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The AAPG/Datapages Combined Publications Database
Showing 5,187 Results. Searched 200,293 documents.
Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration
Tim Geerits, Stefan Schimschal, Anna Swiatek
International Meeting for Applied Geoscience and Energy (IMAGE)
... ( s ) domain cylinder q functions (or excitation functions), C kn' , can be expressed as an inverse Fourier integral with respect the vertical...
2022
Automatic well-log baseline correction via deep learning for rapid screening of potential CO2 storage sites
Misael M. Morales, Carlos Torres-Verdín, Michael Pyrcz, Murray Christie, Vladimir Rabinovich
International Meeting for Applied Geoscience and Energy (IMAGE)
... of 𝑿 is given by 𝓕𝑿 = . 𝑿𝑒 (4) The Hilbert transform of 𝑿 is expressed as (5) 𝓗 𝑿 = ℱ 𝑿 (ℱ 𝑿 2𝑈) , where ℱ is the inverse Fourier transform...
2024
Finite-difference wavefield propagation using superstepping
T. Nemeth, K. Nihei, A. Loddoch, A. Sekar, K. Bube, J. Washbourne, L. Decker, S Kaplan, Ch. Wu, A. Shabelansky, O. Cristea, Z. Yin
International Meeting for Applied Geoscience and Energy (IMAGE)
... the system states continuously from current time to up to a given future time. These methods, such as the Fourier Neural Operators [11], [12] use...
2024
A simultaneous wavefield separation and denoising approach for vertical seismic profile using geometric mode decomposition
Salman Abbasi, Jubran Akram, Andres Chavarria, Vikram Jayaram, Iftekhar Alam, Dmitry Borisov, Yanwei Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... include FK filtering, radon transform and median filtering. The presence of noise impedes effective separation of these methods and affects the fidelity...
2024
Revealing a Shaly (Tight) Sand Reservoir's Distribution by Applying an Untapped Sub-Frequency Combination Method: A Case Study in the West Jambi II Block, South Sumatra Basin
Indra Luthfiana, C. Maya Resha Tuhar, Endi Erfanto, Randy Condronegoro, Hendra Niko Saputra, Abghia Dini Fanzuri, Yan Wijaya, Totok Parafianto
Indonesian Petroleum Association
... the overall frequency content of seismic data to be variant with time. Hence, according to Chui, (1992). The Windowed Short Time Fourier Transform...
2018
High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration
Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen
AAPG Bulletin
... from early phase-shift plus interpolation migration (Gazdag and Sguazzero, 1984), split-step Fourier migration (Stoffa et al., 1990), and Fourier finite...
2024
Research on reservoir prediction based on compressed sensing and inversion theory
Qing Zhou, Jianli Wang, Qian Yu, Heng Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the frequency domain. Finally, perform inverse Fourier transform to obtain the seismic data after low-frequency compensation: s F 1[ L( R) H...
2022
Assessment on the Serviceability of Monopod Platforms in Java Sea Due to Wave Excitation
Gde Pradnyana
Southeast Asia Petroleum Exploration Society (SEAPEX)
... using the Inverse Fast Fourier Transformation. As we will be analyzing the response of the monopod in time domain, the non-linear drag component, i.e....
1996
VSP: Lessons from Numerical Simulation
M. Suprajitno, S. A. Greenhalgh
Indonesian Petroleum Association
... by an inverse Fourier transformation. In generating offset-VSP seismograms, an additional integration over the wavenumber is required before the inverse...
1985
Seismic erratic noise suppression based on Laplacian-scaled mixture prior
Haotian Xu, Weiwei Xu, Wenchao Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... and extrapolation using a high-resolution discrete Fourier transform: IEEE Transactions on Signal Processing, 46, 31–38, doi: https://doi.org...
2022
High-resolution imaging using Gaussian beam point-spread-function deconvolution
Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan
International Meeting for Applied Geoscience and Energy (IMAGE)
..., h) = √ 3 2 σ2 ( 2πσ) Psf (x, h), (4) where Fh is the multidimensional Fourier transform for −1 subsurface offsets, and Fh is the corresponding...
2023
The deblending processing of multi-well 3D DAS-VSP data in the Middle East
Fei Li, Gang Yu, Haibo Liu, Jiawen Song, Yanbin Zhang, Yuanzhong Chen, Tiankui Yin, Jianxin Han, Qingfeng Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... sources data; Abba et al. (2008) obtained highquality separation results using POCS algorithm in Fourier transform domain; Lin et al. (2009) proposed...
