Seismic data do not contain low and highfrequency information because of the bandlimited nature of the source wavelet. Seismic reflections of rock properties by jack dvorkin. We seem to be a bit hopeless at fullblown book revi. If you want to understand seismic inversion this is the best you can choose doesnt matter if you are a beginner or an experienced inversion expert. Cgg geoconsulting utilizes a variety of different seismic inversion techniques. Stewart abstract linear equations relate small changes in rock properties across an interface to seismic reflectivity aki and richards, 1980. Early inversion techniques transformed the seismic data into pimpedance the product of density and pwave velocity, from which we were able to make predictions about lithology and porosity. The book catalogs various cases, including clastic sediments, carbonates, and timelapse seismic monitoring, and discusses the effect of attenuation on seismic reflections. Inversion is defined as mapping the physical structure and properties of the subsurface of the earth using measurements made on the surface, creating a model of the earth using seismic data as input. However, the advantage of the seismic method is that coverage can be made over large areas of the earths surface. Pdf stochastic and deterministic seismic inversion methods for. The algorithm is named for william of occam 0 to 49, who asserted that scientific hypotheses and reasoning should be as simple as possible. Mrinal sen is a specialist on seismic wave propagation including anisotropy. They offer several advantages for seismic data processing, in.
Professor sen serves as an associate editor of the journals geophysics, international journal of geophysics, and journal of seismic exploration. Reservoir characterization using avo and seismic inversion. The goal of this book is to explain the fundamental principles of seismic exploration, seismic wave propagation, and inversion in a language that is understandable by geoscientists and engineers alike so that the team is aware of the significance and limitations of the inversion results. Publishers of the journal of seismic exploration and the seismic applications book. Oct 17, 2012 this feature is not available right now. Seismic inversion spe bookstore society of petroleum engineers. Seismic inversion is a technique that has been in use by geophysicists for almost forty years. Conventional practice was to delineate the reservoir using post stack seismic data while prestack seismic data was completely ignored. An overview of the current techniques used in the inversion of seismic data is provided. In addition to continuing his work on inverse problems and uncertainty quantification using stochastic methods, mrinal works on numerical and analytical methods for seismogram synthesis.
Nevertheless, in practice, applications of inversion methods can be grouped in two categories data modeling and earth modeling. Mrinal sen has made significant contributions in applied seismology on elastic anisotropic. Latest titles society of exploration geophysicists. Sc degrees in applied geophysics from indian school of mines and a phd in geophysics from the university of hawaii at manoa. No portion of this book may be reproduced in any form or by any. Enhancing the quality of seismic impedance data, published in aapg explorer. This is especially true of the large threedimensional surveys that are now routinely being acquired. For this reason, seismic inversion is an important processing tool. Impedance inversion has been carried out in the time domain for the last four decades. He has published more than 180 papers, and two books, and supervised over 50 graduate students. Global optimization methods in geophysical inversion ebook by. A general bayesian formulation for the inverse problem can be imple. In a seismic inversion the original reflectivity data, as typically recorded routinely, is converted from an interface property i. Seismic inversion methods are routinely used to estimate attributes like pimpedance, simpedance, density, the ratio of pwave and swave velocities and elastic impedances from seismic and well log data.
If you would like to participate, you can choose to edit this article, or visit the project page for more information. Last year, i did a roundup of six books about seismic interpretation. The position of the crossplot zones on the seismic stack of figure 2, gas zone red. Crains petrophysical handbook seismic inversion basics. This book covers the basic theory and techniques used in seismic inversion, corresponding to these three issues, emphasising the physical interpretation of. The results of seismic inversion can be best interpreted by a team of geologists, geophysicists and reservoir engineers. Journal of seismic exploration download ebook pdf, epub. Mrinal kanti sen, an indianamerican geophysicist is the john a. Seismic inversion is essentially a very simple procedure.
Providing an uptodate overview of the most popular global optimization methods used in interpreting geophysical observations, this new edition includes a detailed description of the theoretical development underlying each method and a thorough explanation of the. One of the major goals of geophysical inversion is to find earth models that explain the geophysical observations. Global optimization methods in geophysical inversion. Mrinal sen has made significant contributions in applied seismology on elastic anisotropic wave propagation, computational seismology, fullwaveform inversion, inversion of seismic data for fracture analysis, fluid content, rock properties and improved resolution, reservoir characterization, and co2 sequestration. Again, notice the excellent delineation of the gas sand. A broad meaning of seismic inversion commonly referred to as elastic inversion, is the grand scheme of estimating elastic parameters directly from observed data. Mrinal k sen jackson school of geosciences the university of. Seismic inversion is now commonly used on poststack and pre stack seismic data for estimating rock. The primary application is for inverting reflection andor transmission data from engineering or exploration surveys, but the methods described also can be used for earthquake studies. Seismic inversion is part of wikiproject geology, an attempt at creating a standardized, informative, comprehensive and easytouse geology resource. Browse books in the seg book mart or view the selection of ebooks available in the seg library. Pysit is an open source toolbox for seismic inversion and seismic imaging developed by russell j. Read global optimization methods in geophysical inversion by mrinal k.
The interest in seismic inversion techniques has been growing steadily over the last couple of years. Seismic inversion geoscienceworld books geoscienceworld. Seismic inversion and synthetic sonic logs calibration of seismic attributes to ground truth is still an emerging science. He serves on several national and international committees, and is an associate editor of leading journals such as geophysics, the journal of. Scope the journal of seismic exploration is an international medium for the publication of research in seismic modeling, processing, inversion, interpretation, field techniques, borehole techniques, tomography, instrumentation and software.
