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  <front>
    <journal-meta>
      <journal-id journal-id-type="eissn">2588-0101</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Вестник Евразийской науки</journal-title>
        <journal-title xml:lang="en">The Eurasian Scientific Journal</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name>ООО «Издательство «Мир науки»</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="uri">https://esj.today/37NZVN225.html</article-id>
      <title-group>
        <article-title xml:lang="ru">Определение фазового состояния
двуокиси углерода в трехфазной системе (двуокись
углерода-вода-нефть) в условиях нефтяного пласта
на основе математической модели</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>Determination of the phase state of carbon
dioxide in a three-phase system (CO2 / water / oil)
based on a mathematical model</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Мади</surname>
            <given-names>Новел</given-names>
          </name>
          <name-alternatives>
            <name xml:lang="ru" name-style="eastern">
              <surname>Мади</surname>
              <given-names>Новел</given-names>
            </name>
            <name xml:lang="en" name-style="western">
              <surname>Mahdi</surname>
              <given-names>Newfel</given-names>
            </name>
          </name-alternatives>
          <email>novelmadi@gmail.com</email>
          <contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-4417-5781</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Зейгман</surname>
            <given-names>Юрий Вениаминович</given-names>
          </name>
          <name-alternatives>
            <name xml:lang="ru" name-style="eastern">
              <surname>Зейгман</surname>
              <given-names>Юрий Вениаминович</given-names>
            </name>
            <name xml:lang="en" name-style="western">
              <surname>Zeigman</surname>
              <given-names>Yuri Veniaminovich</given-names>
            </name>
          </name-alternatives>
          <email>jvzeigman@gmail.com</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">ФГБОУ ВО «Уфимский государственный нефтяной технический университет» (Уфа, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Ufa State Petroleum Technological University (Ufa, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2025-06-02">
        <day>02</day>
        <month>06</month>
        <year>2025</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2025</year>
      </pub-date>
      <volume>17</volume>
      <issue>2</issue>
      <elocation-id>37NZVN225</elocation-id>
      <history>
        <date date-type="received" iso-8601-date="2025-04-01">
          <day>01</day>
          <month>04</month>
          <year>2025</year>
        </date>
        <date date-type="accepted" iso-8601-date="2025-05-19">
          <day>19</day>
          <month>05</month>
          <year>2025</year>
        </date>
      </history>
      <permissions>
        <copyright-year>2025</copyright-year>
        <copyright-holder xml:lang="ru">Мади Новел, Зейгман Юрий Вениаминович</copyright-holder>
        <copyright-holder xml:lang="en">Mahdi Newfel, Zeigman Yuri Veniaminovich</copyright-holder>
        <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://esj.today/37NZVN225.html">https://esj.today/37NZVN225.html</self-uri>
      <abstract xml:lang="ru">
        <p>Изменение фазового состояния углекислого газа при его закачке в пласт с целью увеличения добычи нефти оказывает влияние на эффективность процесса вытеснения нефти. Однако в научной литературе отсутствуют точные математические модели, на основе которых можно было бы изучать изменения фазового состояния углекислого газа в трехфазной смеси (вода / нефть / диоксид углерода). В данной работе мы опирались на математическую модель Пенга Робинсона с модификациями, предложенными в предыдущих исследованиях. для определения фазового поведения компонентов смеси при различных давлениях и температурах, возникающих в процессе закачки двуокиси углерода в нефтяной пласт для увеличения нефтеотдачи. Результаты проведенного исследования с математическим моделированием изучаемых процессов позволили выполнять прогноз фазового поведения двуокиси углерода при контакте с пластовыми водой и нефтью и повысить эффективность применения СО2 как метода увеличения нефтеотдачи. Результаты также показали, что СО2 существует в жидкой фазе внутри трехфазной системы в условиях давления и температуры пласта, имеет перспективность для стратегий повышения нефтеотдачи. Результаты данного исследования расширяют знания в области математического моделирования фазовых изменений углекислого газа в процессе увеличения добычи нефти. Предложенная математическая модель также позволяет определить идеальные параметры закачки для контроля изменения фазового состояния углекислого газа под давлением и температурными условиями пласта.</p>
      </abstract>
      <trans-abstract xml:lang="en">
        <p>The change in the phase state of carbon dioxide when it is injected into the reservoir to increase oil recovery affects the efficiency of the oil displacement process. However, there are no accurate mathematical models in the scientific literature that could be used to study changes in the phase state of carbon dioxide in a three-phase mixture (water / oil / carbon dioxide). In this paper, we relied on the Peng Robinson mathematical model with modifications proposed in previous studies to determine the phase behavior of the mixture components at different pressures and temperatures that occur during the injection of carbon dioxide into an oil reservoir to increase oil recovery. The results of the study with mathematical modeling of the processes under study made it possible to predict the phase behavior of carbon dioxide when in contact with formation water and oil and increase the efficiency of using CO2 as a method for enhancing oil recovery. The results also showed that CO2 exists in the liquid phase inside a three-phase system under reservoir pressure and temperature conditions and has potential for enhanced oil recovery strategies. The results of this study expand knowledge in the field of mathematical modeling of carbon dioxide phase changes in the process of increasing oil production. The proposed mathematical model also allows determining ideal injection parameters to control the change in the phase state of carbon dioxide under pressure and temperature conditions of the reservoir.</p>
      </trans-abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>двуокись углерода</kwd>
        <kwd>фазовое состояние</kwd>
        <kwd>трехфазная система</kwd>
        <kwd>математическая модель</kwd>
        <kwd>смешивание с нефтью</kwd>
        <kwd>модель Пенга-Робинсона</kwd>
        <kwd>повышение нефтеотдачи</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>carbon dioxide</kwd>
        <kwd>phase state</kwd>
        <kwd>three-phase system</kwd>
        <kwd>mathematical model</kwd>
        <kwd>mixing with oil</kwd>
        <kwd>Peng-Robinson model</kwd>
        <kwd>enhanced oil recovery</kwd>
      </kwd-group>
    </article-meta>
  </front>
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</article>
