An inverse problem solution to the flow of tracers in naturally fractured reservoirs Metadata
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Title
- Main Title An inverse problem solution to the flow of tracers in naturally fractured reservoirs
- Serial Title Proceedings of the Workshop on Geothermal Reservoir Engineering
Creator
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Author: S., Jetzabeth RamirezCreator Type: Personal
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Author: V., Fernando SamaniegoCreator Type: Personal
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Author: Rodriguez, FernandoCreator Type: Personal
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Author: R., Jesus RiveraCreator Type: Personal
Contributor
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Sponsor: United States. Department of Energy.Contributor Type: Organization
Publisher
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Name: Universidad Nacional Autonoma de Mexico, Facultad de Ingenieria, MXPlace of Publication: United States
Date
- Creation: 1994-01-20
Language
- English
Description
- Content Description: This paper presents a solution for the inverse problem to the flow of tracers in naturally fractured reservoirs. The models considered include linear flow in vertical fractures, radial flow in horizontal fractures, and cubic block matrix-fracture geometry. The Rosenbrock method for nonlinear regression used in this study, allowed the estimation of up to six parameters for the cubic block matrix fracture geometry. The nonlinear regression for the three cases was carefully tested against syntetical tracer concentration responses affected by random noise, with the objective of simulating as close as possible step injection field data. Results were obtained within 95 percent confidence limits. The sensitivity of the inverse problem solution on the main parameters that describe this flow problem was investigated. The main features of the nonlinear regression program used in this study are also discussed. The procedure of this study can be applied to interpret tracer tests in naturally fractured reservoirs, allowing the estimation of fracture and matrix parameters of practical interest (longitudinal fracture dispersivity alpha, matrix porosity phi2, fracture half-width w, matrix block size d, matrix diffusion coefficient D2 and the adsorption constant kd). The methodology of this work offers a practical alternative for tracer flow tests interpretation to other techniques.
- Physical Description: 35-42
Subject
- Keyword: Geothermal Legacy
Source
- Conference: Proceedings, nineteenth workshop on geothermal reservoir engineering, Stanford University, Stanford, CA, January 18-20, 1994
Collection
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Name: Office of Scientific & Technical Information Technical ReportsCode: OSTI
Institution
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Name: UNT Libraries Government Documents DepartmentCode: UNTGD
Resource Type
- Article
Format
- Text
Identifier
- Report No.: SGP-TR-147-6
- Office of Scientific & Technical Information Report Number: 889117
- Archival Resource Key: ark:/67531/metadc884931