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Producing – Equipment, Methods and Materials - Effect of Anisotropy and Stratification on Pressure Transient Analysis of Wells with Restricted Flow Entry
By H. Kazemi, M. S. Seth
The effects of anisotropy and stratification on flow behavior and production performance of oil and gas wells have been studied by numerous authors.1-3 Lefkovits et al.l studied the performance of tot
Jan 1, 1970
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Minerals Beneficiation - Theoretical and Experimental Studies of the Kinetics of Grinding in a Ball Mill
By F. W. Bowdish
A theoretical and experimental laboratory study has shown that the rate of breaking of oversized particles in a ball mill is proportional to 1) the concentration of such particles, and 2) the area of
Jan 1, 1961
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Mining - History and Development of the San Manuel Mine
By F. H. Buchella, J. F. Buchanan
The San Manuel copper deposit is located about 45 miles northeast of Tucson. The concentrator, smelter, administration building, and other plant facilities are located about seven miles southeast of t
Jan 1, 1961
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Wartime Washington and the Mineral Industries
By A. B. Parsons
DOWN in Washington an army of individuals constituting the government of a so-called "'democratic" nation is trying to manage the conduct, in its rnultifold phases, of the greatest war in history
Jan 1, 1942
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Producing – Equipment, Methods and Materials - A Rapid Method of Predicting Width and Extent of Hydraulically Induced Fractures
By J. Geertsma, F. de Klerk
During the hydraulic fracturing treatment of an oil or gas well the liquid pressure in the borehole is increased until tensile stress in the surrounding rock exceeds tensile strength. Once a tensile f
Jan 1, 1970
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Authors' Replies To Discussion Of Papers Presented At Recent Meetings
Discussion of the paper of R. J. COLONY, presented at the New York Meeting, February, 1921, and issued With MINING AND METALLURGY No. 169, January, 1921. R. J. COLONY (author's reply to discussi
Jan 8, 1921
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Part VIII - Communications - Kinetics of Ta5Si3 and Cb5Si3 Growth in Disilicide Coatings on Tantalum and Columbium
By R. W. Bartlett
DISILICIDE coatings, MeSi2, on refractory metals are usually grown by a solid-state diffusion reaction similar to the parabolic oxidation of metals. Two or more silicide compounds occur in each of the
Jan 1, 1967
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Technical Papers and Notes - Institute of Metals Division - A Note on the Use of Aluminum for the Dexodiation of Palladium and Its Alloys
By R. H. Atkinson, R. N. Rhoda
An improved technique has been developed for the deoxidation of palladium with aluminum which is especially suitable for use in making small castings with an induction-melting and casting machine. The
Jan 1, 1959
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Institute of Metals Division - Effect of Changes in Slip Direction on the Creep of Magnesium Crystals
By H. Conrad
The strain hardening associated with the creep of magnesium single crystals at room temperatu.Je was investigated by shear tests in which the direction of stressing was reversed a number of times afte
Jan 1, 1960
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Rock Mechanics - In Situ Stress Measurements from Tilts Induced by Mining Operations
By Ivan Simon, R. K. McConnell
Anticipating the availability of tiltmeters suitable for use in boreholes, this article proposes a method of using one or more of these meters to determine in situ stress distribution before and after
Jan 1, 1969
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Reservoir Engineering – General - Crossflow Effects During an Idealized Displacement Process In a Stratified Reservoir
By F. F. Skiba, P. J. Root
A mathematical model has been used to investigate crossflow effects in a stratified reservoir during an idealized displacement process. A process in which one incompressible fluid displaces completely
Jan 1, 1966
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Mining - Mechanics of Longwall Caving
By L. Adler
Longwall caving, one of the most economical and attractive mining methods, is yet one of the most difficult and hazardous.1 This dualism is inherent in a method which manipulates the mine supports the
Jan 1, 1961
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Comparative Tests Of Hammer Drill Bits
By Carroll Forbes
INTRODUCTION MANY different shapes of drill bits are in use with hammer drills, but little definite information is available whereby to judge which one of these shapes is the best. The following inv
Jan 8, 1917
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Natural Gas Technology - Realistic K Values of C7+ Hydrocarbons for Calculating Oil Vaporization During Gas Cycling at High Pressures
By A. B. Cook, C. J. Walker, G. B. Spencer
Although water will displace oil from a petroleum reservoir to a greater extent than gas will, there are some reservoirs in which gas rather than water should be used for pressure maintenance. This is
Jan 1, 1970
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Extractive Metallurgy Division - A Thermodynamic Analysis of the Ta-C-O, Cb-C-O, and V-C-O Systems
By John Chipman, Wayne L. Worrell
Using recent thermodynamic data for the carbides and oxides of tantalum, columbium, and vanadium, the stable solid phases aboue 1300°K and at 1 atm CO(g) pressure in each M-C-O system have been determ
Jan 1, 1964
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Some Observations in Heat Treatment of Muntz Metal
By L. Russell Van Wert
DURING an investigation in which the solubility relations of the phases in Muntz metal (60 per cent. copper, 40 per cent. zinc) were under study, certain phenomena that had no immediate connection wit
Jan 1, 1929
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A Method for Distinguishing Sulphides from Oxides in the Metallography of Steel
By George Comstock
IT seems a common opinion among metallographists that all light-gray inclusions seen with the microscope in polished sections of steel are manganese sulphide. Examples of this belief are continually a
Jan 12, 1916
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Minerals Beneficiation - Physical Chemical Aspects of Flocculation by Polymers
By R. B. Booth, W. F. Linke
The continuous interest of the American Cyanamid Company in producing superior polymeric flocculants and dispersants for the mining industry has resulted in a broad, general study of the physical chem
Jan 1, 1961
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Extractive Metallurgy Division - Debismuthizing of Lead
By T. R. A. Davey
The fundamental principles by which bismuth may be removed from lead by pyrometallurgical processes are enumerated. Qualitative discussion of the phase diagrams concerned is followed by presentation o
Jan 1, 1957