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The AAPG/Datapages Combined Publications Database
Showing 773 Results. Searched 200,691 documents.
Analysis of Electromagnetic Depth Sounding Responses Over a Layered Earth: Investigating Oil & Gas Seeps in the Petroleum Provinces
Shastri L. Nimmagadda, Andrew Ochan
Petroleum Exploration Society of Australia (PESA)
... to the convolution sum along with the filter weights is given as: n (4) │ hz │ = convolution sum = Σ Ck . f (Yk) k=0 Where Ck = the filter coefficient...
2016
A New Technique of Thin Bed Reservoir Evaluation Using Image Log Data
Dwiky Perdana Susanto, Gilang Ariestya, Haris Kurniawan Hidayat
Indonesian Petroleum Association
... synthetic logs, de-convolution was performed for each high-resolution synthetic log to be compared with a standard resolution log (Figure 4). An iterative...
2015
Combined AVO and Spectral Decomposition Analyses to Characterize Gas Sand Reservoir Below Tuning Thickness Condition
Julian Saputro, Jaenudin, Alexis Badai Samudra, Enik Puji Lestari, Sugiono, Aldis Ramadhan, Yosi Hirosiadi
Indonesian Petroleum Association
... in frequency analysis, fast convolution, image process-ing, etc. Moreover, fast algorithms exist that make it possible to compute the DFT very...
2016
Deep water OBN multiple prediction from local reflectivity in the Stolt domain
Cesar Ricardez
International Meeting for Applied Geoscience and Energy (IMAGE)
... the convolution of two bandlimited signals. Its superiority can be noted in predicting complex multiples necessitating a broad aperture for prediction...
2024
Poor Man's Synthetic Seismogram
Andrew Nelson
Petroleum Exploration Society of Australia (PESA)
...: velocity log • • To select all the data below the active cell, use ctrl+shift+down arrow keys Convolution of the reflectiv ity series to be made...
1996
Numerical RTA Extended to Complex Fracture Systems: Part 1
Mathias Lia Carlsen, Curtis Hays Whitson
Unconventional Resources Technology Conference (URTEC)
..., and spatial superposition (convolution), pseudopressure and pseudotime transforms are not required. URTeC 3718584 2 Introduction RTA is used...
2022
Estimating Porosity from Determinsitic Inversion (Paper C6)
M. Sams, T. J. Focht, J. Ting
Geological Society of Malaysia (GSM)
... the likely success and limitations. Using a wavelet derived from a near angle stack of the real seismic data, we generate through convolution a synthetic...
2012
High-Resolution Deconvolution with Sparsity and Lateral Continuity Constraints
Juefu Wang
Search and Discovery.com
... where W is the convolution matrix containing the known wavelet, r is the reflectivity trace, s is the seismogram, O is a trade-off parameter which...
Unknown
High-Resolution Deconvolution with Sparsity and Lateral Continuity Constraints
Juefu Wang
Search and Discovery.com
... where W is the convolution matrix containing the known wavelet, r is the reflectivity trace, s is the seismogram, O is a trade-off parameter which...
Unknown
Abstract: Towards Using Seismic Moment Tensor Inversions to Infer Reservoir Rock Properties; #90174 (2014)
Adam M. Baig, Ted I. Urbancic, Eric von Lunen, and Jason Hendrick
Search and Discovery.com
... and Fracture Orientations A waveform from a microseismic event can be considered to be the convolution of a source and a Green’s function, describing...
2014
Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
... by convolution, and the delta function as a trace resampling. Note that there is a separate convolutional operator for every input trace and image...
2014
Abstract: Blind Surface Consistent Wavelet Estimation; #90187 (2014)
E. Bongajum, N. Kazemi, and M. D. Sacchi
Search and Discovery.com
... Sn (5) where r is a column vector representing the multichannel reflectivity in the time domain; Dim G j , and Dn j Si correspond to convolution...
2014
Abstract: Practical Implementation of SRME for Land Multiple Attenuation; #90187 (2014)
Juefu Wang and Shaowu Wang
Search and Discovery.com
... is equal to the convolution of two traces corresponding to two ray paths. The figure shows that one multiple contribution between S and R can...
