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High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the second 3 months of the first year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs.'' The development of an automatic technique for analytical solution of one-dimensional gas flow problems with volume change on mixing is described. The aim of this work is to develop a set of ultra-fast compositional simulation tools that can be used to make field-scale predictions of the performance of gas inje… more
Date: March 31, 2001
Creator: Orr, Franklin M., Jr.
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High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the third 3 quarter of the first year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs.'' A simple theoretical formulation of vertical flow with capillary/gravity equilibrium is described. Also reported are results of experimental measurements for the same systems. The results reported indicate that displacement behavior is strongly affected by the interfacial tension of phases that form on the tie… more
Date: June 30, 2001
Creator: Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the second quarter of the third year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs''. This report presents results of an investigation of the effects of variation in interfacial tension (IFT) on three-phase relative permeability. We report experimental results that demonstrate the effect of low IFT between two of three phases on the three-phase relative permeabilities. In order to create three-p… more
Date: March 31, 2003
Creator: Franklin M. Orr, Jr.
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High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report presents a detailed analysis of the development of miscibility during gas cycling in condensates and the formation of condensate banks at the leading edge of the displacement front. Dispersion-free, semi-analytical one-dimensional (1D) calculations are presented for enhanced condensate recovery by gas injection. The semi-analytical approach allows investigation of the possible formation of condensate banks (often at saturations that exceed the residual liquid saturation) and also al… more
Date: June 30, 2003
Creator: Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: Gas injection in oil reservoirs offers huge potential for improved oil recovery. However, successful design of a gas injection process requires a detailed understanding of a variety of different significant processes, including the phase behavior of multicomponent mixtures and the approach to multi-contact miscibility in the reservoir, the flow of oil, water and gas underground, and the interaction of phase behavior reservoir heterogeneity and gravity on overall performance at the field scale. … more
Date: December 31, 2000
Creator: Hewett, Thomas A. & Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the third quarter of the second year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs''. High order finite difference schemes for one-dimensional, two-phase, multicomponent displacements are investigated. Numerical tests are run using a three component fluid description for a case when the interaction between phase behavior and flow is strong. Some currently used total variation diminishing (TVD) m… more
Date: June 30, 2002
Creator: Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the first quarter of the second year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs''. The application of the analytical theory for gas injection processes, including the effects of volume change on mixing, has up to now been limited to fully self-sharpening systems, systems where all solution segments that connect the key tie lines present in the displacement are shock fronts. In the following r… more
Date: December 31, 2001
Creator: Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: In this report we present an approach for accurate and consistent implementation of gravity effects in compositional streamline simulation. The approach is based on an operator-splitting technique, successfully applied in streamline simulation of black-oil models. The method is demonstrated to conserve mass. Its application adds only marginally to the overall CPU requirement. We provide a detailed description of the approach to incorporate gravity effects and demonstrate the efficiency of compo… more
Date: December 31, 2003
Creator: Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the first quarter of the third year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs''. In this report we present an application of compositional streamline simulation in modeling enhanced condensate recovery via gas injection. These processes are inherently compositional and detailed compositional fluid descriptions must be use to represent the flow behavior accurately. Compositional streamline si… more
Date: December 31, 2002
Creator: Franklin M. Orr, Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the second quarter of the second year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs''. A three-dimensional streamline simulator, developed at Stanford University, has been modified in order to use analytical one-dimensional dispersion-free solutions to multicomponent gas injection processes. The use of analytical one-dimensional solutions in combination with streamline simulation is demonstrated… more
Date: March 31, 2002
Creator: Orr, Franklin M., Jr.
open access

High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: This report outlines progress in the first quarter of the extension of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs''. This report presents experimental results that demonstrate combined scaling effects of viscous, capillary, and gravity crossflow mechanisms that apply to the situations in which streamline models are used. We designed and ran a series of experiments to investigate combined effects of capillary, viscous, and gravi… more
Date: September 30, 2003
Creator: Orr, Franklin M., Jr.
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