Analysis of Tracer and Thermal Transients During Reinjection
Author: Ibrahim Kocabas
Publisher:
Published: 1989
Total Pages: 252
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Ibrahim Kocabas
Publisher:
Published: 1989
Total Pages: 252
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1989
Total Pages: 125
ISBN-13:
DOWNLOAD EBOOKThis work studied tracer and thermal transients during reinjection in geothermal reserviors and developed a new technique which combines the results from interwell tracer tests and thermal injection-backflow tests to estimate the thermal breakthrough times. Tracer tests are essential to determine the degree of connectivity between the injection wells and the producing wells. To analyze the tracer return profiles quantitatively, we employed three mathematical models namely, the convection-dispersion (CD) model, matrix diffusion (MD) model, and the Avodnin (AD) model, which were developed to study tracer and heat transport in a single vertical fracture. We considered three types of tracer tests namely, interwell tracer tests without recirculation, interwell tracer tests with recirculation, and injection-backflow tracer tests. To estimate the model parameters, we used a nonlinear regression program to match tracer return profiles to the solutions.
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Publisher:
Published: 1988
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKThis annual report of the Stanford Geothermal Program presents major projects in reservoir and injection technology. The four include: (1) an application of the boundary element method to front tracking and pressure transient testing; (2) determination of fracture aperture, a multi-tracer approach; (3) an analysis of tracer and thermal transients during reinjection; and, (4) pressure transient modeling of a non-uniformly fractured reservoir. (BN).
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Published: 1995
Total Pages: 782
ISBN-13:
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Publisher:
Published: 1992
Total Pages: 1496
ISBN-13:
DOWNLOAD EBOOKAuthor: Richard E. Thomson
Publisher: Elsevier
Published: 2024-07-16
Total Pages: 892
ISBN-13: 0323993133
DOWNLOAD EBOOKData Analysis Methods in Physical Oceanography, Fourth Edition provides a practical reference to established and modern data analysis techniques in earth and ocean sciences. In five sections, the book addresses data acquisition and recording, data processing and presentation, statistical methods and error handling, analysis of spatial data fields, and time series analysis methods. The updated edition includes new information on autonomous platforms and new analysis tools such as "deep learning and convolutional neural networks. A section on extreme value statistics has been added, and the section on wavelet analysis has been expanded. This book brings together relevant techniques and references recent papers where these techniques have been trialed. In addition, it presents valuable examples using physical oceanography data. For students, the sections on data acquisition are useful for a compilation of all the measurement methods. - Includes content co-authored by scientists from academia and industry, both of whom have more than 30 years of experience in oceanographic research and field work - Provides boxed worked examples that address typical data analysis problems, including examples with computer code (e.g., python code, MATLAB code) - Presents brief summaries at the end of the more difficult sections to help readers looking for foundational information
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Published: 1987
Total Pages:
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DOWNLOAD EBOOKThis paper discusses the use of tracers as a reservoir engineering tool in fractured geothermal reservoirs. The principle concern in injecting cooler spent fluids into a fractured reservoir is that the fluids may move through high permeability channels and return to the production wells after contacting a relatively small volume of rock. As a consequence of this rapid transport, the fluids will be only partially reheated and after a short period time will effectively mine the heat from the limited volume of rock. The production wells will then experience a rapid and premature reduction in thermal output. Tracers can be used to infer the existence of high mobility conduits between injection and production wells and to monitor chemical changes of an injected fluid. Since tracer arrival precedes thermal breakthrough, tracer tests are a very useful forecasting tool.