石油技術協会誌

秋田油田における荷背凝灰岩の檢討

井上武, 藤岡一男, 高安泰助

1956 年 21 巻 3 号 p. 79-85
発行日: 1956/05/30
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.79

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Abstract: In 1936, the igneous rocks which are developed at Nize pass and the upper course of Babanome river, east of Gojome in Akita prefecture, are called "Nize Tuff" by Omura and he considered that these rocks consist mainely of basaltic and intrusive rocks of the pre-Onnagawa stage.
According to the recent studies of the writers, the Nize tuff is not so simple as Omura considered, it is pyroclastic compound of Sunakobuchi formation, Onnagawa formation, dolerites, basaltic andesite and Manaitayama volcanic rocks. Excepting the Sunakobuchi formation, others are developed at the Nize pass, the type locality of the Nize tuff. They are effusive and intrusive products of the Onnagawa or the post-Onnagawa stage, and are clearly younger than the Nize tuff which Omura defined. The Sunakobuchi formation, which consists mainly of spilitic basalt and is older than the Onnagawa formation, does not expose at environs of the Nize pass, though it is widely distributed at eastern border of Akita oil field.
The name of Nize tuff must be abolished or redefined, though it has been used by many oil geologist for long time.

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泥水に対するCMCの作用

藤井清光

1956 年 21 巻 3 号 p. 85-91
発行日: 1956/05/30
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.85

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Physical properties of CMC mud are studied, and the results of experiments are described in this paper.

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正誤表

1956 年 21 巻 3 号 p. 91
発行日: 1956年
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.3_91

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傾斜した油層の水攻法第2報

石川洋

1956 年 21 巻 3 号 p. 92-96
発行日: 1956/05/30
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.92

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In his previous paper No. 1 in this Journal, the present outhor made an engineering study on single-fluid direct line floods in dipping reservoirs. In this paper, however, similar problems on staggered line floods [cf. Fig. 1] were discussed by solving by boundary-value problem [cf. formulae (1)-(5)] on 2-dimensional steady flow of single and incompressible fluids through homogeneous and symmetrical anticlinal reservoirs. At the same time, they were compared in many respects with those in direct line flooding cases. The derived results on velocity-potential distribution [cf. formula (6)]; pressure distribution [cf. (7)]; streamline distribution [cf. Fig. 2, 3 & formula (8)]; relations among well pressure difference, injection (or production) rate and angle of dip [cf. (9), (9)' & Fig. 4]; loss of flow capacity against gravity [cf. (10), (10)'& Fig. 5]; analytical expression of sweep efficiency and breakthrough time [cf. (11), (12)]; their relations to initial position of edge water [cf.Fig 6]: to well pattern [cf. Fig. 7, 8], are presented here. Moreover, it is shown that sweep efficiency for closed reservoir is independent of angle of dip and injection rate, in both staggered and direct cases and the former sweep efficiency is always larger than the latter one [cf. Fig. 6, 7, 8].

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相対滲透率測定法概説

平川誠一

1956 年 21 巻 3 号 p. 97-101
発行日: 1956/05/30
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.97

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掘鑿用300IP過給機付ヂーゼルエンヂン使用記録

小川栄一郎

1956 年 21 巻 3 号 p. 101-102
発行日: 1956/05/30
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.101

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北見國紋別郡における油徴ならびに天然ガス

橋本亘, 長尾捨一

1956 年 21 巻 3 号 p. 102-105
発行日: 1956/05/30
公開日: 2008/03/27

DOIhttps://doi.org/10.3720/japt.21.102

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北海道東部における油徴は阿寒火山の西麓に早くから知られ⁵⁾,その後知床半島のつけ根の忠類⁶⁾や網走地方に知られてきた⁷⁾。戦時中に紋別郡下湧別において石油探掘がなされた噂があつたが,その詳細を知り得ないでいた処,最近同じ紋別郡の南と北に相ついで油徴が発見され,その調査が北海道立地下資源調査所に依頼された。その調査に先立つて,橋本は下湧別における前述の噂の土地の石油調査を依頼され,その折にたまたま前述の南部の油徴をも見ることができた。その後,両名で再び同所ならびに北部の油徴を視察し得たので,今後のオホツク沿岸含油区域の探査に多少とも御参考になればと思い,それらの概要を報告したい。

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