Journal of the Japanese Association for Petroleum Technology
Online ISSN : 1881-4131
Print ISSN : 0370-9868
ISSN-L : 0370-9868
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Volume 19, Issue 5
Displaying 1-4 of 4 articles from this issue
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  • Geologic Interpretation of the Rumoi Oil Field
    Hidezo TAKEDA
    1954 Volume 19 Issue 5 Pages 155-163
    Published: September 30, 1954
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.19.155
    JOURNAL FREE ACCESS
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    Rumoi oil field is one of the complicated structure in Hokkaido. Many unsolved problems remain here, especially regarding to the structure and sedimentation.
    In this paper one interpretation is proposed, namely
    1) stratigraphically the each horizon discussed, and
    2) "Yudoro Facies" newly proposed, and
    3) the facies being decided as one of the delta type affected by turbidity currents, and
    4) accumulated in the sinking trough. Occasionaly Air-Photo is applied.
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  • A Fundamental Test of Bentonite-Oil Mixture to Combat Circulation Loss
    Sumio AOKI
    1954 Volume 19 Issue 5 Pages 164-167
    Published: September 30, 1954
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.19.164
    JOURNAL FREE ACCESS
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    Results of experiment on physical properties of the bentonite oil mixture are explained in this paper.
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  • On the Fossil Diatoms found in the Deposit of Lake Suwa
    Wataru ICHIKAWA
    1954 Volume 19 Issue 5 Pages 168-175
    Published: September 30, 1954
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.19.168
    JOURNAL FREE ACCESS
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    The deposit of Lake Suwa due to special local conditions of sedimentation. The test well for natural gas prospecting digged down at Shibuzaki by Geological Survey of Japan in 1952-'53 and the deepest of it amounted to 371m.
    There are several considerations to be taken into account in regard to the exploitation of Lake Suwa deposit property. As one of them, we must take notice of the problem of fossil diatoms in the deposit.
    Microscopical experiments are then made on 28 samples of clayey rocks, and each of which contained fossil diatoms. Diatom is a common microplant, which knows in both marine and fresh water form, and is widely distributed in Japan. In the deposit of Lake Suwa, 597 species which was found are almost all fresh water and existing forms. The figures of the table were checked by the estimation of species on each material.
    The deposit represents a succession of fresh water sediments consisting of clay, tufaceous sand, sandy clay and tuff, and should be regarded as a deposit of the Quaternary Period. The position of the well is situated in a recent deposit near the southern shore of the lake, and represents a horizon stratigraphically uppermost the sediments of Lake Suwa.
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  • [title in Japanese]
    [in Japanese]
    1954 Volume 19 Issue 5 Pages 176-186
    Published: September 30, 1954
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.19.176
    JOURNAL FREE ACCESS
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