Magnetic Spectrum of the San Kampaeng Geothermal Area, Northern Thailand

Somsri Sertsrivanit, Charn Tantisukrit, Surachai Praserdvigai

Geological Society of Malaysia (GSM)

... with a data point number of 2® via Fast Fourier Transform (FFT). We used the FFT computer program which was written by Sertsrivanit (1983) in FORTRAN IV...

Multicomponent seismic data vector reconstruction via quaternionic matrix factorization

Yonghai Fu, Jianjun Gao, Wenbo Sun, Yandong Wang, Fan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...) into the frequency domain via Quaternion Fourier Transform, abbreviated as  QFT (Ell and Sangwine., 2007) and denote it as Q( f , x, y) , f...

Current Uses of Computers by Exploration Geologists

J. M. Forgotson, Jr. , C. F. Iglehart

AAPG Bulletin

...., Jr., 1960, Review and classification of quantitative mapping techniques: Am. Assoc. Petroleum Geologists Bull., v. 44, p. 83-100. Forgotson, James M...

Deep learning approach for denoising and resolution enhancement of poststack seismic data

Ruslan Malikov, Tatyana Yusubova, Izat Shahsenov

International Meeting for Applied Geoscience and Energy (IMAGE)

... these challenges, researchers have developed a variety of data enhancement algorithms. Traditional methods based on mathematical models often struggle...

Modeling of Sandstone Ngrayong Formation Using Digital Image Analysis

Annisa Rachmi Trahwiwit Widijana, Fourier Dzar Eljabbar, Almira Anissofira, Fatkhan, Handoyo

Indonesian Petroleum Association

...Modeling of Sandstone Ngrayong Formation Using Digital Image Analysis Annisa Rachmi Trahwiwit Widijana, Fourier Dzar Eljabbar, Almira Anissofira...

Advanced Techniques to Increase Production From Horizontal Wells and Reservoirs

Tom Arnold, Li Gao, Yongchun Tang

Oklahoma City Geological Society

... has it taken 129 years to reach the same level? The first question is much easier to answer than the second! Fourier Transform Infrared Spectroscopy...

Abstract: Effect of Mega Shear Fractures / Strike Slip Faults on Entrapment Mechanism in Sulaiman Fold Belt, Pakistan; #90139 (2012)

Moin Raza Khan, M. Amir Bhatti, Abid H. Baitu, and M. Zubair Sarwar

Search and Discovery.com

... movement provided by wrench tectonics related to transform fault zone at western terminus of Indian Plate and southward movement of Sulaiman Fold Belt...

A Preliminary Study of the Relationship Between Test Morphology and Bathymetry in Recent Bolivina Albatrossi Cushman, Northwestern Gulf of Mexico

Anthony C. Gary

GCAGS Transactions

... Anthony C. Gary 1985 Vol. 35 (1985), An automated video digitizer and closed-form Fourier series analysis are used in this study to quantify benthic...

Coherence Attribute Applications on Seismic Data in Various Guises

Satinder Chopra, Kurt Marfurt

Unconventional Resources Technology Conference (URTEC)

... the mathematical operation of Hilbert transform. Such a calculation of the input seismic data yields somewhat higher amplitudes of the frequencies in the bandwidth...

A Data-Driven Method for Processing and Analysis of Gas Chromatography-Mass Spectrometry (GC-MS) Signals in Differentiation of Oil Samples, #42401 (2019).

Le Lu, Andrew Bishop, Tianxing Wang, Rosemarie Bisquera, Yongchun Tang,

Search and Discovery.com

... with the application of a continuous wavelet transform to the total signal. Compound assignment is performed via supervised classification of the mass...

Stratigraphic well correlations for 3-D static modeling of carbonate reservoirs

Jean R. F. Borgomano, Francois Fournier, Sophie Viseur, Lex Rijkels

AAPG Bulletin

...). Nonstationary mathematical methods (Prokophi and Barthelmes, 1996) such as wavelet analysis or Fourier transforms are valid for the analysis...

