Response Of The Induction Logging Tool In An Arbitrarily Shaped Borehole
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Response Of The Induction Logging Tool In An Arbitrarily Shaped Borehole
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Author : Yi-Ming Wang
language : en
Publisher:
Release Date : 1988
Response Of The Induction Logging Tool In An Arbitrarily Shaped Borehole written by Yi-Ming Wang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Principles Of Induction Logging
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Author : Avital Kaufman
language : en
Publisher: Elsevier
Release Date : 2003-05-23
Principles Of Induction Logging written by Avital Kaufman and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-05-23 with Science categories.
The monograph introduces the reader to the world of inductive well logging - an established method for surveying the electrical conductivity of rocks surrounding a borehole. The emphasis is on developing a theory of inductive logging and on understanding logging tools basic physics, since this theory and understanding furnish valuable insights for inventing practical induction logging techniques. The first chapter of the book presents the basic laws of electromagnetism from a point of view that will facilitate the application of the theory to problems in electromagnetic logging. Many topics that play an important role in the design and interpretation of tools readings are covered. The vertical resolution and radial depth of investigation of different induction tools is systematically considered. Special attention is paid to principles of induction logging with transversal induction coils, to transient method of induction logging in media with cylindrical and horizontal interfaces and to the influence of anisotropy on the electromagnetic field measured in a conducting medium. Multi-coil differential induction probes and induction logging based on measuring the inphase component of the secondary field or the quadrature component difference are also described in detail. The last chapter is devoted to mathematical modeling of the response of induction logging tools in 3D geometries. The theory of inductive logging presented in this volume can be applied to logging after drilling as well as logging while drilling.
Induction Logging
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Author : Alexander A. Kaufman
language : en
Publisher: Elsevier Publishing Company
Release Date : 1989
Induction Logging written by Alexander A. Kaufman and has been published by Elsevier Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Science categories.
Induction well logging is a method for measuring the electrical conductivity of the rock around a borehole, with this information in turn being used to estimate the content of oil or gas in the rock. Since the development of induction well logging in the late 1940s, it has become the standard method used, primarily because of its simplicity of design. Now, 40 years later, and with the availability of new technology both in tool construction and in mathematical analysis, this book examines our understanding of induction logging in mathematical detail, and suggests how to develop more useful applications. The first part of the book reviews the theoretical basis of the electromagnetic methods for determining earth conductivity. All such methods are based fundamentally on Maxwell's equations. In practice, however, induction well logging is based on end-state behaviour for electromagnetic fields at low frequencies. Thus, the wave equation is developed for the extreme, low frequency condition, which produces many specific algebraic results of use in equipment design.
Borehole Effects In Triaxial Induction Logging
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Author :
language : en
Publisher:
Release Date : 2000
Borehole Effects In Triaxial Induction Logging written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Traditional induction tools use source arrays in which both receiving and transmitting magnetic dipoles are oriented along the borehole axis. This orientation has been preferred for traditional isotropic formation evaluation in vertical boreholes because borehole effects are minimized by the source-receiver-borehole symmetry. However, this source-receiver geometry tends to minimize the response of potentially interesting geological features? such as bed resistivity anisotropy and fracturing which parallels the borehole. Traditional uniaxial tool responses are also ambiguous in highly deviated boreholes in horizontally layered formations. Resolution of these features would be enhanced by incorporating one or more source transmitters that are perpendicular to the borehole axis. Although these transmitters can introduce borehole effects, resistive oil-based muds minimize borehole effects for horizontal source data collection and interpretation. However, the use of oil based muds is contraindicated in environmentally sensitive areas. For this reason, it is important to be able to assess the influence of conductive water based muds on the new generation of triaxial induction tools directed toward geothermal resource evaluation and to develop means of ameliorating any deleterious effects. The present paper investigates the effects of a borehole on triaxial measurements. The literature contains a great deal of work on analytic expressions for the EM response of a magnetic dipole contained in a borehole with possible invasion zones. Moran and Gianzero (1979) for example investigate borehole effects using such an expression. They show that for conductive borehole fluids, the borehole response can easily swamp the formation response for horizontal dipoles. This is also true when the source dipoles are enclosed in a resistive cavity, as shown by Howard (1981) using a mode match modeling technique.
