Physical Model of a Fractured Reservoir

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The objectives of the physical modeling effort are to: (1) evaluate injection-backflow testing for fractured reservoirs under conditions of known reservoir parameters (porosity, fracture width, etc.); (2) study the mechanisms controlling solute transport in fracture systems; and (3) provide data for validation of numerical models that explicitly simulate solute migration in fracture systems. The fracture network is 0.57-m wide, 1.7-m long, and consists of two sets of fractures at right angles to one another with a fracture spacing of 10.2 cm. A series of injection-backflow tests, similar to those performed at the Raft River Geothermal field, was conducted. These included ... continued below

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305-309

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Hull, Laurence C. & Koslow, Karen N. December 15, 1983.

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Description

The objectives of the physical modeling effort are to: (1) evaluate injection-backflow testing for fractured reservoirs under conditions of known reservoir parameters (porosity, fracture width, etc.); (2) study the mechanisms controlling solute transport in fracture systems; and (3) provide data for validation of numerical models that explicitly simulate solute migration in fracture systems. The fracture network is 0.57-m wide, 1.7-m long, and consists of two sets of fractures at right angles to one another with a fracture spacing of 10.2 cm. A series of injection-backflow tests, similar to those performed at the Raft River Geothermal field, was conducted. These included variable volume injection and injection-backflow tests with varying quiescent periods between injection and backflow. This latter series of tests was conducted with a range of flow fields passing through the model. recovery is related to the flow field in the physical model and model parameters. Longer quiescent times and greater flow fields result in a lower tracer recovery. A plot of the fractional tracer recovery against quiescent time results in a straight line. This relationship, combined with classical reservoir engineering data, can be used to predict aquifer flow rate and porosity from known injection volumes and tracer recovery.

Physical Description

305-309

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  • Proceedings, Ninth Workshop Geothermal Reservoir Engineering, Stanford University, Stanford Calif., December 13-15, 1983

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  • Report No.: SGP-TR-74-40
  • Grant Number: AT03-80SF11459
  • Office of Scientific & Technical Information Report Number: 889718
  • Archival Resource Key: ark:/67531/metadc874154

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 15, 1983

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  • Sept. 21, 2016, 2:29 a.m.

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  • Oct. 31, 2016, 7:04 p.m.

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Hull, Laurence C. & Koslow, Karen N. Physical Model of a Fractured Reservoir, article, December 15, 1983; United States. (digital.library.unt.edu/ark:/67531/metadc874154/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.