Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Wavelet Approaches To Seismic Data Analysis
Download Wavelet Approaches To Seismic Data Analysis full books in PDF, epub, and Kindle. Read online Wavelet Approaches To Seismic Data Analysis ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Wavelet Approaches to Seismic Data Analysis by : Qingqing Liao
Download or read book Wavelet Approaches to Seismic Data Analysis written by Qingqing Liao and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There have been extensive applications of wavelets to petroleum seismic data. In this dissertation, we focus on developing and testing new wavelets approaches to seismic data compression, microseismic first arrival picking, seismic event picking, and seismic reflectivity inversion. First, we developed new methodologies for seismic data compression based on wavelets. We started with applying matching pursuit to obtain a sparse representation of seismic signals on a dictionary, so we only need to store and transmit the sparse representation. The dictionaries tested initially are Symlets. To improve the performance of compression further, we proposed the new idea of using subspace matching pursuit to obtain perfect reconstruction for a phase-rotated signal. We obtained better fidelity than matching pursuit, but the convergence is slowed down due to the incompleteness of the dictionary. Finally we proposed using matching pursuit with a combination of Symlets dictionary and subspace dictionary, thereby obtaining the best quality with the same compression ratio. Second, we report a new method of automatic first break detection of P-waves and S-waves. Our method is based on a time-frequency analysis of the seismic trace using minimum uncertainty wavelets, in particular in the minimum-phase form. We have tested our method on both lab data with various signal-to-noise ratio (S/N or SNR) and on field data. Third, we explored methods of automatic seismic event picking. It is known that no single automatic seismic event indicator works for all data; therefore, we explored two indicators based on the minimum uncertainty wavelets and on an energy ratio. Thresholding was applied to pick seismic events. We have tested the methods with both synthetic data and offshore field data. Finally, we proposed new seismic sparse inversion methods based on complex basis pursuit (CBP) and a modified complex basis pursuit (MCBP). In practice, constant phase wavelets are used for seismic inversion algorithms, for example, the basis pursuit (BP). If the phase of the estimated wavelet is wrong, this will surely cause an error in reflectivity. We can obtain more accurate reflectivity even though the estimated wavelet has biased phase by using CBP and MCBP rather than BP.
Book Synopsis Digital Imaging and Deconvolution by : Enders A. Robinson
Download or read book Digital Imaging and Deconvolution written by Enders A. Robinson and published by SEG Books. This book was released on 2008 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering ideas and methods while concentrating on fundamentals, this book includes wave motion; digital imaging; digital filtering; visualization aspects of the seismic reflection method; sampling theory; the frequency spectrum; synthetic seismograms; wavelet processing; deconvolution; seismic attributes; phase rotation; and seismic attenuation.
Book Synopsis Practical Seismic Data Analysis by : Hua-Wei Zhou
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: Modern introduction to seismic data processing demonstrating exploration and global geophysics applications through real data and tutorial examples that can be demonstrated with the instructor's software of choice. The underlying physics and mathematics of analysis methods is presented, showing students the limitations and potential for creating models of the sub-surface.
Book Synopsis Spectral Analysis of Seismic Data Using Wavelet Transform by : Li Xia
Download or read book Spectral Analysis of Seismic Data Using Wavelet Transform written by Li Xia and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tau-p: a plane wave approach to the analysis of seismic data by : P.L Stoffa
Download or read book Tau-p: a plane wave approach to the analysis of seismic data written by P.L Stoffa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In exploration seismology, data are acquired at multiple source and receiver posi tions along a profile line. These data are subsequently processed and interpreted. The primary result of this process is a subsurface image of the exploration target. As part of this procedure, additional information is also obtained about the subsurface material properties, e.g., seismic velocities. The methods that are employed in the acquisition and processing of exploration seismic data are internally consistent. That is, principally near vertical incidence seismic waves are generated, recorded and subsequently imaged. The data processing methods commonly used are based upon a small angle of incidence approximation, thus making the imaging problem tractable for existing data processing technology. Although tremendously successful, the limitations of this method are generally recognized. Current and future exploration goals will likely require the use of additional seismic waves, i.e., both compressional and shear precritical and postcritical reflections and refractions. Also, in addition to making better use of seismic travel times, recent efforts to directly incorporate seismic amplitude variations show that the approach may lead to a better understanding of subsurface rock properties. In response to more demanding exploration goals, recent data acquisition techniques have improved significantly by increasing the spatial aperture and incorporating a large number of closely spaced receivers. The need for better subsurface resolution in depth and position has encouraged the use of 240, 512, and even 1024 recorded data channels with receiver separations of 5 to 25 m.
