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Showing 560 Results. Searched 200,357 documents.
Regularization by robust denoising for iterative simultaneous source separation
Breno Bahia, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... these better deal with outliers, as the examples of vector-median filters (Huo et al., 2012) and robust methods based on Radon transforms (Ibrahim...
2022
Radiometric Maps of the Permian Basin: Surface Uranium and Potassium Activity Derived from Nure Progrm
Nicholas E. Pingitore, Jr., G. R. Keller, James S. Schmidt
West Texas Geological Society
...., and A. Mogro-Campero, 1978, Mapping of integrated radon emanation for detection of long-distance migration of gas within the earth: techniques and principles...
1990
Data processing workflow for reflections from cement-formation interface in ultrasonic pitch-catch measurement in cased hole
Shaopeng Shi, Hua Wang, Meng Li, Aihua Tao
International Meeting for Applied Geoscience and Energy (IMAGE)
..., such as frequencywavenumber filtering (f-k) (Hornby, 1989), median filtering (Song and Toksoz, 2009), and Radon transform (Sacchi and Ulrych, 1995; de Hoop et al., 2009), can...
2022
Poisson binomial-based random undersampling scheme for near-surface compressive sensing
Sayan Mukherjee, Yunyue Elita
International Meeting for Applied Geoscience and Energy (IMAGE)
... reconstruction. Fourier transform (Abma and Kabir, 2006; Zwartjes and Sacchi, 2007), Radon transform (Trad et al., 2003), curvelet transform (Cand...
2022
Improved Subsurface Imaging and Interpretability Through Broadband Reprocessing of Legacy Seismic Data: Examples from North West Shelf Australia
Stephen Malajczuk, Rajesh Saklani, Dean Clark, David Eastwell
Petroleum Exploration Society of Australia (PESA)
... of demultiple methods were employed prior to migration. The first method was high resolution Radon demultiple. With an accurate velocity model the Radon...
2016
Learnings from the Gawler Craton airborne survey quality control
Matthew Hutchens
Petroleum Exploration Society of Australia (PESA)
... values are also affected by the presence of varying levels of atmospheric radon. The two main causes of the large variation in calculated equivalent...
2019
Explainable AI: Can neural networks recognize first arrivals after wave separation?
Yanwen Wei, Zhenyu Zhu, Jicai Ding, Yichuan Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... primary and multiple waves in CMP data (D. J. Verschuur, 2013). The fk filtering and generalized Radon transform based on domain transformations...
2024
Integrated Seismic Attributes Analysis of Naturally Fractured Basement Reservoir: An Approach to Define Sweet Spot for Optimum Well Location and Trajectory
Fithra Harris Darmawan, Trisakti Kurniawan, Azli B Abu Bakar, Tan Han Kee, Nur Hafizah Bt Mangsor-Mansor, Wahyudin B. Nasifi, Randy Condronegoro, Andri Syafriya, Lee Chung Shen, Joe Dominguez
Indonesian Petroleum Association
... and crossline directions. Thus, the fault/fracture image can be improved by using windowed Radon transform. The radon transform computes projections of an image...
2017
Pre-Stack Inversion to Seismic Rock Type Predictability (SRT) Case Study: Gabus Zone 3B in Belanak Field
Baskoro Arif Kurniawan, Maria Fransisca Meirita, Aguslianto Efendy Harahap, Haniva Navilova, Willy Gunary Abadi
Indonesian Petroleum Association
.... Parabolic radon transform were chosen for this correction by running the noise suppression (noise pass 1) and multiple elimination (noise pass 2...
2019
WELL WATER URANIUM RECONNAISSANCE, SOUTHWESTERN SASKATCHEWAN
W. Dyck, R. A. Campbell, and S. H. Whitaker
Saskatchewan Geological Society
.... Figure 1. Uranium Concentrations in well waters. Figure 2. Radon concentrations in well waters. Regionally the Rn highs are more closely...
1977
Seismic Imaging Through Gas Cloud Using Borehole Seismic Walkaway Technique; A Case Example From Offshore Malaysia
Teck Kean Lim, Gunawan Taslim, Amy Mawarni M Yusoff
Indonesian Petroleum Association
... for this walkaway geometry. Generalised Radon Transform (Miller et al, 1987) was used to provide an offset regularized 2D image below the tool setting...
2008
Application of General Surface Multiple Prediction, a True Azimuth 3D Surface Related Multiple Elimination Technique, in the Deep Water Area of the Eastern Makassar Strait
Andreas T. Waluyo, Frank Büker
Indonesian Petroleum Association
... of the project demonstrated that a conventional processing flow of 2D SRME, Radon and Residual Demultiple was insufficient to tackle the multiples that were...
