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The AAPG/Datapages Combined Publications Database
Showing 17,675 Results. Searched 195,689 documents.
Gas Hydrates: Part III: Rock Physics Hydrate Experiments
Lasse Amundsen, Martin Landrø
GEO ExPro Magazine
... emphasis on a recent lab experiment performed in China. Seismic Attenuation Like the presence of free gas, the presence of gas hydrate affects seismic...
2012
Stop Treating Diffractions as Noise Use them for Imaging of Fractures and Karst; #120057 (2012)
Mark Grasmueck, Tijmen Jan Moser, and Michael A. Pelissier
Search and Discovery.com
...Stop Treating Diffractions as Noise Use them for Imaging of Fractures and Karst; #120057 (2012) Mark Grasmueck, Tijmen Jan Moser, and Michael...
2012
Diving wave tomography: Velocity modelling using first arrival traveltime
Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu
Geological Society of Malaysia (GSM)
... particularly when seismic data has poor signal-to-noise ratio (SNR) with complex geologic settings where no clear reflector is present. Considering...
2022
Use of SEASAT-Derived Free-Air Gravity to Interpret the Crustal Structure of Southeast Asia
M. T. Angelich
Indonesian Petroleum Association
... is processed in frequency space. It is common in such processing to apply a high frequency attenuation filter to improve the signal-to-noise ratio. Haxby...
1986
Comparing Seismic Resolution and Signal and Noise Quality between Dense Point-Receiver and Conventional Data, Bakken Formation, North Dakota; #41160 (2013)
Niranjan Banik, Antoun Salama, Adam Koesoemadinata, George El-Kaseeh, Mark Egan, and Alfonso Gonzalez
Search and Discovery.com
...Comparing Seismic Resolution and Signal and Noise Quality between Dense Point-Receiver and Conventional Data, Bakken Formation, North Dakota; #41160...
2013
Broadband Least-Squares Wave-Equation Migration
Shaoping Lu, Andrew Long, Alejandro Valenciano, Nizar Chemingui
Petroleum Exploration Society of Australia (PESA)
... implementation combines the one-way extrapolator with fast linear inversion solvers into an efficient migration inversion system. Application to the 2D...
2018
Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)
Dali Zhang, Michael P. Lamoureux, Gary F. Margrave
Search and Discovery.com
... – Volume 21. Fig. 1 True and computed Q-factor (left) and phase velocity (right) for data with 1.0%, 1.5% and 2.5% noise for the standard linear solid...
2014
Multivariate Pattern Recognition and Classification Methods: Chapter 4
John H. Doveton
AAPG Special Volumes
...) developed a blocking algorithm that allowed the stipulation of the length of a filter window and a noise-level cutoff (Figure 3). Lanning and Johnson...
1994
Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data
Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen
GCAGS Journal
... coverage as much as 10 km with reciprocity is shown in a rose diagram (Fig. 4). After the preprocessing sequences—noise attenuation, designature...
2013
Identifying Re-Stimulation Effectiveness by Utilizing Microseismic Attributes
M. Preiksaitis, A. Baig, S. Bowman-Young, T. Urbancic
Unconventional Resources Technology Conference (URTEC)
...low frequency plateau, corner frequency, and attenuation factor Q in frequency domain (Viegas, et al. 2013) for all events with a sufficient signal-to-no...
2016
Microseismic Event Location Using Multiple Arrivals: Demonstration of Uncertainty Reduction
Zhishuai Zhang, James W. Rector, Michael J. Nava
Unconventional Resources Technology Conference (URTEC)
..., and low signal to noise ratio. The developed method can effectively improve the accuracy of microseismic event location and proposes a better acquisition...
2015
An approach to reduce exploration risk using spectral decomposition, prestack inversion, and seismic facies classification
Carlos Jesus, Wagner Moreira Lupinacci, Patricia Takayama, Joana Almeida, and Danilo Jotta Ariza Ferreira
AAPG Bulletin
... al., 2005), and attenuation estimation and correction (Lupinacci and Oliveira, 2015), therefore helping to decrease uncertainties encountered during...
2020
Case Study: Can We Use Angle Gathers to Detect Fracture Distribution of Carbonate Reservoir in Rama Field?
