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Author : Myung W. Lee
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (91 download)
Download or read book Applications of Velocity-stack Methods to Seismic Data Processing written by Myung W. Lee and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Myung W. Lee
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (246 download)
Download or read book Applications of Velocity-stack Methods to Seismic Data Processing written by Myung W. Lee and published by . This book was released on 1994 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hua-Wei Zhou
Publisher : Cambridge University Press
ISBN 13 : 1107728851
Total Pages : 509 pages
Book Rating : 4.1/5 (77 download)
Download or read book Practical Seismic Data Analysis written by Hua-Wei Zhou and published by Cambridge University Press. This book was released on 2014-01-23 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: This modern introduction to seismic data processing in both exploration and global geophysics demonstrates practical applications through real data and tutorial examples. The underlying physics and mathematics of the various seismic analysis methods are presented, giving students an appreciation of their limitations and potential for creating models of the sub-surface. Designed for a one-semester course, this textbook discusses key techniques within the context of the world's ever increasing need for petroleum and mineral resources - equipping upper undergraduate and graduate students with the tools they need for a career in industry. Examples presented throughout the text allow students to compare different methods and can be demonstrated using the instructor's software of choice. Exercises at the end of sections enable students to check their understanding and put the theory into practice and are complemented by solutions for instructors and additional case study examples online to complete the learning package.
Author : Xiwen Wang
Publisher : John Wiley & Sons
ISBN 13 : 1119052939
Total Pages : 360 pages
Book Rating : 4.1/5 (19 download)
Download or read book Relative Fidelity Processing of Seismic Data written by Xiwen Wang and published by John Wiley & Sons. This book was released on 2017-02-27 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of relative fidelity preservation processing methods and their applications within the oil and gas sector. Four key principles for wide-frequency relative fidelity preservation processing are illustrated throughout the text. Seismic broadband acquisition is the basis for relative fidelity preservation processing and the influence of seismic acquisition on data processing is also analyzed. The methods and principles of Kirchhoff integral migration, one-way wave equation migration and reverse time migration are also introduced and illustrated clearly. Current research of relative amplitude preservation migration algorithms is introduced, and the corresponding numerical results are also shown. RTM (reverse time migration) imaging methods based on GPU/CPU systems for complicated structures are represented. This includes GPU/CPU high performance calculations and its application to seismic exploration, two-way wave extrapolation operator and boundary conditions, imaging conditions and low frequency noise attenuation, and GPU/CPU system based RTM imaging algorithms. Migration velocity model building methods in depth domain for complicated structures are illustrated in this book. The research status and development of velocity model building are introduced. And the impacting factors are also discussed. Several different velocity model building methods are also represented and analyzed. The book also provides the reader with several case studies of field seismic data imaging in different kinds of basins to show the methods used in practice.
Author : Pan Deng
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (15 download)
Download or read book Theory and Application of Weighting Functions in Seismic Velocity Analysis and Post-stack Noise Attenuation written by Pan Deng and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, I focus on the theory and application of weighting functions in seismic velocity analysis and post-stack noise attenuation. Specifically, the adaptability and resolution of a weighted-semblance spectrum are greatly improved, and the degree of random-noise attenuation and the continuity of reflection events after weighted-common-midpoint (CMP) stacking are distinctly increased. First, hybrid AB semblance and local-similarity-weighted stacking provide a better solution to structural imaging using the AVO II polarity-reversal data when conventional methods would usually produce an incorrect stacking response. The significance of this work is to build a bridge between seismic-data processing and geological interpretation because this approach is used as an effective detector for the true locations of seismic reflectors where the artifacts are removed. Second, high-resolution of semblance spectra and energy-focused reflection events in stacking sections are investigated in double-weighted stacking that weights twice on the calculation of semblance and stack with the same local-similarity-weighting function. Meanwhile, weighted stacking is demonstrated to play a much more important role in enhancing the final stacking section than weighted semblance-based velocity analysis through field data from the Gulf of Mexico. Finally, I propose a formula for discrete alpha-trimmed stacking to suppress random, spike-like, and interference noises in the condition of imperfect data due to insufficient pre-processing. This method takes into account the vertical change of seismic data by incorporating measures of data dispersion into the calculation of discrete trimming parameter. Synthetic tests on CMP gathers also illustrate the different sensitivity of stacking to unmuted frequency stretch, residual moveout, and residual statics.