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

..., Migration by Fourier transform: Geophysics, v. 43, p. 23-48. Stolt, R.H. and A.K. Benson, 1986, Seismic Migration: Theory and Practice...

The Developing Role of Analysis in the Design of Floating Production Systems

D. B. Melver, D. Cash

Indonesian Petroleum Association

..., in that period there have been few really fundamental advances in the mathematical representation of the physical environment. Wave theories predate...

Geologic Use of the Computer

Daniel F. Merriam

Wyoming Geological Association

... grade, etc., (2) stratigraphic depth, and (3) and (4) geographic posiion. Fourier series can be considered a type of mathematical trend analysis which...

Preservation of Neuropteris ovata in roof shale and in fluvial crevasse-splay facies (Late Pennsylvanian, Sydney Coalfield, Canada). Part I: An infrared-based chemometric model

José A. D'Angelo, Erwin L. Zodrow

PALAIOS

..., respectively. Fourier transform infrared spectroscopy methods are used to quantify functional groups, and the derived data are chemometrically evaluated...

Cycles in Lake Beds of the Triassic Sanford Sub-Basin of North Carolina

Lisa N. HU, Daniel A. Textoris

Special Publications of SEPM

... as indicated by time series analyses using a modified Cooley-Tukey Fast Fourier Transform of gamma-ray logs from the three wells. The Butler well has strong...

Insights from the Automated Extraction of Surfaces from the Bunda 3D Seismic Survey

J. K. Dirstein, T. Rudge, R. Li, A. J. Stanley

Petroleum Exploration Society of Australia (PESA)

..., inverse distance weighting; geostatistics, fast fourier transform, discrete cosine transform (transforms in general); wavelets; Gaussian decomposition...

Application of high-resolution reflection seismology to eastern Kansas cyclothems

Ralph W. Knapp

Kansas Geological Society

... Hz. Resolution is improved fivefold with the high-frequency bandwidth. Figure 2. The Scaling Property of Fourier Transform Theory: reducing the time...

Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

Search and Discovery.com

..., the hat (^) over a variable indicates its temporal Fourier transform, ˆ ˆ  s  x, z ,   is a model of the source wavefield for source s propagated...

Variations in Water Content in Opal-A and Opal-CT from Geyser Discharge Aprons

Rachel Day, Brian Jones

Journal of Sedimentary Research (SEPM)

... with this diagenetic transition. Electron microprobe (EMP) and micro–Fourier transform infrared (FTIR) analyses of opal-A and opal-CT collected from geyser discharge...

Introduction to Fractals

Roy E. Plotnick

Special Publications of SEPM

.... Finally, as with binary data, lacunarity can be used to identify changes of scale within quan- titative sequences. Plotnick et al. (in review) used...

A finite-element method to compute the seismic response in non-isothermal poroelastic media

Juan E. Santos, Gabriela B. Savioli, Jos M. Carcione, Jing Ba

International Meeting for Applied Geoscience and Energy (IMAGE)

... characteristics to the fast and slow P waves of poroelasticity, respectively (Carcione et al., 2019b). The mathematical models were formulated by Lord...

ABSTRACT: A Review of Applications of Artificial Intelligence for Predictive Analysis in Petrophysics - Practical Example Using Symbolic Regression; #90115 (2010)

Olivier Malinur

Search and Discovery.com

...ABSTRACT: A Review of Applications of Artificial Intelligence for Predictive Analysis in Petrophysics - Practical Example Using Symbolic Regression...

Abstract: Wave-Equation Migration: Two Approaches, by K. Larner, L. Hatton; #90976 (1976).

Search and Discovery.com

Abstract: Wave-Equation Migration--Two Approaches, by K. Larner, L. Hatton; #90968 (1977).

Search and Discovery.com