Chemical Engineering Commons^™

Unsteady-State Spherical Flow With Storage And Skin., Jeffrey A. Joseph, Leonard Koederitz

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

This paper presents short-time interpretation methods for radial-spherical (or radial-hemispherical) flow in homogeneous and isotropic reservoirs inclusive of wellbore storage, wellbore phase redistribution, and damage skin effects. New dimensionless groups are introduced to facilitate the classic transformation from radial flow in the sphere to linear flow in the rod. Analytical expressions, type curves (in log-log and semi log format), and tabulated solutions are presented, both in terms of pressure and rate, for all flow problems considered. A new empirical equation to estimate the duration of wellbore and near-wellbore effects under spherical flow is also proposed.

Approximate Tolerance Limits And Confidence Limits On Reliability For The Gamma Distribution, Lee J. Bain, Max Engelhardt, Wei Kei Shiue

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

Unsteady-State Cylindrical, Spherical And Linear Flow In Porous Media, Allan Jeffrey Anthony Joseph

Doctoral Dissertations

"The general problem of unsteady flow phenomena in porous media as considered in this investigation. Emphasis was placed upon the short-term flow characteristics within cylindrical, spherical and linear reservoir geometries, and practical analysis methods were developed for each problem. Additionally, nonlinear unsteady flow behavior in infinite reservoirs was considered. Each solution obtained could optionally be implemented by hand or computer, and several FORTRAN subprograms were also presented.

At present, the only way to analyze pressure transient data prior to the development of the "semi log straight line" is by type curve matching techniques. However, this study indicated that a reliable …

Evaporite Diapirs In The La Popa Basin, Nuevo Leon, Mexico., Robert C. Laudon

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Reconnaissance mapping and stratigraphic work in the La Popa basin of Neuvo Leon, northern Mexico, have revealed two large structural features with cores of gypsum and anhydrite at the surface. These features are interpreted to be the surface expression of evaporite diapirs. Geostatic loading is considered to be the most important mechanism for emplacement of the domes. -from Author

Shear Characteristics Of Motor Oils Conforming To The American Petroleum Institute's 1981 Engine Service Classification, D. Joseph Clausen

Graduate Research Papers

The problem was to determine if shear (slipperiness) characteristics differ between various SF motor oils. Oils tested met SAE (Society of Automotive Engineers) lOw-40 viscosity requirements, and API (American Petroleum Institute) engine service classification requirements for 1981 SF quality motor oils.

Four basic types of oil were tested: (a) mineral; (b) synthetic; (c) friction modified; and (d) extended drain. A gravity powered device was designed and used as a testing apparatus to measure force needed to pull a weight across a lubricated surface.

Findings indicated that friction modified oils (Pennzoil P-Z-L and Arcographite) were the most slippery. Other oils tested, …

Sequential Probability Ratio Tests For The Shape Parameter Of A Nonhomogeneous Poisson Process, Lee J. Bain, Max Engelhardt

Mathematics and Statistics Faculty Research & Creative Works

Sequential probability ratio tests for the shape parameter of one or more nonhomogeneous Poisson processes, with power intensity functions, are provided. The tests can be performed when the scale parameter is an unknown nuisance parameter; the effective loss of not knowing the scale parameter is one observation per process. The resulting tests can be expressed in terms of the maximum likelihood estimators of the shape parameters for the usual fixed sample procedure. A further advantage of the present approach is that the scale parameters for different processes, in the multiple sample procedures, need not be equal. Approximations for the operating …

Geotechnical Evaluation Of The Support Of Coal Pillars In Underground Coal Mines., John D. Rockaway, Richard W. Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Study Described Was Accomplished through an Investigation of Both the Intact and Insitu Geotechnical Properties of the Sub coal Strata and through the Installation of Floor Movement Monitoring Instrumentation. the Method of Bearing Capacity Analysis Developed by A. S. Vesic Was Used to Define Pillar Stability. This Method Includes Provisions for Taking into Consideration a Two-Layer System Such as Assumed for Mine Conditions Where a Weak Underclay overlies Firmer Strata.

An Applied Approach To Automatic Pressure Transient Analysis., Jeffrey Allan Joseph

Masters Theses

"A generalized digital approach to pressure transient (well-test) analysis is developed. The model is rigorously applicable to flow tests (pressure drawdown or injectivity of Newtonian liquids), and to pressure buildup or falloff tests provided the f low time prior to shut-in is large compared to the total shut-in time. However, buildup or falloff data may s till be analyzed if the above conditions are not satisfied, using the principles of superposition/desuperposition.

When plotted on logarithmic coordinates, pressure transient data generally assume a characteristic shape, indicative of flow behavior. Accurate computer analysis of this data requires its representation in concise mathematical …

The Price Of Oil, R. W. Clack

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

An examination of major forces in the petroleum market with primary emphasis on the decade of the 1970s. The market force (s) responsible for the factor-of-ten increase in the price of crude oil is isolated, if not identified. The market's "message" is set forth for energy policy planners.

