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The AAPG/Datapages Combined Publications Database
Showing 233 Results. Searched 195,452 documents.
Mitigating the effects of guided waves in OBN data for acoustic FWI using data reconstruction: A data example from the Yggdrasil area
M. A. H. Zuberi, E. Cho, T. Seher, R. Myklebust
International Meeting for Applied Geoscience and Energy (IMAGE)
...n filters were then applied to the observed data according to equation (3), and band limited to 6 Hz. The reconstructed data filtered back to 6 Hz are sho...
2023
A Simple Guide to Seismic Inversion
Ashley Francis
GEO ExPro Magazine
... Elastic Impedance (Band Limited) 2.0 2.0 2.5 1.5 Two-way time (sec) 1.5 Sparse Spike Elastic Impedance (Low Freq. Model) 2.5 2.5...
2013
Delineation of Rift-Related Miocene Fluvial Sands in the Gulf of Thailand Using Seismic Inversion Techniques
Bagus Priyanto, Mirza Naseer Ahmad, Philip Rowell
Indonesian Petroleum Association
... of correlation values of original logs were used after applying the high cut filter of 70 Hz in order to compare it with seismically derived band...
2013
Thin Layer Imaging by Wavelet Transform Enhancement
Randy Condronegoro, Woro Sutjiningsih, Herlan Setiadi, Khairul Ummah, Dythia Prayudhatama
Indonesian Petroleum Association
... with the band limited source (deficient in high frequencies), sudden changes in frequency amplitude can occur. We attempted to recreate some missing higher...
2013
Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China
Gang Yu, Yusheng Zhang, Ximing Wang, Xing Liang, Uwe Strecker, Maggie Smith
Unconventional Resources Technology Conference (URTEC)
... zero to kiloHertz and band limited seismic data that often has a low cut of around 6-8 Hz and also serves as the a priori geological model...
2016
High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study
Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc
Indonesian Petroleum Association
... wavenumber components. However, conventional seismic data acquired at shallow tow depths are usually band limited particularly at the very low...
2014
Time Frequency Gathers: An Optimal Spectral Decomposition Analysis Approach
Badsha Basu Roy
Indonesian Petroleum Association
... for generating time frequency output is CWT. Short temporal band limited wavelets are used for the wavelet transform using a Gabor-Morlet filter. In the study...
2016
Simultaneous Inversion Analysis using Rock Physics for Carbonate Reservoir Characterization in "Omicron" Field Kujung I Formation, North East Java Basin
Laila Annafi, Tomy Miarso
Indonesian Petroleum Association
... is affecting P wave and S wave velocity that is directly corresponding towards sonic well logs. Seismic data is band-limited which means it has a certain range...
2019
Prospect Identification Using AVO Inversion and Lithology Prediction
Brad Bailey, Frazer Barclay, Robert Nesbit, Andrea Paxton
Petroleum Exploration Society of Australia (PESA)
... is not simply added to between gas sand and all other lithologies DHI in the form of a flat spot (Figure Sa). The gas relat ive or band-limited inversion...
2010
Seismic Inversion
Michel Kemper
Petroleum Exploration Society of Australia (PESA)
... is the process of converting seismic reflectivity data to rock pro perty information, ranging f rom band -limited acoustic impedance (simplest...
2010
It's the Fluids That Matter: Solutions to Reservoir Property Prediction
Andrew Long, Folke Engelmark
Petroleum Exploration Society of Australia (PESA)
... and band-limited convent ional seismic data. The The physica l properties of pore fluid s and velocities have been Lit hology, Fluid (oil and/ dependence...
2012
Abstract: The Application of The Nearly Optimal Sponge Boundary Conditions for Seismic Wave Propagation in Poroelastic Media; #90171 (2013)
Jingyi Chen and Ralph Phillip Bording
Search and Discovery.com
... function used in this paper is a band-limited Ricker wavelet, which is distributed over a small region of the grid. The source frequency we select is 25Hz...
2013
ABSTRACT: Rejuvenation of a Mature Field Through Application of a Unique Frequency Enhancement Technology; #90007 (2002)
Marcus L. Countiss
Search and Discovery.com
...” to be convolved with the band-limited embedded wavelet through the process of polynomial multiplication (one sided convolution). The new method used...
