石油技術協会誌
Online ISSN : 1881-4131
Print ISSN : 0370-9868
ISSN-L : 0370-9868
43 巻, 1 号
選択された号の論文の7件中1~7を表示しています
  • 特にO-N-S複合化合物について
    秋久 国男
    1978 年 43 巻 1 号 p. 1-8
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
    In the 2nd report, the author made several reaction models, and kinetic parameters of the generation of O-N-S compounds (+hydrocarbons) from kerogen were calculated. In this report, a kinetic approach to the evaluation of petroleum source rocks with special reference to above mentioned products is shown.
    Thermal histories of the Onnagawa Formation at Anzen-zi and other areas were restored based on burial histories and geothermal gradients of those areas. With these information, the author tried to restore the generation of decomposed prcducts as a function of geologic time, and calculated "original O-N-S comp. (+hydrocarbons) forming potential". These calculations contain the following working hypotheses: (1) Kinetic parameters calculated from experimental data can be applied to the natural processes of generation of decomposed products. (2) Geothermal gradient has not changed through geologic time. (3) There are no lateral changes in the characteristics of kerogen at deposition and in the facies of source rocks.
    This kinetic approach has uniquenesses as follows: (1) This method takes thermal histories of source rocks into consideration as faithful as one may consider. (2) One can evaluate source rocks using only one sample which represents source rocks of evaluating area and can be restored as to its thermal history. (3) When there is a source rock which corresponds to that of (2) in a outcrop, one can evaluate source rocks in an early stage of exploration activities. (4) One can restore the contents and/or the ratios of decomposed products as a function of geologic time. (5) One can evaluate source rocks in the neighboring areas of sampling point, when thermal histories of the source rocks in those areas are known. (6) By connecting this method with the mechanisms of petroleum migration and accumulation and with the knowledges of tectonic movement, one can predict with more accuracy the geological setting in which oil accumulation could be expected.
  • 岡部 史生
    1978 年 43 巻 1 号 p. 9-15
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
    It has been well known that the product of porosity-φ and water saturation-Sw indicates a constant value in a certain reservoir condition.
    The new interpretative results, obtained in this field by using the special values of m and n, described above, have also indicated a clear relation of φ•Sw=C in irreducible water saturation conditions.
    Therefore, water free hydrocarbon productive intervals in development wells, have been successfuly detected by φ vs Sw plots which are based on the fundamental identification patterns established through the results of log analysis and production tests of wild cat wells.
  • 三木 孝
    1978 年 43 巻 1 号 p. 16-23
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
    Clay mineral assemblages and Na2O-K2O contents in 30 samples of fine-grained sedimentary rocks collected in Amakusa, western Kyushu, were examined. The analyzed results were supplemented by sedimentary petrographical data of sandstones already published.
    Detailed examination of clay minerals with microscope and X-ray diffractometer indicates that the present clay mineral assemblages which characterize each formations have been primarily controlled with the kinds of source rocks and thereafter modified by their diagenetical alterations.
    Na2O contents are almost uniform in the whole formations. K2O contents are mutually related to the change of illite contents, and finely represent the feature of formations. Na2O and K2O contents in the rocks of formations formed in large and stable basins fall in the narrow area on the graph, while those deposited in unstable basins widely scatter.
    Clay mineralogical and chemical studies of sedimentary rocks will help the further detailed sedimentological investigation of rocks in future study.
  • 田中 正三, 西 信幸
    1978 年 43 巻 1 号 p. 24-29
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
    In 1973 Beggs and Brill proposed a method to calculate two-phase pressure drop in inclined pipes. The flow patterns are divided into three regimes, that is, segregated, intermittent, and distributed. The flow patterns are predicted by the map on which Froud number is plotted against liquid content. But
    experimental data for Froud number less than 1.0 are not presented on their map. The pressure traverses in directional wells in Sarukawa oil field, Akita Prefecture were calculated by Beggs and Brill's method with their flow pattern map. The most of wells flowed at rates of less than 120 bbl per day. Extrapolation of L1 curve over lower range of production rates was found to be unsuccessful. A new flow pattern map obtained from field data is developed, as shown in Fig. 6. When Fig. 6 is used, Beggs and Brills correlation may be applicable to flow-rate flowing wells, too.
  • 上床 国夫
    1978 年 43 巻 1 号 p. 30-39
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
  • 小林 康生
    1978 年 43 巻 1 号 p. 40-46
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
  • 1978 年 43 巻 1 号 p. 47-49
    発行日: 1978年
    公開日: 2008/03/27
    ジャーナル フリー
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