The Oil Industry And Antitrust Merger Policy, Pauline Weber

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This paper examines the trends in merger activity in the petroleum industry in light of over-all merger activity and of the Justice Department's merger guidelines. Supreme Court precedents and economic conditions within the petroleum area are discussed. Some conclusions concerning the Justice Department's merger policy are included.

A Development Of Regression Models For Predicting Two-Phase Relative Permeability In Consolidated Rock, Mehdi Honarpour

Doctoral Dissertations

"The primary objective of this study was the development of prediction equations for the water-oil imbibition relative permeability and gas-oil drainage relative permeability from experimental data.

Laboratory relative permeability data along with the corresponding rock and fluid properties were collected, and stepwise linear regression analysis was applied. Relative permeability models were developed in terms of rock and fluid properties.

The prediction models were tested against laboratory values and previously published correlations. It was found that the models developed in this study yield results that are generally in better agreement with experimental values than the previously published correlations"--Abstract p. ii

Simplifying Lubricants For Farm Machinery, R A. Platt

Journal of the Department of Agriculture, Western Australia, Series 4

All moving parts on machinery needs lubrication. With the rapid development in farm machinery and its attendant sophistifications, the stresses imposed on the lubricants have also increased.

This article looks at some of the changes in requirements and developments in lubricants available.

Nucleate Boiling Heat Transfer Of Liquid Nitrogen From Plasma Deposited Polymer Coated Surfaces, Donald L. Warner, Efton Park, Kenneth G. Mayhan

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

In certain cases, nucleate boiling heat transfer from polymerized tetrafluoroethylene coated surfaces was more than five times the rate of heat transfer found for uncoated surfaces at a given temperature difference. It was also found that for the polymer coated surfaces the transition from nucleate to film boiling was much slower than for uncoated surfaces. © 1978.

Economic Incentives In The Exploration, Extraction And Refining Of Crude Oil, Angelos Pagoulatos, David Debertin, Emilio Pagoulatos

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

A simultaneous econometric model consisting of 37 stochastic equations and 3 identities which captures the decisions affecting the supply of new discoveries, the size of proven reserves, the production out of reserves, the demands and supplies of refined products and the imports of crude oil and refined products, is estimated. Simulation with the econometric model analyzed the effect of alternative pricing policies on domestic oil production, consumption and imports.

Theoretical And Empirical Approaches To The Analysis Of Opec, Albert L. Danielsen

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Formal theoretical models of world oil price determination have been developed in recent years. In addition, some empirical estimates of expected future prices have been proposed. This paper explains how exhaustible resource and cartel theory are integrated into the opitmal control framework. Some empirical studies in the optimal control tradition are surveyed and evaluated.

The Energy Needs Of The Developing Countries, Vaman Rao

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The energy needs of the developing countries are enormous. They will grow with the passage of time as the pace of economic development accelerates and those countries enter the industrial epoch. The sheer physical non-availability of coal and petroleum to most of them makes it obligatory to choose an unconventional resource as an energy-base. The nuclear fission is the only option now available which is feasible, less-expensive and plentiful. Solar and fusion may be the ultimate sources in the steady state, when appropriate technologies are developed.

4th Annual Umr-Dnr Conference On Energy -- Entire Proceedings, University Of Missouri--Rolla

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

No abstract provided.

The Operator’S Guide For Minimizing Energy Costs, Charles Dare, Frank A. Gerig

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The consumption of petroleum by transportation activities is increasing despite the finite limits on its supply. This paper concentrates on the motor vehicle driver, his driving habits, and guides to reduced fuel consumption which would enable the individual to curtail wasteful practices with respect to vehicle operation.

Systematic Implementation Of Local, State And Federal Regulations To Control Transportation And Land Use Can Reduce Energy Required For Transportation, J. Larry Josey, J. Edwin Clark

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Petroleum is available in limited amounts and the Transportation industry is currently using a giant share of the petroleum based fuel used in America. Ways are explored in this paper to reduce the amount of fuel needed to maintain mobility. Regulations on Transportation and Land Use are shown to be potential tools for fuel savings.

The Current Status Of The Canadian Coal Industry, Philip S. Martin

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Mineable reserves of coal are known to exist right across Canada and some 30 mines are currently operating in five provinces, plus one small mine in the Yukon. Total production in 1977 will a- mount to some 30 million short tons with a value of approximately $700 million, which will be a new record tonnage.

The Opec Oil-Pricing Policies, Vaman Rao

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The capital-theoretic model suggested for determining the price- quantity combinations does not hold in the case of most natural resources, including petroleum, since the inelastic demand function would vitiate the optimal solution. The specification of a dynamic demand function, with necessary, attributes, no doubt, results in a valid optimal solution in period t, but that could be achieved only at the cost of sub-optimal solution in other periods. If the OPEC starts behaving as a discriminating monopoly, instead of as a pure monopoly, the optimal solution is assured in all markets and in all time periods.

