دانلود مقاله انگلیسی رایگان:مطالعات تجربی در مورد قوانین واکنش در طی فرآیند تزریق هوا به مخازن روغن با نفوذپذیری کم - 2020
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  • Experimental studies on reaction laws during the process of air injection into the oil reservoirs with low permeability Experimental studies on reaction laws during the process of air injection into the oil reservoirs with low permeability
    Experimental studies on reaction laws during the process of air injection into the oil reservoirs with low permeability

    سال انتشار:

    2020


    عنوان انگلیسی مقاله:

    Experimental studies on reaction laws during the process of air injection into the oil reservoirs with low permeability


    ترجمه فارسی عنوان مقاله:

    مطالعات تجربی در مورد قوانین واکنش در طی فرآیند تزریق هوا به مخازن روغن با نفوذپذیری کم


    منبع:

    Sciencedirect - Elsevier - Journal of Petroleum Science and Engineering, 194 (2020) 107526: doi:10:1016/j:petrol:2020:107526


    نویسنده:

    Jian Luan a,b, Pingchuan Dong a,b,*, Jilong Zheng c,d


    چکیده انگلیسی:

    The low permeability oil reservoirs are widely distributed in the world, but difficult to develop with the traditional methods due to the low permeability and poor injection properties. Air injection technique not only has the common characteristics of other gas injection techniques, but also can improve the quality of crude oil in situ because of the oxidative ability of the injected air, with a unique advantage in developing low permeability reservoirs. In order to study the reaction regularity between the hydrocarbon components in crude oil under different conditions with the oxygen in the injected air, this experiment is designed for a low permeability sandstone reservoir. In this experiment, one set of self-designed static low-temperature oxidation equipment (including injection pump and high-temperature high–pressure reactor with sampling outlets) has been used. Through analysis of the results of the chromatography for over 60 oil and gas samples, conclusions can be made that after low temperature oxidation (LTO) reactions between the crude oil and the oxygen in the injected air, the concentration of the heavy components in crude oil decreased, and the concentration of the light components increased. By injecting oxygen-reduced air with 8% of oxygen, the concentration of the heavy components of crude oil in the target reservoir reduced most obviously. The formation water and associated gas can hinder the pyrolysis of heavy components, while the minerals in the formation can accelerate the pyrolysis process. The relationship between the carbon atoms number in each of the most consumed hydrocarbon molecule and different LTO reaction conditions has been proposed. According to the sensitivity analysis, it is believed that the influence of the formation water on the LTO reactions is greater than that of minerals in the formation, and influence of associated gas is less than that of minerals. Finally, combined the related physical and chemical theories, a LTO chemical reaction equation has been put forward for the targeted low permeability oil reservoir. The conclusions of the studies can provide some references for the indoor experiments and field applications of air injection in the future.
    Keywords: Low permeability sandstone oil reservoir | Air injection | Static experiments | Low temperature oxidation | Formula


    سطح: متوسط
    تعداد صفحات فایل pdf انگلیسی: 9
    حجم فایل: 1295 کیلوبایت

    قیمت: رایگان


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