Stewart abstract linear equations relate small changes in rock properties across an interface to seismic reflectivity aki and richards, 1980. Seismic acoustic impedance inversion in reservoir characte. Seismic inversion, in geophysics, is the process of transforming seismic reflection data into a quantitative rockproperty description of a reservoir. 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. Sc degrees in applied geophysics from indian school of mines and a phd in geophysics from the university of hawaii at manoa. A deterministic inversion of such bandlimited seismic data produces smooth models that are devoid of highfrequency variations observed in well logs. 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. For this reason, seismic inversion is an important processing tool. A broad meaning of seismic inversion commonly referred to as elastic inversion, is the grand scheme of estimating elastic parameters directly from observed data. Read global optimization methods in geophysical inversion by mrinal k. Professor sen serves as an associate editor of the journals geophysics, international journal of geophysics, and journal of seismic exploration.
Seismic inversion spe bookstore society of petroleum engineers. 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. The appropriate technique is determined by the complexity of the geologic conditions, the customers reservoir characterization goals and the data available. This is especially true of the large threedimensional surveys that are now routinely being acquired.
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 observations, this new edition includes a detailed description of the theoretical development underlying each method and a thorough explanation of the. These equations for pwave and ps wave reflectivity can be inverted exactly or in a leastsquares sense to provide. Mrinal k sen jackson school of geosciences the university of. Publishers of the journal of seismic exploration and the seismic applications book.
In 2006, mrinal published a monograph on seismic inversion for the. Global optimization methods in geophysical inversion by. This site is like a library, use search box in the widget to get ebook that you want. Rui zhang1,2, mrinal k sen1,3, son phan1,4and sanjay srinivasan2.
An iterative process in interpretation of seismic data. Pdf stochastic and deterministic seismic inversion methods for. Browse books in the seg book mart or view the selection of ebooks available in the seg library. They offer several advantages for seismic data processing, in. The book catalogs various cases, including clastic sediments, carbonates, and timelapse seismic monitoring, and discusses the effect of attenuation on seismic reflections. Seismic inversion is part of wikiproject geology, an attempt at creating a standardized, informative, comprehensive and easytouse geology resource. Mrinal kanti sen, an indianamerican geophysicist is the john a. 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. Providing an uptodate overview of the most popular global optimization methods used in interpreting geophysical observ. 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. The position of the crossplot zones on the seismic stack of figure 2, gas zone red. In a seismic inversion the original reflectivity data, as typically recorded routinely, is converted from an interface property i.
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. Global optimization methods in geophysical inversion ebook by. Estimation of reservoir porosity based on seismic inversion. Mrinal sen is a specialist on seismic wave propagation including anisotropy. 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. It shows how to build earth models pseudowells using deterministic and statistical approaches, and includes case studies based on real well data. Seismic data do not contain low and highfrequency information because of the bandlimited nature of the source wavelet. We seem to be a bit hopeless at fullblown book revi. Ground motion estimation during strong seismic events using matlab. 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. There are also numerous other impedance methods used in. No portion of this book may be reproduced in any form or by any. A general bayesian formulation for the inverse problem can be imple.
Recent advances in technology broadband seismic technology. Quantifying shallow seismic anomalies, published in aapg explorer. Thus the branch of mathematics known as optimization has found significant use in many geophysical applications. Gonzalez3 abstract there are various approaches for quantitative estimation of reservoir properties from seismic inversion. 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.
Seismic inversion is a technique that has been in use by geophysicists for over forty years. Enhancing the quality of seismic impedance data, published in aapg explorer. In 2006, mrinal published a monograph on seismic inversion for the society of petroleum engineers. Oct 17, 2012 this feature is not available right now. Pysit is an open source toolbox for seismic inversion and seismic imaging developed by russell j. A large variety of computerprocessing methods are available to transform the observed seismic data into a form that is more useful to the seismic interpreter. Nevertheless, in practice, applications of inversion methods can be grouped in two categories data modeling and earth modeling.