Author : Andreas Stark
Publisher : Universal-Publishers
ISBN 13 : 159942441X
Total Pages : 591 pages
Book Rating : 4.5/5 (994 download)
Download or read book Seismic Methods and Applications written by Andreas Stark and published by Universal-Publishers. This book was released on 2008 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been written for those who need a solid understanding of the seismic exploration method without difficult mathematics. It is presented in a format that allows one to naturally progress from the underlying physical principles to the actual seismic method. The mathematics needed for the subject is kept as simple as possible; students only need high school physics and mathematics to thoroughly grasp the principles covered. Dr. Stark has developed this text and honed its content with feedback from hundreds of students over nearly two decades of teaching seismic exploration geophysics. This textbook will teach students the principles for the detection of geologic structures, earthquake zones and hazards, resource exploration, and geotechnical engineering.
Author : S. P. Maurya
Publisher : Springer Nature
ISBN 13 : 3030456625
Total Pages : 221 pages
Book Rating : 4.0/5 (34 download)
Download or read book Seismic Inversion Methods: A Practical Approach written by S. P. Maurya and published by Springer Nature. This book was released on 2020-05-28 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to seismic inversion methods and their application to both synthetic and real seismic data sets. Seismic inversion methods are routinely used to estimate attributes like P-impedance, S-impedance, density, the ratio of P-wave and S-wave velocities and elastic impedances from seismic and well log data. These attributes help to understand lithology and fluid contents in the subsurface. There are several seismic inversion methods available, but their application and results differ considerably, which can lead to confusion. This book explains all popular inversion methods, discusses their mathematical backgrounds, and demonstrates their capacity to extract information from seismic reflection data. The types covered include model-based inversion, colored inversion, sparse spike inversion, band-limited inversion, simultaneous inversion, elastic impedance inversion and geostatistical inversion, which includes single-attribute analysis, multi-attribute analysis, probabilistic neural networks and multi-layer feed-forward neural networks. In addition, the book describes local and global optimization methods and their application to seismic reflection data. Given its multidisciplinary, integrated and practical approach, the book offers a valuable tool for students and young professionals, especially those affiliated with oil companies.
Author : Lingxiao Jia
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.5/5 (381 download)
Download or read book Methodologies and Applications of Prestack Waveform Inversion, Reverse Time Migration, and Artificial Intelligence in Seismic Exploration written by Lingxiao Jia and published by . This book was released on 2021 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic migration and inversion describe a class of closely related processes sharing common objectives and underlying physical principles. Reverse time migration (RTM) is a migration method that can provide high quality images for structures with steep dips and strong horizontal velocity variations. Prestack waveform inversion (PWI) is an inversion method that is a practical choice for subsurface reservoir description using the current computational resources. Although RTM and PWI provide a depth image and subsurface properties, interpreting subsurface structures from the seismic images can be challenging, especially when the geology is complex. Use of automated methods using the artificial intelligence (AI) recently became popular for interpreting such complex geology. This dissertation focuses on the applications of PWI, RTM, and AI for interpreting seismic data using three proposed methods. The first method is a new methodology and workflow for a nonlinear prestack isotropic elastic waveform inversion, which we call data driven inversion, meaning that we derive the initial model entirely from the seismic data without using any well information. The second method is a joint iterative workflow that combines RTM and PWI, where PWI is run on the common image gathers (CIGs) obtained from RTM, followed by another pass of RTM, taking the updated models from PWI as input. This method allows for automatic model updates to improve the accuracy of both depth image and subsurface elastic model. The third method is an AI based semi-supervised training workflow for salt recognition, which allows the predicted model to iteratively improve as more and more information is distilled from the unlabeled data into the model. For each iteration, the model obtained from previous iteration is used for generating pseudo labels for the unlabeled data. This automated consecutive data distillation allows the model prediction to improve with iteration, without any need for human intervention. All these methods were validated using synthetic data and then applied to real datasets.
