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in creator/contributor: "Ramey, H.J. Jr."

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Proceedings fourth workshop geothermal reservoir engineering

Forty-three papers are included. Five papers were abstracted previously. Separate abstracts were prepared for thirty-eight. (MHR)

Date: January 1, 1978

Creator: Kruger, P. & Ramey, H. J., Jr.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Multiphase, Multicomponent Compressibility in Geothermal Reservoir Engineering

Coefficients of compressibilities below the bubble point were computer with a thermodynamic model for single and multicomponent systems. Results showed coefficients of compressibility below the bubble point larger than the gas coefficient of compressibility at the same conditions. Two-phase compressibilities computed in the conventional way are underestimated and may lead to errors in reserve estimation and well test analysis. 10 refs., 9 figs.

Date: January 20, 1987

Creator: Macias-Chapa, L. & Ramey, H. J., Jr.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A finite difference model for free surface gravity drainage

The unconfined gravity flow of liquid with a free surface into a well is a classical well test problem which has not been well understood by either hydrologists or petroleum engineers. Paradigms have led many authors to treat an incompressible flow as compressible flow to justify the delayed yield behavior of a time-drawdown test. A finite-difference model has been developed to simulate the free surface gravity flow of an unconfined single phase, infinitely large reservoir into a well. The mode… more

Date: September 1, 1993

Creator: Couri, F. R. & Ramey, H. J. Jr.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Drawdown behavior of gravity drainage wells

An analytical solution for drawdown in gravity drainage wells is developed. The free-surface flow is viewed as incompressible, and anisotropy effects are included. The well is a line source well, and the reservoir is infinitely large. The model is valid for small drawdowns. The uniform wellbore potential inner boundary condition is modelled using the proper Green`s function. The discontinuity at the wellbore is solved by introducing a finite skin radius, and the formulation produces a seepage f… more

Date: October 1, 1993

Creator: Aasen, J. A. & Ramey, H. J. Jr.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

SUPRI heavy oil research program. Fourteenth annual report, October 1, 1989--September 30, 1990

The 14th Annual Report of the SUPRI Heavy Oil Research Program includes discussion of the following topics: (1) A Study of End Effects in Displacement Experiments; (2) Cat Scan Status Report; (3) Modifying In-situ Combustion with Metallic Additives; (4) Kinetics of Combustion; (5) Study of Residual Oil Saturation for Steam Injection and Fuel Concentration for In-Situ Combustion; (6) Analysis of Transient Foam Flow in 1-D Porous Media with Computed Tomography; (7) Steam-Foam Studies in the Prese… more

Date: December 1, 1991

Creator: Aziz, K.; Ramey, H. J. Jr. & Castanier, L. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Decline Curve Analysis for Infinite Double-Porosity Systems Without Wellbore Skin

This paper presents a transient pressure analysis method for analyzing the rate decline of a constant pressure well producing in an infinite double-porosity reservoir, without wellbore skin. This analysis method may be used to interpret well test rate data, and to compute the rate behavior of an infinitely acting reservoir that is being produced at constant pressure. The development of the pseudo steady state log-log type curve Is presented along with a hypothetical example of its use. This typ… more

Date: January 22, 1985

Creator: Sageev, A.; Da Prat, G. & Ramey, H. J., Jr.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Steam distillation effect and oil quality change during steam injection

Steam distillation is an important mechanism which reduces residual oil saturation during steam injection. It may be the main recovery mechanism in steamflooding of light oil reservoirs. As light components are distilled the residual (initial) oil, the residuum becomes heavier. Mixing the distilled components with the initial oil results in a lighter produced oil. A general method has been developed to compute steam distillation yield and to quantify oil quality changes during steam injection. … more

Date: January 1, 1992

Creator: Lim, K. T.; Ramey, H. J. Jr. & Brigham, W. E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Geothermal research and development program. Second annual technical report, July 1, 1991--June 30, 1992

Progress is reported on the following projects: adsorption of water vapor on reservoir rocks, drawdown and buildup pressure analysis in multiwell reservoirs, adsorption parameters from experimental data, tritium tracer movement at the Geysers, adsorption modeling, and effects of earth tides on downhole pressures.

