Stochastic Analysis of Monthly Precipitation Data in Alabama

Emmanuel E. Udoh, Nosa O. Egiebor, Kafui Nyavor

GCAGS Transactions

...) for the Mobile precipitation station with the important periodic oscillations. As might be noticed, the Fourier analysis transforms the data from the time domain...

Abstract: Maximum Entropy Acquisition Design and Optimal Interpolation; #90187 (2014)

Mauricio D. Sacchi, Mafijul Islam Bhuiyan, and Nasser Kazemi

Search and Discovery.com

... s(n, m) = 1 when there is an observation and s(n, m) = 0 when the grid point is empty. It is possible to show that the Discrete Fourier Transform (DFT...

Recognition of Sandstone Depositional Environment: A Grain-Shape Approach, With Example from North Padre Island: ABSTRACT

Jim Mazzullo, Donald Sims

AAPG Bulletin

... 1983 1468 1468 67 9. (September) The shapes of 8,000 fine quartz sand grains from Malaquite Beach, North Padre Island, were analyzed with the Fourier...

Abstract: Surface-consistent Matching Filter for Time-lapse Processing; #90174 (2014)

Mahdi H. Almutlaq and Gary F. Margrave

Search and Discovery.com

.... We compute the spectral ratio in the time domain by first designing trace-sequential, least-squares match filters and then Fourier transforming them...

Attenuating non-compressional energy on vertical motion sensors using rotational data

Hassan Masoomzadeh, Fons ten Kroode, Tim Seher, Mohammad Akbar Hosain Zuberi, Alexander Kritski, Harald Westerdahl, Åsmund Sjøen Pedersen, Mark Thompson, Nick Bernitsas, Phil Behn, Philip Baltz

International Meeting for Applied Geoscience and Energy (IMAGE)

... the source coordinates, in which an OBN survey is typically well sampled. Replacing Fourier transforms with respect to receiver coordinate...

Spectral Balancing of Seismic Data Using Spectral Decomposition; #41976 (2017)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... attribute calculation. Another traditional use of time-varying Fourier transforms is spectral balancing. Trace by trace time-varying spectral balancing...

Seismic evidence for seal and reservoir in the Late Cretaceous Ceduna Delta, Great Australian Bight

Ben Tredrea, Phillip Horton

Petroleum Exploration Society of Australia (PESA)

... the remnant depositional fabric of this interval. Another complicating factor is that the window utilised in discrete Fourier transforms allows contribution...

Creating Singularity Order Attribute of Seismic Signals Using Continuous Wavelet Transform (CWT) for Stratigraphic Interpretation Tools

A.M. Ustad, M.S. Jaya, F.J. Herrman

Indonesian Petroleum Association

..., and a is a dimensionless scale variable (Mallat, 1997). Figure 2 show examples of CWT for different well and seismic data. Multiscale wavelet transforms...

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

...; once forward in space and once backwards. The two predictions are summed, the inverse Fourier transforms applied, and the windows merged back...

Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... operates via Fourier transforms in the frequency wavenumber (f-k) Fig. 2. Schematic depth section (top) and zero offset time section (bottom) for a dipping...

A Vertical Pattern of Variation in the St. Peter Sandstone--Fourier Grain Shape Analysis

James M. Mazzullo, Robert Ehrlich

Journal of Sedimentary Research (SEPM)

...A Vertical Pattern of Variation in the St. Peter Sandstone--Fourier Grain Shape Analysis James M. Mazzullo, Robert Ehrlich 1980 Vol. 50 No. 1. (March...

Application of Seismic Data to Lithology and Hydrocarbon Identification in East China

Qian Shao-Xin, Liu Wen-Lin

Circum Pacific Council Publications

... Oligocene S unit since 1975. Between 1975 and 1981, eight wells were drilled, but all were dry holes. In 1981, a seismic-reflection stratigraphic...

Detecting Permeability Gradients in Sandstone Complexes--Quantifying the Effect of Diagenesis on Fabric

Robert Ehrlich, Mark C. Bowers, Virginia L. Riggert, Christopher M. Prince

AAPG Special Volumes

...) optically resolved such circuits using filtered Fourier transforms of large, high-resolution images; Riggert (1994) demonstrated the existence of these flow...

