Design and Construction of an Experiment for Two-phase Flow in Fractured Porou [i.e. Porous] Media

Design and Construction of an Experiment for Two-phase Flow in Fractured Porou [i.e. Porous] Media PDF Author: Rafael E. G. Ayala
Publisher:
ISBN:
Category : Porous materials
Languages : en
Pages : 130

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Design and Construction of an Experiment for Two-phase Flow in Fractured Porou [i.e. Porous] Media

Design and Construction of an Experiment for Two-phase Flow in Fractured Porou [i.e. Porous] Media PDF Author: Rafael E. G. Ayala
Publisher:
ISBN:
Category : Porous materials
Languages : en
Pages : 130

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Design and Construction of an Experiment for Two-phase Flow in Fractured Porous Media

Design and Construction of an Experiment for Two-phase Flow in Fractured Porous Media PDF Author: Stanford University. Petroleum Research Institute
Publisher:
ISBN:
Category :
Languages : en
Pages : 108

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Design and Construction of an Experiment for Two-phase Flow in Fractured Porous Media

Design and Construction of an Experiment for Two-phase Flow in Fractured Porous Media PDF Author: Rafael Ernesto Guzman Ayala
Publisher:
ISBN:
Category :
Languages : en
Pages : 216

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Design and Construction of an Experiment for Two-phase Flow in Fractured Porous Media

Design and Construction of an Experiment for Two-phase Flow in Fractured Porous Media PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 108

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In numerical reservoir simulation naturally fractured reservoirs are commonly divided into matrix and fracture systems. The high permeability fractures are usually entirely responsible for flow between blocks and flow to the wells. The flow in these fractures is modeled using Darcy's law and its extension to multiphase flow by means of relative permeabilities. The influence and measurement of fracture relative permeability for two-phase flow in fractured porous media have not been studied extensively, and the few works presented in the literature are contradictory. Experimental and numerical work on two-phase flow in fractured porous media has been initiated. An apparatus for monitoring this type of flow was designed and constructed. It consists of an artificially fractured core inside an epoxy core holder, detailed pressure and effluent monitoring, saturation measurements by means of a CT-scanner and a computerized data acquisition system. The complete apparatus was assembled and tested at conditions similar to the conditions expected for the two-phase flow experiments. Fine grid simulations of the experimental setup-were performed in order to establish experimental conditions and to study the effects of several key variables. These variables include fracture relative permeability and fracture capillary pressure. The numerical computations show that the flow is dominated by capillary imbibition, and that fracture relative permeabilities have only a minor influence. High oil recoveries without water production are achieved due to effective water imbibition from the fracture to the matrix. When imbibition is absent, fracture relative permeabilities affect the flow behavior at early production times.

Experimental and Numerical Analysis of Two-phase Flow in Fractured Porous Media

Experimental and Numerical Analysis of Two-phase Flow in Fractured Porous Media PDF Author: Christian Høier
Publisher:
ISBN:
Category :
Languages : en
Pages : 80

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CT Measurements of Two-phase Flow in Fractured Porous Media

CT Measurements of Two-phase Flow in Fractured Porous Media PDF Author: Richard G. Hughes
Publisher:
ISBN:
Category : Porous materials
Languages : en
Pages : 57

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The simulation of flow in naturally fractured reservoirs commonly divides the reservoir into two continua - the matrix system and the fracture system. Flow equations are written presuming that the primary flow between grid blocks occurs through the fracture system and that the primary fluid storage is in the matrix system. The dual porosity formulation of the equations assumes that there is no flow between matrix blocks while the dual permeability formulation allows fluid movement between matrix blocks. Since most of the fluid storage is contained in the matrix, recovery is dominated by the transfer of fluid from the matrix to the high conductivity fractures. The physical mechanisms influencing this transfer have been evaluated primarily through numerical studies. Relatively few experimental studies have investigated the transfer mechanisms. Early studies focused on the prediction of reservoir recoveries from the results of scaled experiments on single reservoir blocks. Recent experiments have investigated some of the mechanisms that are dominant in gravity drainage situations and in small block imbibition displacements. The mechanisms active in multiphase flow in fractured media need to be further illuminated, since some of the experimental results appear to be contradictory. This report describes the design, construction, and preliminary results of an experiment that studies imbibition displacement in two fracture blocks. Multiphase (oil/water) displacements will be conducted at the same rate on three core configurations. The configurations are a compact core, a two-block system with a 1 mm spacer between the blocks, and a two-block system with no spacer. The blocks are sealed in epoxy so that saturation measurements can be made throughout the displacement experiments using a Computed Tomography (CT) scanner.

Energy Research Abstracts

Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1032

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Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

CT Measurements of Two-Phase Flow in Fractured Porous Media

CT Measurements of Two-Phase Flow in Fractured Porous Media PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 60

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Book Description
This report describes the design, construction, and preliminary results of an experiment that studies imbibition displacement in two fracture blocks. Multiphase (oil/water) displacements will be conducted at the same rate on three core configurations. The configurations are a compact core, a two-block system with a 1 mm spacer between the blocks, and a two-block system with no spacer. The blocks are sealed in epoxy so that saturation measurements can be made throughout the displacement experiments using a Computed Tomography (CT) scanner. Preliminary results are presented from a water/air experiment. These results suggest that it is incorrect to assume negligible capillary continuity between matrix blocks as is often done.

Proceedings

Proceedings PDF Author:
Publisher:
ISBN:
Category : Energy policy
Languages : en
Pages : 374

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1346

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