Book Synopsis Frequency-time Analysis of Seismic Reflection Data Using the Wavelet Transform and Related Methods by : Avijit Chakraborty
Download or read book Frequency-time Analysis of Seismic Reflection Data Using the Wavelet Transform and Related Methods written by Avijit Chakraborty and published by . This book was released on 1996 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Data Analysis Techniques in Hydrocarbon Exploration by : Enwenode Onajite
Download or read book Seismic Data Analysis Techniques in Hydrocarbon Exploration written by Enwenode Onajite and published by Elsevier. This book was released on 2013-09-26 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic Data Analysis Techniques in Hydrocarbon Exploration explains the fundamental concepts and skills used to acquire seismic data in the oil industry and the step-by-step techniques necessary to extract the sections that trap hydrocarbons as well as seismic data interpretation skills. It enhances the ability to interpret seismic data and use that data for basin evaluation, structural modeling of a fault, reservoir characterization, rock physics analysis, field development, and production studies. Understanding and interpreting seismic data is critical to oil and gas exploration companies. Arming young geoscientists with a reference that covers the key principles of seismic data analysis will enhance their job knowledge, skills and performance. A fundamental grasp of seismic data enhances employability and aids scientists in functioning effectively when working with seismic data in industry. Edited by a team of petroleum geoscientists with more than 30 years of experience in hydrocarbon exploration and data analysis at O&G companies. More than 200 figures, photographs, and illustrations aid in the understanding of the fundamental concepts and techniques used to acquire seismic data Takes an easy-to-follow, step-by-step approach to presenting the techniques and skills used to extract the geologic sections from acquired seismic data. Enhances the geoscientist’s effectiveness when using seismic data for field development and other exploration and production studies
Book Synopsis Numerical Methods of Exploration Seismology by : Gary F. Margrave
Download or read book Numerical Methods of Exploration Seismology written by Gary F. Margrave and published by Cambridge University Press. This book was released on 2019-01-10 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical guide to the theory and practice of seismic data processing with MATLAB algorithms for advanced students, researchers and professionals.
Book Synopsis A wavelet transform approach to seismic processing by : Franciscus Joseph Dessing
Download or read book A wavelet transform approach to seismic processing written by Franciscus Joseph Dessing and published by . This book was released on 1997 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploiting Seismic Waveforms by : Brian L. N. Kennett
Download or read book Exploiting Seismic Waveforms written by Brian L. N. Kennett and published by Cambridge University Press. This book was released on 2020-12-03 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in seismology including correlation techniques, heterogeneity and waveform inversion, illustrated with observational examples.
Book Synopsis Some Applications of Wavelet Transform in Seismic Data Processing by : Milos Cvetkovic
Download or read book Some Applications of Wavelet Transform in Seismic Data Processing written by Milos Cvetkovic and published by . This book was released on 2007 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Data Analysis by : Özdoğan Yilmaz
Download or read book Seismic Data Analysis written by Özdoğan Yilmaz and published by SEG Books. This book was released on 2001 with total page 2065 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding the author's original work on processing to include inversion and interpretation, and including developments in all aspects of conventional processing, this two-volume set is a comprehensive and complete coverage of the modern trends in the seismic industry - from time to depth, from 3D to 4D, from 4D to 4C, and from isotropy to anisotropy.
Book Synopsis 52 Things You Should Know about Geophysics by : Matt Hall
Download or read book 52 Things You Should Know about Geophysics written by Matt Hall and published by Agile Libre. This book was released on 2012 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is something for every subsurface professional in these fifty-two short essays by more than three dozen petroleum geoscientists. The roster includes some of the most prolific geophysicists of our time, as well as some recently qualified scientists. The topics are even more diverse, ranging from anisotropic media to pre-stack interpretation, and from stories of early seismic workstations to career advice for the future.