These equations for pwave and ps wave reflectivity can be inverted exactly or in a leastsquares sense to provide. Seismic acoustic impedance inversion in reservoir characterization utilizing gocad by steven clawson and haizui hairay meng, presented at the 2000 gocad users meeting introduction workflows for utilizing seismic data inverted to acoustic impedance data. As the title of the book suggests, the aim of this book is to describe the application of several recently developed global optimization methods to geophysical problems. Several different examples of geophysical inversion, including joint inversion of disparate geophysical datasets, are provided to help readers design algorithms for their own applications. Global optimization methods in geophysical inversion, volume. Seismic inversion is a technique that has been in use by geophysicists for over forty years.
He has been a pioneer in the field seismic wave propagation and inverse theory applied to geophysical problems. Gonzalez3 abstract there are various approaches for quantitative estimation of reservoir properties from seismic inversion. Thus the branch of mathematics known as optimization has found significant use in many geophysical applications. The old and the new in seismic inversion cseg recorder. Seismic inversion for reservoir properties combining statistical rock physics and geostatistics.
Reservoir characterization using avo and seismic inversion techniques abhinav kumar dubey, iit kharagpur summary reservoir characterization is one of the most important components of seismic data interpretation. Seismic inversion may be pre or poststack, deterministic, random or geostatistical. Providing an uptodate overview of the most popular global optimization methods used in interpreting geophysical observations, this new edition includes a detailed description of the theoretical development underlying each method and a thorough explanation of the design, implementation and limitations of algorithms. The first two chapters are about some seismic fundamentals and seismic wave propagation. Pdf seismic inversion methods and some of their constraints. Recent advances in technology broadband seismic technology. In the example shown above, the inversion was performed using a. Seismic acoustic impedance inversion in reservoir characte. An important subdivision of these methods comes under the heading seismic inversion and deconvolution. He serves on several national and international committees, and is an associate editor of leading journals such as geophysics, the journal of seismic exploration and the international journal of geophysics. If it has to be carried out in depth, there are a few questions that come to mind what is so different about carrying out inversion in depth rather than time, how does it help, and if it were. It shows how to build earth models pseudowells using deterministic and statistical approaches, and includes case studies based on real well data. Hewett and laurent demanet in the imaging and computing group in. There are also numerous other impedance methods used in.
Both local and global optimization methods are used in the estimation of material properties from geophysical data. This book describes the theory and practice of inverting seismic data for the subsurface rock properties of the earth. Seismic inversion project gutenberg selfpublishing. The goal of this book is to explain the fundamental principles of seismic exploration, seismic wave propagation, and. Seismic modelbased inversion using matlab intechopen. In 2006, mrinal published a monograph on seismic inversion for the society of petroleum engineers. Here are some of the papers that we have published on seismic inversion. Global optimization methods in geophysical inversion by. Seismic inversion, in geophysics is the process of transforming seismic reflection data into a. It is an excellent source for those who want to start understanding seismic inversion in a clear language.
Ppzg offers a full suite of seismic inversion techniques to our customers. This book describes an uptodate overview of recent global. In 2006, mrinal published a monograph on seismic inversion for the. Ground motion estimation during strong seismic events using matlab. Typically, a reflection coefficient series from a well within the boundaries of the seismic survey is used to estimate the wavelet phase and frequency. An iterative process in interpretation of seismic data. Integrated studies are essential to hydrocarbon development projects e. Global optimization methods in geophysical inversion by mrinal k sen 34 editions published between 1995 and 2018 in english and held by 1,566 worldcat member libraries worldwide. Accurate wavelet estimation is critical to the success of any seismic inversion. This book introduces readers to seismic inversion methods and their application to both synthetic and real seismic data sets. This is an authoritative and valuable text for researchers and graduate students in geophysics, inverse theory and exploration geoscience, and an important resource for professionals working in engineering and petroleum exploration. The seismic inversion starts from chapter three and you can start from there if you wish.
As a regression process, convolutional neural networks is then applied to estimate the reservoir porosity, based on the outputs of seismic inversion scheme. Seismic inversion for reservoir properties combining. Pdf results from a typical poststack or prestack seismic inversion are band limited. Providing an uptodate overview of the most popular global optimization methods used in interpreting geophysical observ. All modern seismic inversion methods require seismic data and a wavelet estimated from the data. Estimation of reservoir porosity based on seismic inversion. The nonlinear inversion scheme used is able to explore the complex relationship between rock properties and seismic data, which could potentially provide a higher quality of inversion results. Seismic inversion, in geophysics, is the process of transforming seismic reflection data into a quantitative rockproperty description of a reservoir. Seismic inversion transfers the seismic interfaces into layers and provides powerful additional information that can be used to lower your risk in exploration, and to quantify your reserves in production.
A deterministic inversion of such bandlimited seismic data produces smooth models that are devoid of highfrequency variations observed in well logs. A technique for inversion, or generating a model that is consistent with the data, of electromagnetic data, including resistivity and magnetotelluric data. The appropriate technique is determined by the complexity of the geologic conditions, the customers reservoir characterization goals and the data available. The objective of seismic exploration is to delineate the subsurface structure of the earth. Click download or read online button to get journal of seismic exploration book now. This site is like a library, use search box in the widget to get ebook that you want. Global optimization methods in geophysical inversion m.
1481 115 1017 506 1272 295 936 170 839 1001 1035 922 925 1261 1092 763 1379 862 1087 1487 148 542 623 10 278 1160 290 1211 1233 830 1112 1169 200 1138 569 806 336 1216 268