Zha Chaoyang, Sun Pengxiao, Shen Xiaohong, Wen Shuliang, Tang Donglin, Heng Liqun
Indonesian Petroleum Association
... intercept and gradient from a linear fit of P-wave reflection amplitude to the sine square of the angleof-incidence, which contains implied information...
2013
Physical Processes and Fine-grained Sediment Dynamics, Coast of Surinam, South America
John T. Wells, James M. Coleman
Journal of Sedimentary Research (SEPM)
... on a falling or rising tide. Redeposition of mud may occur near time of high tide. The strong attenuation of shallow-water waves by these muds provides...
1981
Abstract: 3D Coil Shooting Survey on Tulip Field: Data Processing Overview Planning, Challenges and Opportunities (Geophysics Poster 18)
Michelle Tham, Michele Buia, Riccardo Vercesi, Swee Leng Ng, Andreas Tyasbudi Waluyo, Suyang Chen
Geological Society of Malaysia (GSM)
... extremely low amplitude or near invisible target reflections, very low signal-to-noise ratio (S/N), poor imaging and poor illumination of the reservoirs...
2011
Abstracts: A New f-p Domain Weighting Function in Minimum Weighted Norm Interpolation of Seismic Data; #90173 (2015)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... (rather than the noise events), a weighting function is employed as a constraint. Such algorithms are usually referred to as Minimum Weighted Norm...
2015
Deep compressed learning for 3D seismic inversion
Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo
International Meeting for Applied Geoscience and Energy (IMAGE)
... that small noise variations may alter the solution significantly. The solution of 3D seismic inversion problems using deep learning (DL) is an emerging field...
2023
Abstract: New Approach to Finite-Difference Memory Variables by Using Lagrangian Mechanics; #90187 (2014)
Wubing Deng and Igor Morozov
Search and Discovery.com
..., Saskatchewan [email protected] Summary In numerous algorithms for finite-difference modeling of seismic waves, the effects of attenuation...
2014
Deep neural networks for 1D impedance inversion
Vladimir Puzyrev, Anton Egorov, Anastasia Pirogova, Chris Elders, Claus Otto
Petroleum Exploration Society of Australia (PESA)
... to obtain. Hence, we also study the impact of extending the training data by adding random noise to the modelled examples. We observe that enlarging...
2019
GEO 2006, 7th Middle East Geosciences Conference and Exhibition, March 27-29, 2006, Manama, Bahrain, #90051 (2006)
Search and Discovery.com
2006
Three-Dimensional Seismic Analysis in the Characterization of a Giant Carbonate Field, Onshore Abu Dhabi, United Arab Emirates
Peter Melville, Omar Al Jeelani, Saeed Al Menhali, Jürgen Grötsch
AAPG Special Volumes
... attenuation was also used to reduce the random noise not removed by the stack process.FIGURE 8. A 3-D seismic section from the crest to the flank...
2004
Relating Fractures in the Eastern Greater Green River Basin to Oil and Gas Fields: Integrating Field Measurements, Linear Features, and Digital Geologic Data
Cheryl Jaworowski, Robert Simon
Wyoming Geological Association
... on the enhancement or attenuation of linear features (Figure 2B–E). Use of an appropriate solar azimuth and elevation highlights gravity and magnetic...
1995
Accurate Pore Size Measurement Via NMR On Unconventionals
Draga Veselinovic, Michael Dick, Derrick Green
Unconventional Resources Technology Conference (URTEC)
... for linear spaced CPMG data to be decimated into a much lower number of pulses prior to further processing into distributions and maps. Because...
2019
Sequential vertical gas charge into multilayered sequences controlled by central conduits
M. Foschi, J. A. Cartwright, and C. W. MacMinn
AAPG Bulletin
...-related acoustic changes are observed but they are uncorrelated with the shape of the AAs. Amp. = amplitude; Att. & PD = attenuation...
2018
Abstract: Surface-consistent Matching Filter for Time-lapse Processing; #90174 (2014)
Mahdi H. Almutlaq and Gary F. Margrave
Search and Discovery.com
..., in particular that of Rickett and Lumley (2001) who discuss the details of the cross-equalization process that reduces the nonrepeatable noise caused...
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