Unknown
Abstract: The Application of The Nearly Optimal Sponge Boundary Conditions for Seismic Wave Propagation in Poroelastic Media; #90171 (2013)
Jingyi Chen and Ralph Phillip Bording
Search and Discovery.com
... function used in this paper is a band-limited Ricker wavelet, which is distributed over a small region of the grid. The source frequency we select is 25Hz...
2013
Abstract: Fast and Accurate Impedance Inversion by Well-Log Calibration; #90171 (2013)
Igor B. Morozov and Jinfeng Ma
Search and Discovery.com
... in Figure 1 performed by using the H-R STRATA package: a) model-based and b) band-limited recursive. Note that the low-AI gas sand drapes the high...
2013
Abstracts: Revisiting Homomorphic Wavelet Estimation and Phase Unwrapping; #90173 (2015)
Roberto H. Herrera and Mirko van der Baan
Search and Discovery.com
... in (1) is transformed into additions in the cepstral domain: ˆ ˆ ˆ (4) s (t ) ≈ w(t ) + r (t ) . ˆ ˆ It is expected that for short band limited sources...
2015
Abstract: Supervirtual S-wave Refraction Interferometry for Converted Wave Statics and Near-Surface S-wave Velocity Model Building; #90224 (2015)
Kristof De Meersman and Yoones Vaezi
Search and Discovery.com
... are, however, very band limited with many side lobes, mostly due to the harsh preconditioning. The supervirtual gathers are then used to perform...
2015
High Performance Computation by Graphics Processor Unit Technology for Geophysical Seismic Signal Processing, #40727 (2011)
Sunjay Sunjay
Search and Discovery.com
.... 1882-1893. Sandhya Devi, K.R., and H. Schwab, 2009, High-resolution seismic signals from band-limited data using scaling laws of wavelet transforms...
2011
Quantifying Bypassed Pay Through 4-D Post-Stack Inversion, #40799 (2011)
Robert Woock, Sean Boerner, James Gamble
Search and Discovery.com
... in the upper left image. Here the well tract is visible but it is replaced in the upper right image by a band limited P-impedance tract that blends...
2011
Impact of Broadband Seismic on Quantitative Interpretation Workflows; #41450 (2014)
Eivind Dhelie, Cyrille Reiser, Tim Bird, Euan Anderson
Search and Discovery.com
... corresponding synthetic responses. The seismic synthetic responses were then band-limited/“inverted” into relative impedance responses. As observed...
2014
Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China; #41829 (2016)
Gang Yu, Yusheng Zhang, Uwe Strecker, Maggie Smith
Search and Discovery.com
... in the data. Low Frequency Model The low frequency model bridges the low frequency gap between well data; it has frequencies from zero to kilo-Hertz and band...
2016
Improving Depth Prediction Accuracy of Quantified Drilling Hazards
W. Scott Leaney, William H. Borland
Geological Society of Malaysia (GSM)
... because arbitrary low and high frequencies can be added to the solution without altering the quality of fit to the band limited data. The simplest way...
1996
Integration of geology, rock physics, logs, and prestack seismic data for reservoir porosity estimation
Abdulaziz M. AlMuhaidib, Mrinal K. Sen, M. Nafi Toksoz
AAPG Bulletin
... between the well (high frequency) and seismic impedance (band limited).Figure 13. Cross-validation of seismic impedance and log impedance within 20-ms two...
2012
Seismic Stratigraphic and Quantitative Interpretation of Leonardian Reefal Carbonates, Eastern Shelf of the Midland Basin: Insight Into Sea Level Effects, Geomorphology and Associated Reservoir Quality; #10909 (2017)
Abidin B. Caf, John D. Pigott
Search and Discovery.com
... Interpretation & Discussion • Conclusions Presenter’s notes: First, a band-limited inversion is computed from the migrated seismic data using a recursive...
2017
Geostatistical Integration of Crosswell Data for Carbonate Reservoir Modeling, Mcelroy Field, Texas
William M. Bashore, Robert T. Langan, Karla E. Tucker, Paul J. Griffith
Special Publications of SEPM
... are relatively insensitive to minor phase misestimation, and no further dephasing was applied. In this regard, each trace is assumed to be a band-limited...
1995