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The AAPG/Datapages Combined Publications Database
Showing 234 Results. Searched 200,357 documents.
Subsurface monitoring during tunnel excavation area using auto-correlation
Enhedelihai Nilot, Gang Fang, Yun Zhou Tan, Yanlong Niu, Heng Zhang, Yunyue Elita Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... information of underlying layers (Artman, 2006). Autocorrelation is used to retrieve the body wave reflectivity of the underlying medium, especially...
2022
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
Quantitative comparison of active and passive surface wave data obtained from distributed acoustic sensing (DAS) and three-component geophones
Koichi Hayashi, Hayato Nonaka, Peter Hubbard, Yasuhiro Yokota, Kensuke Date, Kazuhiko Masumoto, Takaaki Taira, Kenichi Soga
International Meeting for Applied Geoscience and Energy (IMAGE)
... from DAS and geophones based on a multichannel analysis of surface waves (MASW) and a spatial autocorrelation (SPAC). Dispersion curves obtained from...
2022
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
Beyond chi-squared: Additional measures of the closeness of a model to data1
Alan G. Jones
Petroleum Exploration Society of Australia (PESA)
... is the Durbin-Watson (DW) statistic (Durbin and Watson, 1950; 1951). The generalized form of the DW statistic for an autocorrelation lag of 1 is given...
2019
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
Fluvial reservoir architecture, directional heterogeneity and continuity, recognizing incised valley fills, and the case for nodal avulsion on a distributive fluvial system: Kern River field, California
D. K. Larue, J. Allen, D. Beeson, and J. Robbins
AAPG Bulletin
... for autocorrelation of stratal markers in well logs (Ginger et al., 1995). The application works as follows. First, a stratigraphic top is defined in a well. To find...
2023
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
Kinematics of Sand Avalanches Using Particle-Image Velocimetry
Michael Tischer , Marcus I. Bursik , E. Bruce Pitman
Journal of Sedimentary Research (SEPM)
..., AND BUCHHAVE, P., 1993, PIV: comparison of three autocorrelation techniques: International Society for Optical Engineering, Proceedings, v. 2052, p...
2001
Seismic Resolution in the Mahakam Delta
J. B. Beauchamp
Indonesian Petroleum Association
.... This rapid change is better illustrated by plate 7 where we have computed for different seismic arrivals at different depths the autocorrelation...
1980
Simulation and Mapping of Space-Dependent Data in Geology
Michel Dagbert
CSPG Bulletin
... autocorrelation as existing data. Also, the similarity between the control data and the neighbour simulated values is in accordance with the spatial...
1981
A Comparative Study of Wave Equation Multiple Suppression to Conventional Tau-p Deconvolution and Radon Multiple Attenuation Methods
Kriyanti Setiyono, Ken H. Matson
Indonesian Petroleum Association
... deconvolution eliminates multiples statistically, a design window has to be significantly longer than the operator length. If the autocorrelation window does...
2000
A case study of broadband processing in extremely shallow water environment of Bohai Bay
Jiangbo Huang, Xinyi Duan, Dekui Xu, Pingping Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The three autocorrelation spectra in figure 6 also show that the short period multiples are well suppressed. (4) Where ri and rj are the first and last...
2024
Abstract: Nonstationary Predictive Deconvolution; #90172 (2014)
Gary F. Margrave, Michael P. Lamoureux
Search and Discovery.com
... because it operates directly on the individual Gabor slices. We also prescribe the construction of nonstationary autocorrelation functions...
2014
Abstract: Simultaneous Multiple Source Acquisition using m-Sequences; #90187 (2014)
J. Wong
Search and Discovery.com
... an autocorrelation which is a delta function, while crosscorrelations between different members are exactly zero. Sets of real pilot signals will never be perfectly...
2014
Abstracts: The Deconvolution of Multicomponent Trace Vectors; #90173 (2015)
Xinxiang Li, Peter Cary, and Rodney Couzens
Search and Discovery.com
... by the autocorrelation of a segment of the trace. In the Fourier domain the autocorrelation of a trace is its power spectrum. Extending the discussions...
2015
Seismic-Based Volcano Identification and Characterization in HD Oilfield, Tarim Basin; #10747 (2015)
Yaonan Li, Guizhong Wang, Desheng Sun, Hongmei Zhang, Zhen Zou, Lin Yu, Sheng Cao
Search and Discovery.com
... autocorrelation analysis in the control line, it is evident that the wavelet variation due to shooting, receiving and near-surface changes is eliminated, thus...
2015
Mapping, Locating and Recovering By-Passed Hydrocarbons - Workshop Summary
Thomas Hampton, Larry Lake, Skip Pack
PTTC
..., used to determine lateral autocorrelation and permeability trends. It provides an alternative to interference tests. The method can indicate...
2000
Vaporchoc: Utilization of Steam as a New Seismic Source
P. Staron
Pacific Section of AAPG
...% deconvolution, AMCO H, TIVF. Figure 15. Flexotir 1200% and Vaporchoc 2 × 2400%. Figure 16. Autocorrelation, Flexotir and Vaporchoc. Figure 17. Flexotir 1200...
1972
Time Series Analysis II
Gerard V. Middleton
Special Publications of SEPM
... extremes. There is no theory which indicates exactly what delay should be chosen but two guiding rules have been suggested: Plot the autocorrelation...
1995
Hierarchy of Controls on Cyclic Rhythmite Deposition: Carboniferous Basins of Eastern and Mid-Continental U.S.A.
A. W. Archer
Special Publications of SEPM
... in three- and ultimately two-element rhythmites technique involves autocorrelation in which the thickness se technique involves autocorrelation...
1998