2023
Advances in seismic acquisition and processing technologies steered the success of exploration and development in Kuwait
Adel El-Emam
International Meeting for Applied Geoscience and Energy (IMAGE)
... workflow based on Matching Pursuit Fourier Interpolation (MPFI) (Schonewille et al., 2013). This solution provided better data with regular offset...
2024
Seismological Methods and the Search for Geothermal Resources
David Butler, Paul Larry Brown
Rocky Mountain Association of Geologists
... all sets of earthquakes for which magnitudes have been measured follow an inverse straight-line relationship between the log of the number...
1977
The Determination of Highly Fractured Zone by HVSR Method and its Application on EOR Project Development
Felix Andrean, Muhammad Kukuh Al-Rasyid, Dhara Adhnandya Kumara, Agus Riyanto
Indonesian Petroleum Association
... source software (http://www.geopsy.org). Fast Fourier Transform (FFT) is applied to convert the time domain signal into frequency domain. Additionally...
2018
Calibration of Continuous Wavelet Transform (CWT) Fracture Closure Detection Using Laboratory Hydraulic Fracturing Experiments
Mohamed A. Gabry, Zhi Ye, Amr Ramadan, Ahmad Ghassemi, Mohamed Y. Soliman
Unconventional Resources Technology Conference (URTEC)
... the CWT fracture closure detection technique. They chose Wavelet Transform (WT) as a signal processing technique to overcome these limitations of Fourier...
2025
Mineralogical, Geothermal, and Porosity Analysis of the Eagle Mills Formation, Newton County, Mississippi
Tim Palmer, David Dockery
GCAGS Transactions
.... R., M. M. Herron, and S. L. Herron, 2017, Comparison of quantitative mineral analysis by X-ray diffraction and Fourier transform infrared spectroscopy...
2018
Abstract: Trace Interpolation and Elevation Statics by Conjugate Gradients; #90172 (2014)
Marcus Wilson, Robert J. Ferguson
Search and Discovery.com
.... Method and Example An arbitrary source wavefield of n=256 traces with n temporal samples (Figure 1a) is Fourier transformed in time, and band limited...
2014
Large-scale 3D Inversion of Helicopter Electromagnetic Surveys for Oil Sands Exploration near Fort McMurray, Alberta, Canada; #41303 (2014)
Leif H. Cox, Glenn A. Wilson, Michael S. Zhdanov, Jonathan Rudd, and John Wilson
Search and Discovery.com
... and Zhdanov, 2002). For time-domain AEM, system responses and sensitivities are obtained by Fourier transform of the frequency-domain responses...
2014
Adaptive Eigenstructure Classification and Stochastic Decorrelation Filters for Coherent Interference Suppression in the Acoustic Zoom Method, #41503 (2014).
J. Guigne, S. Azad, C. Clements, A. Gogacz, W. Hunt, A. Pant, J. Stacey
Search and Discovery.com
... eigen-structure methods. The resulting algorithm is analogous to the Hough transform (in image processing) extended to patterns for geophysical re...
2014
Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media; #41564 (2015)
Arnim B. Haase, Charles P. Ursenbach
Search and Discovery.com
.... They are repeated for all frequency points desired in the output bandwidth, and then the time domain response is found by inverse Fourier transform...
2015
Migration Velocity Analysis by Migration of Velocity Spectra
Craig J. Beasley, Rolf Klotz
Southeast Asia Petroleum Exploration Society (SEAPEX)
...., 1984, Dip moveout by Fourier transform: Geophysics, 49, 741–757. Kim, Y. C., and Gonzalez, R., 1991, Migration velocity analysis with the Kirchhoff...
1992
Wave-equation based amplitude versus offset inversion in long time windows, with time-variant wavelets
Dries Gisolf, Peter R. Haffinger
International Meeting for Applied Geoscience and Energy (IMAGE)
... from AVO inversions based on the primary reflectivity model. From WEB-AVO we get directly the compressibility , which is the inverse of the bulk...
2022
Unlocking hidden potential in shallow water Gulf of Mexico legacy data for carbon capture and storage exploration
Rachel Collings, Igor Marino, Adriana Arroyo Acosta, Jack Kinkead, Hugo Medel, Trong Tang, Gabriela Suarez, Brett Sellers
International Meeting for Applied Geoscience and Energy (IMAGE)
.... For this, two types of approaches were used, one being an Anti Leakage Fourier Transform (ALFT) approach to prepare the data for Kirchhoff depth...
2024
Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)
Oluwafemi Ogunsuyi, Douglas R. Schmitt
Search and Discovery.com
... and receivers; these calculated traveltimes in combination with observed traveltimes are used to develop an inverse problem. The inverse problem is solved...
2014