Book Synopsis Time-frequency Analysis of Seismic Signals by : Yanghua Wang
Download or read book Time-frequency Analysis of Seismic Signals written by Yanghua Wang and published by John Wiley & Sons. This book was released on 2022-10-11 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical and insightful discussion of time-frequency analysis methods and technologies Time–frequency analysis of seismic signals aims to reveal the local properties of nonstationary signals. The local properties, such as time-period, frequency, and spectral content, vary with time, and the time of a seismic signal is a proxy of geologic depth. Therefore, the time–frequency spectrum is composed of the frequency spectra that are generated by using the classic Fourier transform at different time positions. Different time–frequency analysis methods are distinguished in the construction of the local kernel prior to using the Fourier transform. Based on the difference in constructing the Fourier transform kernel, this book categorises time–frequency analysis methods into two groups: Gabor transform-type methods and energy density distribution methods. This book systematically presents time–frequency analysis methods, including technologies which have not been previously discussed in print or in which the author has been instrumental in developing. In the presentation of each method, the fundamental theory and mathematical concepts are summarised, with an emphasis on the engineering aspects. This book also provides a practical guide to geophysicists who attempt to generate geophysically meaningful time–frequency spectra, who attempt to process seismic data with time-dependent operations for the fidelity of nonstationary signals, and who attempt to exploit the time–frequency space seismic attributes for quantitative characterisation of hydrocarbon reservoirs.
Book Synopsis Numerical Methods of Exploration Seismology by : Gary F. Margrave
Download or read book Numerical Methods of Exploration Seismology written by Gary F. Margrave and published by Cambridge University Press. This book was released on 2019-01-10 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploration seismology uses seismic imaging to form detailed images of the Earth's interior, enabling the location of likely petroleum targets. Due to the size of seismic datasets, sophisticated numerical algorithms are required. This book provides a technical guide to the essential algorithms and computational aspects of data processing, covering the theory and methods of seismic imaging. The first part introduces an extensive online library of MATLAB® seismic data processing codes maintained by the CREWES project at the University of Calgary. Later chapters then focus on digital signal theory and relevant aspects of wave propagation and seismic modelling, followed by deconvolution and seismic migration methods. Presenting a rigorous explanation of how to construct seismic images, it provides readers with practical tools and codes to pursue research projects and analyses. It is ideal for advanced students and researchers in applied geophysics, and for practicing exploration geoscientists in the oil and gas industry.
Book Synopsis Wavelet Analysis and Multiresolution Methods by : Tian-Xiao He
Download or read book Wavelet Analysis and Multiresolution Methods written by Tian-Xiao He and published by CRC Press. This book was released on 2000-05-05 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers selected from the Wavelet Analysis and Multiresolution Methods Session of the AMS meeting held at the University of Illinois at Urbana-Champaign. The contributions cover: construction, analysis, computation and application of multiwavelets; scaling vectors; nonhomogenous refinement; mulivariate orthogonal and biorthogonal wavelets; and other related topics.
Book Synopsis Information-Based Inversion and Processing with Applications by : T.J. Ulrych
Download or read book Information-Based Inversion and Processing with Applications written by T.J. Ulrych and published by Elsevier. This book was released on 2005-12-16 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information-Based Inversion and Processing with Applications examines different classical and modern aspects of geophysical data processing and inversion with emphasis on the processing of seismic records in applied seismology. Chapter 1 introduces basic concepts including: probability theory (expectation operator and ensemble statistics), elementary principles of parameter estimation, Fourier and z-transform essentials, and issues of orthogonality. In Chapter 2, the linear treatment of time series is provided. Particular attention is paid to Wold decomposition theorem and time series models (AR, MA, and ARMA) and their connection to seismic data analysis problems. Chapter 3 introduces concepts of Information theory and contains a synopsis of those topics that are used throughout the book. Examples are entropy, conditional entropy, Burg's maximum entropy spectral estimator, and mutual information. Chapter 4 provides a description of inverse problems first from a deterministic point of view, then from a probabilistic one. Chapter 5 deals with methods to improve the signal-to-noise ratio of seismic records. Concepts from previous chapters are put in practice for designing prediction error filters for noise attenuation and high-resolution Radon operators. Chapter 6 deals with the topic of deconvolution and the inversion of acoustic impedance. The first part discusses band-limited extrapolation assuming a known wavelet and considers the issue of wavelet estimation. The second part deals with sparse deconvolution using various 'entropy' type norms. Finally, Chapter 7 introduces recent topics of interest to the authors. The emphasis of this book is on applied seismology but researchers in the area of global seismology, and geophysical signal processing and inversion will find material that is relevant to the ubiquitous problem of estimating complex models from a limited number of noisy observations. Non-conventional approaches to data processing and inversion are presented Important problems in the area of seismic resolution enhancement are discussed Contains research material that could inspire graduate students and their supervisors to undertake new research directions in applied seismology and geophysical signal processing
