Download or read book Cross borehole Electromagnetic Tomography Using a Stepped Frequency Source written by Albert Keng Howe Thong and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radon Transforms and Tomography written by Eric Todd Quinto and published by American Mathematical Soc.. This book was released on 2001 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most exciting features of the fields of Radon transforms and tomography is the strong relationship between high-level pure mathematics and applications to areas such as medical imaging and industrial nondestructive evaluation. The proceedings featured in this volume bring together fundamental research articles in the major areas of Radon transforms and tomography. This volume includes expository papers that are of special interest to beginners as well as advanced researchers. Topics include local tomography and wavelets, Lambda tomography and related methods, tomographic methods in RADAR, ultrasound, Radon transforms and differential equations, and the Pompeiu problem. The major themes in Radon transforms and tomography are represented among the research articles. Pure mathematical themes include vector tomography, microlocal analysis, twistor theory, Lie theory, wavelets, harmonic analysis, and distribution theory. The applied articles employ high-quality pure mathematics to solve important practical problems. Effective scanning geometries are developed and tested for a NASA wind tunnel. Algorithms for limited electromagnetic tomographic data and for impedance imaging are developed and tested. Range theorems are proposed to diagnose problems with tomography scanners. Principles are given for the design of X-ray tomography reconstruction algorithms, and numerical examples are provided. This volume offers readers a comprehensive source of fundamental research useful to both beginners and advanced researchers in the fields.
Download or read book Low Frequency Electromagnetic Cross borehole Imaging written by M. Pihlman and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Audio frequency Electromagnetic Tomography for Reservoir Evaluation written by Chʻiang Chou and published by . This book was released on 1989 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inverse Problems and Imaging written by Luis L. Bonilla and published by Springer. This book was released on 2009-06-19 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays we are facing numerous and important imaging problems: nondestructive testing of materials, monitoring of industrial processes, enhancement of oil production by efficient reservoir characterization, emerging developments in noninvasive imaging techniques for medical purposes - computerized tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), X-ray and ultrasound tomography, etc. In the CIME Summer School on Imaging (Martina Franca, Italy 2002), leading experts in mathematical techniques and applications presented broad and useful introductions for non-experts and practitioners alike to many aspects of this exciting field. The volume contains part of the above lectures completed and updated by additional contributions on other related topics.
Download or read book Ground Penetrating Radar in Sediments written by C. S. Bristow and published by Geological Society of London. This book was released on 2003 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Included in this book are practical guidelines for data collection and interpretation, from antennae configurations to sequence stratigraphy, together with new advances such as vertical radar profiles and 3-D GPR imaging for hydrocarbon reservoir modelling, designed to assist new and veteran users get the most from GPR. Case studies in this book detail GPR investigations in a wide array of sedimentary environments including alluvial fans, braided rivers, spits, beaches, sand dunes, lakes, bogs, and floodplains.
Download or read book Borehole Electromagnetic Telemetry System written by Jiefu Chen and published by Springer. This book was released on 2019-06-20 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the theory, numerical modeling, and applications of a borehole electromagnetic telemetry system used for wireless communication between the downhole tool and the surface control center during oilfield drilling. The authors begin by introducing borehole electromagnetic telemetry and explaining each part of the system with schematics and illustrations. They describe the working principle and compare it with other borehole wireless communication methods, such as mud pulse telemetry. They then address 2D and 3D electromagnetic telemetry modelling, listing previous 2D and 3D modeling methods and detailing the advantages and limitations, before discussing their recent work on a novel layered finite element method for 2D electromagnetic telemetry modelling, and on 3D electromagnetic modelling based on integral equation, thin wire kernel, and layered medium Green’s functions. Lastly, the authors show applications of electromagnetic telemetry, including single well borehole wireless communication and cross well communication in pad drilling. This includes photos, figures, and field data from real oilfield jobs. This book is a useful reference for drilling engineers, well logging tool research and development scientists and researchers, as well as for students in the areas of petroleum engineering and electrical engineering.
Download or read book Cross Borehole Electromagnetic Tomography Scoping Study and Literature Review written by P. B. Wilkinson and published by . This book was released on 2005 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cross borehole and Surface to borehole Electromagnetic Induction for Reservoir Characterization written by United States. Dept. of Energy and published by . This book was released on 1991 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cross borehole Fracture Mapping Using Electromagnetic Geotomography written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lawrence Livermore National Laboratory is evaluating high resolution geophysical techniques for characterization of nuclear waste repository sites. This report presents the results of the first phase of this project. We describe the evaluation of a new geophysical technique used to map fractures remotely between boreholes: electromagnetic geotomography used in conjunction with water tracers. Salt water is forced into the fractured rock mass, attenuating the high frequency electromagnetic waves used for probing. The locations in the rock where the salt water has induced signal losses are then mapped by geotomography. An experiment using this technique has been performed near Oracle, Arizona, in a granitic rock mass. The data obtained were reduced to gray level images, which show the calculated signal transmission properties of the rock mass. We analyzed these images and compared them with borehole geophysical data: neutron logs, acoustic velocity logs, caliper logs, and acoustic televiewer logs. Comparisons between the images and the borehole geophysical data suggest that geotomography has merit when used to map fracture in granite. Image anomalies, which can be indicative of fracturing along the borehole walls, usually coincide with geophysical log anomalies. Under the conditions of the Oracle experiment, available data indicate that clusters of fracture zones were detected. Single fractures were not detected. The thickness of the smallest recognizable fractured zone was 0.6 m (2 ft).
Download or read book ISRM Regional Symposium Advancing Rock Mechanics Frontiers to Meet the Challenges of 21st Century 24 27 September 2002 New Delhi India written by and published by . This book was released on 2002 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: With special reference to India.
Download or read book Laboratory Cross borehole Imaging of Unconsolidated Sediments written by and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-borehole elastic wave tomography offers great potential for subsurface imaging of sediments and associated fluids. Using this method we created a high resolution tomographic image of velocity structure obtained from laboratory generated compressional wave traveltimes in unconsolidated sediments. The image shows three layers and a water filled container located in the center of the middle layer. An image obtained from computer simulated traveltimes shows good agreement with the image from laboratory data. Source frequency was 135 kHz, velocities ranged from 1.4 to 1.8 km/s, and thus wavelengths were 1.0 to 1.4 cm. Distance between boreholes was 30 cm with about 60 cm of vertical coverage. Over 900 raypaths were used in the image. The seismic quality factor Q ranged from 11 to 25 in the two saturated sediments. Our immediate application of this method is to ecological problems. However, such a method could be applied to small scale hydrological problems and other areas of interest where fluid content is of interest. 2 refs., 3 figs., 1 tab.
Download or read book A 500kHz 5MHz CW Stepped Frequency Borehole Tomographic Imaging System written by Adam Rhett Isaacson and published by . This book was released on 2001 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts written by and published by . This book was released on 1995-03 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Leading Edge written by and published by . This book was released on 1999-08 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summaries of Physical Research in the Geosciences written by and published by . This book was released on 1988-12 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