Geologic Use of the Computer

Daniel F. Merriam

Wyoming Geological Association

... of regional and residual components of geologic structure in Kansas: Kansas Geol. Survey Sp. Dist. Publ. 11, 27 p. FOURIER ANALYSIS Preston, F. W...

ABSTRACT: Noise Removal and Registration of Remote Sensing Aircraft Data for Energy and Mineral Resource Studies, by Susanne Hummer-Miller; #91022 (1989)

Search and Discovery.com

A 3-D ground-penetrating radar and wavelet transform analysis of the morphology of shoreface deposits in the Upper Cretaceous Ferron Sandstone Member, Utah

Keumsuk Lee, Robert Szerbiak, George A. McMechan, Namsoon Hwang

AAPG Bulletin

... indicated by the scale of the morphology can be an indirect indicator of unit correlation and permeability paths. Addison, P. S., 2002, The illustrated...

Reservoir prediction technology based on tuning spectral decomposition

Wang Qingzhen, Wang Jianhua, Zheng Ying

International Meeting for Applied Geoscience and Energy (IMAGE)

... short-time Fourier transform, Gabor transform, wavelet transform, S-transform, generalized S-transform, etc.(Marfurt and Kirlin, 2001); Quadratic time...

Understanding Attributes and Their Use in the Application of Neural Analysis … Case Histories Both Conventional and Unconventional, #41473 (2014).

Deborah Sacrey, Rocky Roden

Search and Discovery.com

... transforms seismic reflection data into rock and fluid properties.  The objective of seismic inversion is to convert reflectivity data (interface properties...

Analysis of Vertical Cyclicity Patterns in a Submarine Fan Sequence

Tracey Chester

Pacific Section SEPM

... bed number of the Cache Creek Section on both a logarithmic(9b) and linear scale(9a). Spectral analysis (Fourier analysis) transforms this information...

Detection of shallow sedimentary structure of Yigong Lake in Tibetan Plateau using distributed acoustic sensing

Jian Zhou, Jizhong Yang, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

...). As an alternative, distributed acoustic sensing (DAS) technology transforms fiber-optic cables into dense seismic measurement arrays that use...

Enhanced Wellbore Placement Accuracy Using Geomagnetic In-Field Referencing and Multi-Station Correction

Stefan Maus, Matthew Herzl, Shawn DeVerse

Unconventional Resources Technology Conference (URTEC)

... aeromagnetic surveys, which have been employed for over 50 years to map geology and tectonic features. Earlier IFR methods used Fast Fourier Transforms (Dean...

Identification and Prediction of the High Heterogeneous Channel Sand in Southern Turgay Basin; #10515 (2013)

Yueying Hong, Hongmei Wang, Wenyuan Tian, and Aling Mo

Search and Discovery.com

... close to authentic stratigraphic unit. Interpolation shall follow the principle that the time window of each single layer shall be more than half...

Adaptive UMAP based multiple-frequency attribute blending and its application on hydrocarbon reservoir characterization

Zezhou Zhang, Naihao Liu, Yang Yang, Zhiguo Wang, Rongchang Liu, Jinghuai Gao

International Meeting for Applied Geoscience and Energy (IMAGE)

... the average Fourier spectrum of seismic data to obtain its dominant frequency fm . (3) Select multi-frequency components. We first calculate...

SPATIAL AND TEMPORAL SIGNIFICANCE OF PROCESS ICHNOLOGY DATA FROM SILTY-MUDSTONE BEDS OF INCLINED HETEROLITHIC STRATIFICATION, LOWER CRETACEOUS MCMURRAY FORMATION, NE ALBERTA, CANADA

ERIC R. TIMMER, MURRAY K. GINGRAS, JOHN-PAUL ZONNEVELD

PALAIOS

... from gamma ray log Fourier transforms periods and matched these to El Nino/Southern Oscillation 544 E.R. TIMMER ET AL. PA L A I O S FIG. 9.—Dynamic...

From 2D to 4D Wheeler Diagrams; #50774 (2012)

Farrukh Qayyum, Paul de Groot, Nanne Hemstra

Search and Discovery.com

.... This is laborious process in which information in X and Z (depth) is transformed to X and T (geologic time). In recent years automated Wheeler transforms...