It is an excellent source for those who want to start understanding seismic inversion in a clear language. The results of seismic inversion can be best interpreted by a team of geologists, geophysicists and reservoir engineers. The objective of seismic exploration is to delineate the subsurface structure of the earth. This book covers the basic theory and techniques used in seismic inversion, corresponding to these three issues, emphasising the physical interpretation of. 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. Seismic inversion is a technique that has been in use by geophysicists for almost forty years. Seismic inversion is now commonly used on poststack and pre stack seismic data for estimating rock. Crains petrophysical handbook seismic inversion basics. He has published more than 180 papers, and two books, and supervised over 50 graduate students. Accurate wavelet estimation is critical to the success of any seismic inversion.
The goal of this book is to explain the fundamental principles of seismic exploration, seismic wave propagation, and. Seismic inversion project gutenberg selfpublishing. 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. Hewett and laurent demanet in the imaging and computing group in. Seismic inversion geoscienceworld books geoscienceworld. This book describes an uptodate overview of recent global. Global optimization methods in geophysical 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. He has been a pioneer in the field seismic wave propagation and inverse theory applied to geophysical problems. An important subdivision of these methods comes under the heading seismic inversion and deconvolution.
The old and the new in seismic inversion cseg recorder. In the example shown above, the inversion was performed using a model based on well x and the seismic. The first two chapters are about some seismic fundamentals and seismic wave propagation. Global optimization methods in geophysical inversion m.
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. Seismic inversion and synthetic sonic logs calibration of seismic attributes to ground truth is still an emerging science. However, the advantage of the seismic method is that coverage can be made over large areas of the earths surface. Integrated studies are essential to hydrocarbon development projects e. The algorithm is named for william of occam 0 to 49, who asserted that scientific hypotheses and reasoning should be as simple as possible. Cgg geoconsulting utilizes a variety of different seismic inversion techniques. He serves on several national and international committees, and is an associate editor of leading journals such as geophysics, the journal of.
Seismic inversion, in geophysics is the process of transforming seismic reflection data into a. Seismic modelbased inversion using matlab intechopen. This book describes the theory and practice of inverting seismic data for the subsurface rock properties of the earth. Reservoir characterization using avo and seismic inversion. Ppzg offers a full suite of seismic inversion techniques to our customers.
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. Seismic inversion for reservoir properties combining statistical rock physics and geostatistics. Journal of seismic exploration download ebook pdf, epub. Last year, i did a roundup of six books about seismic interpretation. This book introduces readers to seismic inversion methods and their application to both synthetic and real seismic data sets. Seismic inversion may be pre or poststack, deterministic, random or geostatistical. 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. The book provides an uptodate description of the methods used for fitting experimental data, or to estimate model parameters, and to unify. As a regression process, convolutional neural networks is then applied to estimate the reservoir porosity, based on the outputs of seismic inversion scheme.
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. Pdf seismic inversion methods and some of their constraints. 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. Seismic reflections of rock properties by jack dvorkin. The interest in seismic inversion techniques has been growing steadily over the last couple of years. Seismic inversion for reservoir properties combining.
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. Typically, a reflection coefficient series from a well within the boundaries of the seismic survey is used to estimate the wavelet phase and frequency. A technique for inversion, or generating a model that is consistent with the data, of electromagnetic data, including resistivity and magnetotelluric data. One of the major goals of geophysical inversion is to find earth models that explain the geophysical observations. 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. Global optimization methods in geophysical inversion, volume. Both local and global optimization methods are used in the estimation of material properties from geophysical data. Latest titles society of exploration geophysicists. Again, notice the excellent delineation of the gas sand. An overview of the current techniques used in the inversion of seismic data is provided.
Click download or read online button to get journal of seismic exploration book now. All modern seismic inversion methods require seismic data and a wavelet estimated from the data. The seismic inversion starts from chapter three and you can start from there if you wish. Mrinal sen has made significant contributions in applied seismology on elastic anisotropic. If you would like to participate, you can choose to edit this article, or visit the project page for more information. In the example shown above, the inversion was performed using a. Several different examples of geophysical inversion, including joint inversion of disparate geophysical datasets, are provided to help readers design algorithms for their own applications. Conventional practice was to delineate the reservoir using post stack seismic data while prestack seismic data was completely ignored. Impedance inversion has been carried out in the time domain for the last four decades. Seismic inversion is essentially a very simple procedure.
1428 1088 352 686 145 1078 634 1440 174 235 619 1488 746 821 682 1074 546 424 247 1304 170 842 536 699 1141 1086 1292 857 784 652 557 888 1366 836 829 252 96 524 844 430 1115 778 1115 1306