulic Relationships

A. S. Trenhaile

Journal of Sedimentary Research (SEPM)

... of hydraulic parameters. Although stepwise regression and simple correlation procedures were employed, the effects of autocorrelation and multicollinearity casts...

1973

Abstracts: Prewhitening with Matrices; #90173 (2015)

C. Robert Pinnegar

Search and Discovery.com

... normal equations (4) where and denote the entries of and , and denotes the lag of the autocorrelation of , (5) The usual way of including...

2015

High Resolution Characterization of Reservoir Heterogeneity with Cross-well Seismic Data … A Feasibility Study, #41591 (2015).

Brad Bonnell, Chuck Hurich, Rudi Meyer

Search and Discovery.com

... the autocorrelation of a sliding window of seismic data to the autocorrelation of the von Karman model (Hurich, 1996). The von Karman model is defined...

2015

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... implies that the autocorrelation of the seismic trace is equal to the auto-correlation of the wavelet while the assumption that the wavelet is minimum...

1980

Mineral Resource Estimation and Statistical Exploration

F. P. Agterberg

CSPG Special Publications

.... Initially, the first four values of Figures 13A-D were converted to autocorrelation coefficients and plotted on semilogarithmic paper. Although...

1980

The Geophysicists' Bane: Multiple Suppression on the North West Shelf

C. R. T. Ramsden, M. R. Hobson, R. Cooper

Petroleum Exploration Society of Australia (PESA)

...-receiver wavelet, and long-period (to 300 msecs) multiples. A predictive deconvolution operator is designed based on an autocorrelation function...

1988

Investigating the Effect of Salinity on Counter-Current Two-Phase Flow Regimes in Annuli

Benjamin Wu, Mahshid Firouzi, Ayrton S. Ribeiro, Thomas E. Rufford, Brian Towler

Unconventional Resources Technology Conference (URTEC)

... (autocorrelation, power spectral density, Shannon entropy and permutation entropy) and high-speed image analysis were applied to characterize the two-phase...

2019

Multiscale (nano to mm) Porosity in the Eagle Ford Shale: Changes as a Function of Maturity

Lawrence M. Anovitz, David R. Cole, Alexander M. Swift, Julia Sheets, Harold W. Elston, Susan A. Welch, Steve J. Chipera, Ken C. Littrell, David F. Mildner, Matthew Wasbrough

Unconventional Resources Technology Conference (URTEC)

... developed an autocorrelation approach based on this kind of imaging and have coupled it with X-ray CT imagery as part of this study (see below). While...

2014

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