2009
Filling in the Blanks
Paul Sandvik, Ed Hager, Muhammad Adnan, Daniel Sturko, Polarcus
GEO ExPro Magazine
... deconvolution and radon methods. The denoise sequence could be made substantially more extensive than normal, addressing a number of specific noise types...
2019
An Integrated Approach to 3D Seismic Acquisition Feasibility Studies: Review of Present Techniques and Future Trends
Claude Bordenave, Frederic Merlet, Lotfi Ben Brahim, Nyoman Swatika
Indonesian Petroleum Association
.... The effect of frequency - wave number (FK) filtering is shown. The corresponding FK spectra help in comparing the results. Figure 6. Example of Radon de...
1998
Research and application of diffraction imaging based on the full-azimuth angle migration
Shengtao Zang, Xingrong Xu, Zhe Yang, Yanxiang Wang, Jiaqing Sun
International Meeting for Applied Geoscience and Energy (IMAGE)
... for the separation of reflections and diffractions in Radon domain, and the diffraction imaging can be obtained using the separated diffractions (Klokov et.al., 2012...
2024
Imaging of multiwell and multifiber walkaway DAS-VSP datasets in a CCUS demonstration project onshore Japan
Yuji Yamada, Shotaro Nakayama, Takuji Mouri, Manish Lal Khaitan, Philip Armstrong, Olga Podgornova
International Meeting for Applied Geoscience and Energy (IMAGE)
... the fiber length with a sparse linear Radon transform. This step transformed the measured fiber strain to velocity (assuming short gauge length compared...
2024
History, Tectonics, and Hydrocarbons: The Need for a New Paradigm in the Diablo Platform - Delaware Basin Region
Richard J. Erdlac, Jr., Douglas B. Swift, James J. Reeves
West Texas Geological Society
... (Hentz, 1989), and possibly forms the northern boundary of the radon-poor portion of the Central Basin Platform (DiChristina, 1993). Thermal maturation...
1994
True-Azimuth 3D Surface-Related Multiple Elimination
Roald van Borselen, Rob Hegge, Peter Aaron, Simon Barnes, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... operators to correct for offset deconvolution and Radon demultiple, and the 3D convolutions mentioned above. cannot subsequently cope with multiples...
2009
Simultaneous Sources: The Inaugural Full-Field, Marine Seismic Case History from Australia (Paper A2)
I. Moore, D. Monk, L. Hansen, C. Beasley
Geological Society of Malaysia (GSM)
...-domain, linear Radon transform that effectively separates each trace into estimated components for each source, together with a (small) residual...
2012
Seismic Data Preconditioning for Improved Reservoir Characterization (Inversion and Fracture Analysis); #41347 (2014)
Darren Schmidt, Alicia Veronesi, Franck Delbecq, and Jeff Durand
Search and Discovery.com
... statics. Coherent noise was reduced by using a highresolution Radon transform to attenuate linear and parabolic multiple energy, while random noise...
2014
Integrating Seismic Elastic Properties and Discontinuity Analysis into Reservoir Modeling and Simulation A Case History from the Gulf of Mexico Shelf, #41820 (2016).
Randal Utech, Dan Shan, Ellya Saudale, Dianna Shelander, Kirk Rodgers, Ahmed Ammar, Tim Wilkinson, Rick Clark
Search and Discovery.com
... reserved. tt t Reservoir Simulation Seismic Conditioning and Well Ties • Spatially consistent velocity analysis • Parabolic radon transform...
2016
New Data Reveals Sub-Salt Levantine Basin
Øystein Lie, Per Helge Semb
GEO ExPro Magazine
... SRME, high resolution Radon demultiple, multiple diffraction attenuation, f-x deconvolution, Q-compensation, time-variant filtering, Kirchhoff PSTM...
2009
Solutions for Monitoring Gas
Paul Wood
GEO ExPro Magazine
... techniques, such as groundwater and air quality monitoring and monitoring of greenhouse gas emissions and radon gas. In their previous work, Simon...
2013
Croatia: A New Oil Province at the Heart of Europe
Neil Hodgson, Howard Nicholls, Anna Marszalek, Peter Browning-Stamp, Steve Maddox, Spectrum
GEO ExPro Magazine
... Related Multiple Elimination (SRME) and Hiresolution Radon are also far more effective than technologies available in the 1970s and 80s. In addition...
2013
A Nigerian Renaissance: Renewed interest in Africa's largest oil producer
John Balch, Matt Lamont, Polarcus, DownUnder GeoSolutions
GEO ExPro Magazine
... building; three de-noise steps including 3D true-azimuth SRME and high resolution Radon de-multiple were utilised. Reflection tomography was then used...
2014