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The AAPG/Datapages Combined Publications Database

Showing 178 Results. Searched 188,614 documents.

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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...


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

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


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

Shang Zhucheng , Bruce", Alfred Dicman, Caldwell Don

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


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

Ibrahim Alhukail, Luc Ikelle

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


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...


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

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


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...


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

Somanath Misra and Satinder Chopra

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



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

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...). 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...


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

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

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


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...


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...


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...


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...


Abstracts: Prewhitening with Matrices; #90173 (2015)

C. Robert Pinnegar

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


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

Brad Bonnell, Chuck Hurich, Rudi Meyer

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... 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...


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...


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...


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...


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...


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...


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