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 36, Issue 5
Displaying 1-6 of 6 articles from this issue
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  • A Geologic Consideration on the Development of the Volcanic Rock Reservoirs
    Susumu NISHIJIMA
    1971 Volume 36 Issue 5 Pages 249-255
    Published: September 30, 1971
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.36.249
    JOURNAL FREE ACCESS
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    1. The planning of the development of oil and gas fields as well as the method to be used in such planning are derived from the results of operations research.
    On the basis of the estimations of reserves and average initial daily production per well, we carry out research for the most appropriate period of recovery and numbers of development wells, and further, we make plans on the arrangement of well, equipment and facilities for production.
    2. If we can predict the modes for the occurrence of oil and gas, or the distributions of productive and non-productive areas of the fields that are investigated, it contributes to the estimations of reserves and initial daily production per well.
    The writer considered some volcanic rock reservoirs in Niigata Prefecture for the basic data of the investigations above mentioned.
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  • Investigations into the Fundamentals of the Minimum Cost Drilling
    Yoshio HIRAMATSU, Yoshiaki MIZUTA, Haruhiko KURITA, Hideo FUKUI, Takeo ...
    1971 Volume 36 Issue 5 Pages 256-263
    Published: September 30, 1971
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.36.256
    JOURNAL FREE ACCESS
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    To drill an oil well at a minimum cost, it will be essential to use the most suitable bit type for the ground and to control both the bit load and the rotary speed at the optimum values respectively every moment. The authors have first discussed on the equations for the rate of drilling and the rate of wear of the bit teeth and bearings. Secondly they have investigated the values of several constants involved in the equations by referring to the drilling bit records taken by the Japan Petroleum Exploration Co., Ltd. It results in that four of the seven constants are found, while for the remaining three a method of determining them from a drill test which is to be carried out at the begining of each drilling operation is proposed. Lastly they have shown how to determine the optimum bit load and the rotary speed every moment, and have proved theoretically the profit which may be obtained by the minimum cost drilling by comparing its total cost with those of conventional drilling under various conditions.
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  • [title in Japanese]
    [in Japanese]
    1971 Volume 36 Issue 5 Pages 264-271
    Published: September 30, 1971
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.36.264
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1971 Volume 36 Issue 5 Pages 272-276
    Published: September 30, 1971
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.36.272
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1971 Volume 36 Issue 5 Pages 277-288
    Published: September 30, 1971
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.36.277
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1971 Volume 36 Issue 5 Pages 289-297
    Published: September 30, 1971
    Released on J-STAGE: March 27, 2008
    DOIhttps://doi.org/10.3720/japt.36.289
    JOURNAL FREE ACCESS
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