Recovery Of Oil From Oil Shale -- An Overall Technological Perspective, Abu Ahmad, Sayeed Hasan

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The hydrocarbon content of oil shale can be converted into liquid oil which is a possible energy resource for the future. Different aspects of shale oil recovery is briefly discussed. The technology of modified in situ oil shale retorting, which is receiving increasing attention for commercialization, is discussed in a little more detail.

Manufacturers' Responses To Fuel Supply Problems, Evelyn R. Rosenthal

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The progress of energy conservation in industry was investigated with the aim of identifying barriers to strong energy conservation efforts. One of these barriers proved to be fuel supply problems as exemplified by the natural gas shortage of 1976-77.

The Political Economy Of Opec, Loring Allen

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The Organization of Petroleum Exporting Countries (OPEC) is a part of the hard reality of the present and future energy position of the U. S. It burst upon the world scene in 1973 in response to long years of shabby treatment by the oil companies and oil-importing countries. Through cooperation in the exercise of their sovereignty over oil deposits, OPEC members have extracted increasing revenues through restricting production and raising price. Although serving its own interests, OPEC benefits also the rest of the world, even though its presence portends a shift in the world balance of power.

An Overview Of Potential Impacts Of Changing Petroleum Energy Prices On Grain Farms, Jean-Paul Chavas, James B. Kliebenstein

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Since the early 1970s world fossil fuel energy prices have risen dramatically. Assuming there is no significant breakthrough in en- ergy technology, the world will see further increases in energy prices. These changes will likely lead to economic adjustments in U. S. agriculture. A firm level linear programming model is used to evaluate what some of these adjustments could be on a Missouri grain farm. To obtain expected energy price affects on production mixes, energy prices are changed parametrically. Potential crop adjustments are from corn to single-crop soybeans to wheat as energy prices increase. Fertilization adjustments are from chemical to …

The Impact Of Regulation Upon The Oil And Gas Industries, Lee Carter

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

It is paradoxical that the oil and gas industries both ask for and resist the idea of regulation. Historic examples are given of how and why this is so. Since the Arab oil crisis of 1973, new and onerous rules for domestic producers have been introduced, first by improvization and more recently by a national energy plan. Both the good and bad features of the 1977 national energy plan are reviewed to generate words of commendation and words of warning about its effect on the oil and gas industries.

Theoretical And Experimental Investigation Of Oil Recovery By The Electrothermic Technique, Samy Abdel-Hakeem El-Feky

Doctoral Dissertations

"This work investigates the feasibility of increasing oil recovery from petroleum reservoirs by the electrothermic technique. A mathematical model was developed for the prediction of reservoir response to heating by alternating electric current flow through the oil-bearing formations. The mathematical model was programmed in FORTRAN for solution on the IBM 370/168. The model used the finite difference technique to represent the differential equations that describe the system, and the sets of difference equations were solved by the Strongly Implicit Procedure (SIP) and Successive Overrelaxation (SOR).

In order to verify the mathematical model, a set of experiments was conducted to determine …

A Systems Study Of Oil Pollution Abatement And Control For Portland Inner And Outer Harbor, Casco Bay, Maine, Arthur D. Little, Inc.

Maine Collection

A Systems Study of Oil Pollution Abatement and Control for Portland Inner and Outer Harbor, Casco Bay, Maine

to State of Maine, Department of Environmental Protection, State House Augusta, Maine 04330

Appropriation Number 4320-4001

by Arthur D. Little, Incorporated, 20 Acorn Park, Cambridge, Massachusetts 02140 (March 15, 1976).

Contents: Executive Summary / 1. Introduction / 2. Identification of Vulnerable Resources / 3. Potential Oil Spill Locations / 4. Oil Spill Movement / 5. Containment and Disposal Systems / 6. Oil Monitoring Systems / 7. Marine Navigation In Portland Inner and Outer Harbors / Appendices

The Energy Conservation Implications Of Master Metering Of Electric Service In Apartments, Gordon Gross

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

A study has been made of the difference in electricity usage between residents of "Electricity included" apartments and those tenants who pay individual "light bills." The factors which influence owners' and builders' choices of metering service are discussed in detail.

Data taken from over 100 apartment buildings or complexes in 10 major U.S. metropolitan areas and from over 50 major electric power companies are used as the basis for the reported results. Contractors estimates of the costs to convert building service from master to individual meter and some bases for these costs are presented.

The energy conservation potential which might …

A Vehicle For Improving Energy Management For Business And Industry, Herbert M. Eckerlin, Albert S. Boyers

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

A new technical assistance program focusing on the area of energy management has been developed by North Carolina State University for business and industry. This paper describes the operation of the program and presents some typical recommendations made to industry. The impact of the energy crisis on small industry is discussed and future plans for addressing this problem are presented.