2014
Interpolated fast and computational-efficient multidimensional singular spectrum analysis (I-FMSSA) for compressive simultaneous-source data processing
Rongzhi Lin, Yi Guo, Fernanda Carozzi, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... through the orthonormal basis Q: ˆ H = QQH H (5) • Convolution is adopted to accelerate the anti-diagonal averaging process. For simplicity, we assume...
2022
Pressure Transient Testing for Pattern Waterflood Design
Gardner W. Walkup Jr.
Indonesian Petroleum Association
... both transient pressure and transient rate data (convolution and deconvolution). The test string included a continuous flow meter which was placed...
1991
Deep learning-based joint inversion of time-lapse surface gravity and seismic data for monitoring of 3D CO2 plumes
Adrian Celaya, Mauricio Araya-Polo
International Meeting for Applied Geoscience and Energy (IMAGE)
...t to match the reservoir geometry via linear interpolation. Then the 2D features are converted into a 3D volume using a pointwise convolution, wher...
2024
Acoustic target-level full-waveform inversion: Applied to ocean-bottom seismic data
Carlos A. N. da Costa, João M. de Araújo, D.J. Verschuur, Aydin Shoja
International Meeting for Applied Geoscience and Energy (IMAGE)
... along a depth level just above the target zone (da Costa et al., 2019). In this method, the upgoing wavefield is modeled locally by a convolution-type...
2024
Replacing Decline Curve Analysis
Randy Hazlett, Umer Farooq, D. Krishna Babu
Unconventional Resources Technology Conference (URTEC)
... transient solution involved convolution and analytic inversion of the resulting Laplace transform. Farooq et al. (2020) extracted the two-dimensional...
2020
Rock Thin-section Analysis and Mineral Detection Utilizing Deep Learning Approach
Fatick Nath, Sarker Asish, Shaon Sutradhar, Zhiyang Li, Nazmul Shahadat, Happy R. Debi, S M Shamsul Hoque
Unconventional Resources Technology Conference (URTEC)
... is followed by a 2x2 convolution that reduces the number of feature channels by half. This is then concatenated with the corresponding cropped feature...
2023
Methodology for Enhancing and Evaluating Geologic Effects of Time Series Models: A Case of Ground Response in Santa Clara Valley, California, #41097 (2012)
Olusola Samuel-Ojo, Lorne Olfman, Linda A. Reinen, Arjuna Flenner, David D. Oglesby, Gareth J. Funning
Search and Discovery.com
... of the input data and replaces it with the filtered value. Filters employ a convolution tool. Convolution is the operation of replacing each element...
2012
Deep Convolutional Neural Networks for Seismic Salt-Body Delineation; #70360 (2018)
Haibin Di, Zhen Wang, Ghassan AlRegib
Search and Discovery.com
... centered about each of the labelled seeds. Finally, these images are resampled to be 32 by 32 to facilitate the convolution and pooling operations used...
2018
Hierarchical machine learning workflow for conditional and multiscale deep-water reservoir modeling
Wen Pan, Honggeun Jo, Javier E. Santos, Carlos Torres-Verdín, and Michael J. Pyrcz
AAPG Bulletin
... interpretation of conditioning data and available analogue information (e.g., well log correlation and outcrop analogue). The distribution of aspect...
2022
Remote Sensing of Geomorphology and Facies Patterns on a Modern Carbonate Ramp (Arabian Gulf, Dubai, U.A.E.)
Samuel J. Purkis, Bernhard M. Riegl, Serge Andrefouet
Journal of Sedimentary Research (SEPM)
...) Gulf: Marine Geology, v. 129, p. 237–269. Wherry, R.J., 1931, A new formula for predicting the shrinkage of the coefficient of multiple correlation...
2005
Analysis and modeling of intermediate-scale reservoir heterogeneity based on a fluvial point-bar outcrop analog, Williams Fork Formation, Piceance Basin, Colorado
Matthew J. Pranter, Amanda I. Ellison, Rex D. Cole, Penny E. Patterson
AAPG Bulletin
... Hettinger and Kirschbaum, 2002, 2003; see Figure 1 for the well location). The correlation line at the top of the composite section is based on thickness...
2007
Constraints on Riverine Valley Incision and the Response to Sea-Level Change Based on Fluid Mechanics
Julian Thorne
Special Publications of SEPM
... convolution operator which operates on the input flow at the source g(t) to give the flow at the downstream observer: The extreme sensitivity...
1994