Waves And Fields In Inhomogenous Media
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Author : Weng Cho Chew
language : en
Publisher: John Wiley & Sons
Release Date : 1999-02-02
Waves And Fields In Inhomogenous Media written by Weng Cho Chew and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-02-02 with Science categories.
Electrical Engineering/Electromagnetics Waves and Fields in Inhomogeneous Media A Volume in the IEEE Press Series on Electromagnetic Waves Donald G. Dudley, Series Editor ".it is one of the best wave propagation treatments to appear in many years." Gerardo G. Tango, CPG, Consulting Seismologist-Acoustician, Covington, LA This comprehensive text thoroughly covers fundamental wave propagation behaviors and computational techniques for waves in inhomogeneous media. The author describes powerful and sophisticated analytic and numerical methods to solve electromagnetic problems for complex media and geometry as well. Problems are presented as realistic models of actual situations which arise in the areas of optics, radio wave propagation, geophysical prospecting, nondestructive testing, biological sensing, and remote sensing. Key topics covered include: * Analytical methods for planarly, cylindrically and spherically layered media * Transient waves, including the Cagniard-de Hoop method * Variational methods for the scalar wave equation and the electromagnetic wave equation * Mode-matching techniques for inhomogeneous media * The Dyadic Green's function and its role in simplifying problem-solving in inhomogeneous media * Integral equation formulations and inverse problems * Time domain techniques for inhomogeneous media This book will be of interest to electromagnetics and remote sensing engineers, physicists, scientists, and geophysicists. This IEEE Press reprinting of the 1990 version published by Van Nostrand Reinhold incorporates corrections and minor updating. Also in the series. Mathematical Foundations for Electromagnetic Theory by Donald G. Dudley, University of Arizona at Tucson This volume in the series lays the mathematical foundations for the study of advanced topics in electromagnetic theory. Important subjects covered include linear spaces, Green's functions, spectral expansions, electromagnetic source representations, and electromagnetic boundary value problems. 1994 Hardcover 264 pp ISBN 0-7803-1022-5 IEEE Order No. PC3715 About the Series The IEEE Press Series on Electromagnetic Waves consists of new titles as well as reprints and revisions of recognized classics that maintain long-term archival significance in electromagnetic waves and applications. Designed specifically for graduate students, practicing engineers, and researchers, this series provides affordable volumes that explore electromagnetic waves and applications beyond the undergraduate level.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1990
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Physics categories.
The Summary Of Engineering Research
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Author : University of Illinois at Urbana-Champaign. Office of Engineering Publications
language : en
Publisher:
Release Date : 1989
The Summary Of Engineering Research written by University of Illinois at Urbana-Champaign. Office of Engineering Publications and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Engineering categories.
The Summary Of Engineering Research
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Author : University of Illinois (Urbana-Champaign campus). Engineering Experiment Station
language : en
Publisher:
Release Date : 1990
The Summary Of Engineering Research written by University of Illinois (Urbana-Champaign campus). Engineering Experiment Station and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Engineering categories.
Journal
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Author : Canadian Society of Exploration Geophysicists
language : en
Publisher:
Release Date : 1990
Journal written by Canadian Society of Exploration Geophysicists and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Prospecting categories.
Standard Methods Of Geophysical Formation Evaluation
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Author : James K. Hallenburg
language : en
Publisher: CRC Press
Release Date : 2020-02-03
Standard Methods Of Geophysical Formation Evaluation written by James K. Hallenburg and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-03 with Science categories.
These three works cover the entire field of formation evaluation, from basic concepts and theories, through standard methods used by the petroleum industry, on to new and exciting applications in environmental science and engineering, hydrogeology, and other fields. Designed to be used individually or as a set, these volumes represent the first comprehensive assessment of all exploration methodologies. No other books offer the breadth of information and range of applications available in this set.