日本鑛業會誌

油層の坑内採掘に關する基礎的考察に就て

小田川達朗

1934 年 50 巻 585 号 p. 1-15
発行日: 1934/01/22
公開日: 2011/07/13

DOIhttps://doi.org/10.11508/shigentosozai1885.50.1

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The social economy and national defense require the best development of our oil resources. Underground mining, with a view to increasing the production of petroleum by recovering the oil left in the sands after drilling wells is discussed.
The present paper describes a series of experimental work performed in an attempt to observe the permeability or the rate of flow of oil through sand, and to show how and to what extent this influences the applicability of this special method. The writer emphasises the fact that the coefficient of permeability is a controlling factor for its applicability and the determination of the proper working system to be used.
Special acknowledgments are due the officials of the Mines de Péchelbronn and ofthe Deutsche ErdOl A. G., for the courtesies which made his visit to the mines so informative.

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獨逸の石油鑛業に就て

大橋備治

1934 年 50 巻 585 号 p. 16-25
発行日: 1934/01/22
公開日: 2011/07/13

DOIhttps://doi.org/10.11508/shigentosozai1885.50.16

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The record of the existence of petroleum in Germany is so ancient, yet it is notuntil 1860 that the drilling was ever so systematically performed. In 1873 only 300 barrels of crude oil were produced in the Wietze Oil District, representing the first activity, in the field recorded. Due to the improvement of the drilling machine, coupled with the advance of the art, the output showed gradual increase until suspence came in the form of the Great War, after which event mining engineering getting warmer again, owing to the rise in price, the output of petroleum in the last year in Germany wit nessed the figure twice or more as great as that before the War.
The total petroleum production in Germany, however, bears only the proportion of some 10 per cent of the whole demand in the same country, the greater proportion of it being from abroad. The list of import consists mainly of: Gasoline 46%, Gas oil 16%, Lubricant 13%, Crude oil 11%, countries of export being America, Russia, and Mexico, the proportion 31%, 22%, 10% respectively.
The oil producing provinces in Germany may be divided into 3 parts:(i) North German Province, (ii) Rhein Oil Province, (iii) Subalpine Oil Province, and it is at the Hannover Oil field, in North German Oil Province, and at the Thuringia Oil field, struck recently by chance, where the drilling is being periormed somewhat payably. In the Wietze Oil District the oil sand mining method is being employed to some advantage.
In Germany, with the geophysical prospecting apparatus many promising salt domes have been struck, though many of them are left untouched yet. When they are invested with requisite funds and American “Wildcat” comes in vogue, Germany may, I believe, be one of the greatest petroleum producing countries.in the world.

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電氣收銅に及ぼす硫酸鐵の影響 (I)

平社敬之助

1934 年 50 巻 585 号 p. 26-48
発行日: 1934/01/22
公開日: 2011/07/13

DOIhttps://doi.org/10.11508/shigentosozai1885.50.26

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In connection with the hydrometallurgy of copper, the electrolytic extraction is very complicated and difficult in comparison with the ordinary electrolytic copper refining owing to the existence of impurities in the electrolyte and the use of insoluble anode. Of these difficulties, the detrimental effect of the iron sulphate may be the chief obstacle to the attainment of the economic success of the process.
The object of the present paper is, therefore, to deal with the effects of iron sulphates, as ferrous and ferric, in detals in order to explain the causes of the obstacles and to know how they can be overcome.
From the standpoint of practical complexity many defects are found in the predecessor's results on this problem.
In this paper somewhat comprehensive reseaches are carried out to enlighten the facts, not only on the effect upon the current efficiency but also upon the various other effects which may afford important considerations for the practice.

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摘録

1934 年 50 巻 585 号 p. 49-55
発行日: 1934/01/22
公開日: 2011/07/13

DOIhttps://doi.org/10.11508/shigentosozai1885.50.49

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正誤表

1934 年 50 巻 585 号 p. 78
発行日: 1934年
公開日: 2011/07/13

DOIhttps://doi.org/10.11508/shigentosozai1885.50.585_78

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