Date: October 8, 1992

Creator: Ramey, H. J. Jr.; Horne, R. N. & Miller, F. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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SUPRI Heavy Oil Research Program, SUPRI TR 85. Annual report, October 1, 1990--September 30, 1991

This report concerns progress made during the 1990--1991 fiscal year. Information is given an the following projects: (1) A Study of End Effects in Displacement Experiments; (2) Kinetics of In-Situ Combustion; (3) In-Situ Combustion with Metallic Additives; (4) Steam-Foam Studies in the Presence of Residual Oil; (5) Characterization of Surfactants in the Presence of Oil for Steam-Foam Applications; (6) CT Imaging of Steam and Steam Foam Laboratory Experiments; (7) Microvisualization of Foam Flo… more

Date: May 1, 1992

Creator: Brigham, W. E.; Ramey, H. J. Jr. & Castanier, L. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Second Workshop Geothermal Reservoir Engineering: Proceedings

The Arab oil embargo of 1973 focused national attention on energy problems. A national focus on development of energy sources alternative to consumption of hydrocarbons led to the initiation of research studies of reservoir engineering of geothermal systems, funded by the National Science Foundation. At that time it appeared that only two significant reservoir engineering studies of geothermal reservoirs had been completed. Many meetings concerning development of geothermal resources were held … more

Date: December 3, 1976

Creator: Kruger, P. & Ramey, H. J., Jr.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Proceedings of the Workshop on Geothermal Reservoir Engineering: 1977

The Third Workshop on Geothermal Reservoir Engineering convened at Stanford University on December 14, 1977, with 104 attendees from six nations. In keeping with the recommendations expressed by the participants at the Second Workshop, the format of the Workshop was retained, with three days of technical sessions devoted to reservoir physics, well and reservoir testing, field development, and mathematical modeling of geothermal reservoirs. The program presented 33 technical papers, summaries of… more

Date: December 15, 1977

Creator: Ramey, H. J., Jr. & Kruger, P. (eds.)

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Kinetics of in situ combustion. SUPRI TR 91

Oxidation kinetic experiments with various crude oil types show two reaction peaks at about 250{degree}C (482{degree}F) and 400{degree}C (725{degree}F). These experiments lead to the conclusion that the fuel during high temperature oxidation is an oxygenated hydrocarbon. A new oxidation reaction model has been developed which includes two partially-overlapping reactions: namely, low-temperature oxidation followed by high-temperature oxidation. For the fuel oxidation reaction, the new model incl… more

Date: July 1, 1993

Creator: Mamora, D. D.; Ramey, H. J. Jr.; Brigham, W. E. & Castanier, L. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Stanford Geothermal Program, reservoir and injection technology. Fourth annual report

This 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)

Date: December 1, 1988

Creator: Horne, R.; Ramey, H. J. Jr.; Miller, F. G.; Brigham, W. E. & Kruger, P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Sixth Workshop on Geothermal Reservoir Engineering: Proceedings

INTRODUCTION TO THE PROCEEDINGS OF THE SIXTH GEOTHERMAL RESERVOIR ENGINEERING WORKSHOP, STANFORD GEOTHERMAL PROGRAM Henry J. Ramey, Jr., and Paul Kruger Co-Principal Investigators Ian G. Donaldson Program Manager Stanford Geothermal Program The Sixth Workshop on Geothermal Reservoir Engineering convened at Stanford University on December 16, 1980. As with previous Workshops the attendance was around 100 with a significant participation from countries other than the United States (18 attendees f… more

Date: December 18, 1980

Creator: Ramey, H. J., Jr. & Kruger, P.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Fourteenth workshop geothermal reservoir engineering: Proceedings

The Fourteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 24--26, 1989. Major areas of discussion include: (1) well testing; (2) various field results; (3) geoscience; (4) geochemistry; (5) reinjection; (6) hot dry rock; and (7) numerical modelling. For these workshop proceedings, individual papers are processed separately for the Energy Data Base.

Date: January 1, 1989

Creator: Ramey, H. J., Jr.; Kruger, P.; Horne, R. N.; Miller, F. G.; Brigham, W. E. & Cook, J. W.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Fourteenth workshop geothermal reservoir engineering: Proceedings

Date: December 31, 1989

Creator: Ramey, H. J. Jr.; Kruger, P.; Horne, R. N.; Miller, F. G.; Brigham, W. E. & Cook, J. W.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Ninth Workshop on Geothermal Reservoir Engineering: Proceedings

The attendance at the Workshop was similar to last year's with 123 registered participants of which 22 represented 8 foreign countries. A record number of technical papers (about 60) were submitted for presentation at the Workshop. The Program Committee, therefore, decided to have several parallel sessions to accommodate most of the papers. This format proved unpopular and will not be repeated. Many of the participants felt that the Workshop lost some of its unique qualities by having parallel … more

Date: December 15, 1983

Creator: Ramey, H. J., Jr.; Kruger, P.; Miller, F.G.; Horne, R.N.; Brigham, W.E. & Gudmundsson, J.S.

Item Type: Article

Partner: UNT Libraries Government Documents Department