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 27, Issue 1
Displaying 1-5 of 5 articles from this issue
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  • Studies on Clay Minerals and Some Properties of Sedimentary Rocks in Oil-bearing Areas in Japan (4)
    Bunkichi OKINO
    1962 Volume 27 Issue 1 Pages 1-5
    Published: January 30, 1962
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.27.1
    JOURNAL FREE ACCESS
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    In this paper, the author describes about heaving or sloughing phenomena of bad shales, especially, from the stand point of clay minerals and adsorbed ions in several shales.
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  • Fluid-loss Reducing Additive of Gel-frac Injection Fluid
    Surface Active Agents employed for Preparation of Fracturing Fluid Part-1
    Norio OGINO, Masami MURAKAMI
    1962 Volume 27 Issue 1 Pages 6-11
    Published: January 30, 1962
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.27.6
    JOURNAL FREE ACCESS
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    The making cost of Gel-frac injection fluid can be decreased with use of crude oil instead of kerosene and light oil for base fluid. But in the case of crude oil, the fluid-loss of fracturing fluid becomes so serious as to exceed the allowable value upto 50c.c. in 30min. under 1, 000 psig. So to decrease the fluid-loss some special fluid-loss stopper must be added for practical use.
    Two factors, which must be hold the fluid-loss stopper, can be counted. The one is fluid-loss decreasing by plugging and the other is dispersing of stopper particles in oil.
    Here, the study is made for several years on peculiar properties of surface active agents, which are added into the fluid-loss stopper, in order to regulate the two contradictory factors.
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  • Water Permeability of Fine-grained Rocks
    Harumi ARAKI
    1962 Volume 27 Issue 1 Pages 12-18
    Published: January 30, 1962
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.27.12
    JOURNAL FREE ACCESS
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    In this paper, permeability characteristics of fine-grained rocks to water are investigated in the range of 1 to 8.7atm. and the following results are obtained: 1) clay particles between sands come in to flow as water pressure increases, 2) it takes a longer time for cross flowing to a stratum than parallel flowing to a stratum in test core, 3) the flow of water is laminar flow and subject to Poiseuille's law, and the following experimental relation is found between blow rate (Q0/A) and pressure gradient (Pi-Po/L), (Qo/A)=k(Pi-Po/L)X, where x=1.021-54, 4) mudstones of the Neogene Tertiary have capillary radius in the range of 0.16 to 1.48μ, 5) the flow rate is larger in parrallel flowing to a stratum than cross flowing to a stratum in test core.
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  • [title in Japanese]
    [in Japanese]
    1962 Volume 27 Issue 1 Pages 19-22
    Published: January 30, 1962
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.27.19
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1962 Volume 27 Issue 1 Pages 23-27
    Published: January 30, 1962
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.27.23
    JOURNAL FREE ACCESS
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