Author : Serge D. Benoliel
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (59 download)
Download or read book Frequency-wavenumber Approach of Slant Stack Applications in Seismic Data Processing written by Serge D. Benoliel and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Gaiser
Publisher : SEG Books
ISBN 13 : 1560803355
Total Pages : 637 pages
Book Rating : 4.5/5 (68 download)
Download or read book 3C Seismic and VSP: Converted waves and vector wavefield applications written by James Gaiser and published by SEG Books. This book was released on 2016-06-30 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3C seismic applications provide enhanced rock property characterization of the reservoir that can complement P-wave methods. Continued interest in converted P- to S-waves (PS-waves) and vertical seismic profiles (VSPs) has resulted in the steady development of advanced vector wavefield techniques. PS-wave images along with VSP data can be used to help P-wave interpretation of structure in gas obscured zones, of elastic and fluid properties for lithology discrimination from S-wave impedance and density inversion in unconventional reservoirs, and of fracture characterization and stress monitoring from S-wave birefringence (splitting) analysis. The book, which accompanies the 2016 SEG Distinguished Instructor Short Course, presents an overview of 3C seismic theory and practical application: from fundamentals of PS-waves and VSPs, through to acquisition and processing including interpretation techniques. The emphasis is on unique aspects of vector wavefields, anisotropy, and the important relationships that unify S-waves and P-waves. Various applications and case studies demonstrate image benefits from PS-waves, elastic properties and fluid discrimination from joint inversion of amplitude variations with offset/angle (AVO/A), and VSP methods for anisotropic velocity model building and improved reservoir imaging. The book will be of interest to geophysicists, geologists, and engineers, especially those involved with or considering the use of AVO/A inversion, fracture/stress characterization analyses, or interpretation in gas-obscured reservoirs.
Author : Simon S. Luo
Publisher :
ISBN 13 :
Total Pages : 105 pages
Book Rating : 4.:/5 (898 download)
Download or read book Improved Methods of Reflection Seismic Data Processing for Velocity Estimation, Imaging, and Interpretation written by Simon S. Luo and published by . This book was released on 2014 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Anthony Jervis
Publisher :
ISBN 13 :
Total Pages : 370 pages
Book Rating : 4.:/5 (34 download)
Download or read book Optimization methods for 2-D pre-stack migration velocity estimation written by Michael Anthony Jervis and published by . This book was released on 1993 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Derman Dondurur
Publisher : Elsevier
ISBN 13 : 0128114916
Total Pages : 610 pages
Book Rating : 4.1/5 (281 download)
Download or read book Acquisition and Processing of Marine Seismic Data written by Derman Dondurur and published by Elsevier. This book was released on 2018-03-09 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acquisition and Processing of Marine Seismic Data demonstrates the main principles, required equipment, and suitable selection of parameters in 2D/3D marine seismic data acquisition, as well as theoretical principles of 2D marine seismic data processing and their practical implications. Featuring detailed datasets and examples, the book helps to relate theoretical background to real seismic data. This reference also contains important QC analysis methods and results both for data acquisition and marine seismic data processing. Acquisition and Processing of Marine Seismic Data is a valuable tool for researchers and students in geophysics, marine seismics, and seismic data, as well as for oil and gas exploration. Contains simple step-by-step diagrams of the methodology used in the processing of seismic data to demonstrate the theory behind the applications Combines theory and practice, including extensive noise, QC, and velocity analyses, as well as examples for beginners in the seismic operations market Includes simple illustrations to provide to the audience an easy understanding of the theoretical background Contains enhanced field data examples and applications
Author : Naide Pan
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (177 download)
Download or read book The Double Slant Stack with Application to Seismic Data Analysis written by Naide Pan and published by . This book was released on 1987 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U.S. Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1450 pages
Book Rating : 4.:/5 (891 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1994 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 1994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
