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Mining - Underground Mining - The Mathematics of Mine Sampling
By R. F. Shurtz
The problem of estimating the precision of systematic samples from a mineral deposit is attacked by interpolating the quality, or other attribute measured, by using Fourier approximation. Such approxi
Jan 1, 1967
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Industrial Minerals - The Grand Isle Mine: Freeport Sulphur Company’s Offshore Venture (Mining Engineering, Jun 1960, pg 578)
By C. O. Lee, Z. W. Bartlett, R. H. Feierabend
The Grand Isle sulfur mine is located in the Gulf of Mexico, approximately seven miles off the coast of Grand Isle, Jefferson Parish, La. The deposit is on acreage covered by oil, gas, and mineral lea
Jan 1, 1961
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Endowment Funds (7b6c8555-360c-4913-b4a4-ae7f39dbc067)
The income of the Institute is derived from dues, subscriptions to MINING AND METALLURGY and sale of publications. These sources are fortunately supplemented by the interest from invested funds now am
Jan 1, 1936
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Reservoir Engineering – Laboratory Research - The Effect of Temperature on the Permeability Ratio of Different Fluid Pairs in Two-Phase Systems
By L. B. Davidson
The petroleum literature contains many reports on the relative permeability properties of porous media. However, only recently have studies of relative permeability at elevated temperatures been made.
Jan 1, 1970
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Reservoir Engineering - General - The Prediction of Volumes, Compressibilities and Thermal Expansion Coefficients of Hydrocarbon Mixtures
By H. T. Kennedy, S. M. Avasthi
An equation developed for gaseous hydrocarbon mixtures predicts molal volumes with an average absolute deviation of 0.73 percent when applied to 264 natural gas and condensate systems including 2,043
Jan 1, 1969
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Technical Papers and Notes - Institute of Metals Division - Micrographic Investigation of Precipitation In Pb-Sn Alloys
By D. Turnbull, H. N. Treaftis
Precipitation of tin from Pb-Sn alloys (lead-rich) occurs by the nucleation and growth of hemispherical cells which consist of tin lomelloe interspersed in the depleted solid solution. Nucleation and
Jan 1, 1959
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Drilling Performances At The Kensico Dam, Catskill Aqueduct System, New York
By W. L. Saunders
WHEN work was begun in September, 1910, on the rock excavation for the foundation of the gigantic dam at Valhalla, N. Y., which is to convert Kensico lake into an important storage reservoir of the Ca
Jan 2, 1914
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Reservoir Engineering - General - Steam Zone Growth in a Preheated Reservoir
By P. J. Closmann
Steam zone growth as a function of time has been calculated for the case of constant rate steam injection into a preheated reservoir. To simplify the calculation a linear temperature profile has been
Jan 1, 1969
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Institute of Metals Division - Thermodynamic Activities in the Fe-Mn-C System
By J. F. Butler, H. W. Paxton
The vapor pressures of manganese in equilibrium with several alloys in the iron-manganese-carbon system between 1200° and 1275°K have been measured using the Knudsen effusion technique in conjunction
Jan 1, 1962
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Manufacture of Wire Bars from Secondary Copper
By W. A. Scheuch
ORDINARILY secondary copper, unless electrolytically refined, is reclaimed directly as foundry ingots used in the manufacture of copper-rich alloy castings. This use does not require the elimination o
Jan 1, 1929
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Producing-Equipment, Methods and Materials - Perforating of Multiple Tubingless Completions
By W. T. Bell, M. P. Lebourg
The perforating of multiple tubingless completions, in which two or more strings of 27/8-in. OD casing are installed in the same borehole, presents two basic problems. First, good completion practices
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Foreword (45c20d69-14a4-4365-9e92-5488ddfc83a5)
Jan 1, 1962
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Reservoir Engineering - General - Early Results of the First Large-Scale Steam Soak Project in the Tia Juana Field, Western Venezuela
By H. J. de Haan, J. van Lookeren
In view of their size and favorable characteristics, Shell's heavy-oil fields on the eastern coast of Lake Maracaibo, Venezuela — known as the "Bolivar Coast" — are obvious candidates for the app
Jan 1, 1970
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Institute of Metals Division - Beta Phase Parameters in the System Ti-V-Mo
By Jack L. Taylor
As expected from similar crystal structures and favorable atomic size factors, titanium, vanadium, and molybdenum are completely soluble in one another above the transformation temperature of titanium
Jan 1, 1957
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Geology, Geological Engineering - Fiberglass Plastic Casing Overcomes Corrosion Problem in Water Wells in West Pakistan
By Don K. Smith
The Reclamation Program for the Northern Zone of the Indus Plains in West Pakistan involves the construction of 30,000 irrigation wells to serve 20 million acres with an annual pumpage of nearly 40 mi
Jan 1, 1970
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Institute of Metals Division - Temperature Dependence of the Yielding Behavior of SAP-Type Dispersion Strengthened Alloys (TN)
By R. A. Bosch, F. V. Lenel, G. S. Ansell
RECENTLY, Ansell and aenel' proposed a dislocation model to account for the yielding behavior of dispersion-strengthened alloys. The criterion for yielding used in this model was that yielding o
Jan 1, 1962
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Minerals Beneficiation - Exothermic Hardening of Cu-Ni Sulfide Agglomerates
By F. Petkovich, M. P. Sudbury
Development of a new method of treating flotation concentrates for the preparation of feed suitable for direct charging to blast furnaces or converters is described. The method takes advantage of the
Jan 1, 1961
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Two-Dimensional Finite Difference Calculations Of Dynamic In-Situ Response Of Layered Geologic Media To A Large Explosive Load
By Howard R. Pratt, Jimmie L. Bratton
The Air Force Weapons Laboratory (AFWL) has been carrying out a series of experiments whose principal purpose is to measure the dynamic response of rock media to large pressure pulses. Coupled with th
Jan 1, 1972
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Part IV – April 1969 - Papers - Experimental Studies of Mass Transfer Between Two Immiscible Liquids
By Pervez Patel, Martin G. Frohberg, Demetrios Papamantellos
Model experiments were carried out on the mass transfer of iodine between n-hexane and a 4 2 X 10-3 M aqueous sodium hydroxide solution. The influence of mechanical stirring by means of small gas
Jan 1, 1970
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Institute of Metals Division - Discussion: Environmental Effects on the Mechanical Properties of Ionic Solids with Particular Reference to the Joffe Effect
By R. J. Stokes
S. Floreen (international Nickel Co.)— One fairly simple way to differentiate between em brittle me nt due to surface microcracks or due to a dislocation barrier effect might be to load a brittle rock
Jan 1, 1962