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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31897/pmi.2020.1.91</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-4952</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/4952</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Нефтегазовое дело</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Oil and gas</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Testing of preformed particles polymer gel technology  on core filtration models to limit water inflows</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Тестирование технологии предварительно сшитых частиц  полимерного геля для ограничения водопритоков  на фильтрационных керновых моделях</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Ketova</surname>
            <given-names>Yu. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Кетова</surname>
              <given-names>Ю. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Ketova</surname>
              <given-names>Yu. A.</given-names>
            </name>
          </name-alternatives>
          <email>ketova.pstu@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0001-7275-5419</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">ООО "НефтеПром Сервис" (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">LTD «NefteProm Service», Perm (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Bai</surname>
            <given-names>Baojun </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Бай</surname>
              <given-names>Боджан </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Bai</surname>
              <given-names>Baojun </given-names>
            </name>
          </name-alternatives>
          <email>baib@mst.edu</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Миссурийский университет науки и технологий (Соединённые штаты)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Missouri University of Science and Technology, Missouri, USA (United States)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Khizhnyak</surname>
            <given-names>G. P.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Хижняк</surname>
              <given-names>Г. П.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Khizhnyak</surname>
              <given-names>G. P.</given-names>
            </name>
          </name-alternatives>
          <email>xgp@mail.ru</email>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru">Пермский национальный исследовательский политехнический университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Perm national research polytechnic university (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Gladkikh</surname>
            <given-names>Ye. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Гладких</surname>
              <given-names>Е. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Gladkikh</surname>
              <given-names>Ye. A.</given-names>
            </name>
          </name-alternatives>
          <email>gladkih.ea@mail.ru</email>
          <xref ref-type="aff" rid="aff4"/>
        </contrib>
        <aff-alternatives id="aff4">
          <aff>
            <institution xml:lang="ru">Пермский национальный исследовательский политехнический университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Perm national research polytechnic university (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Galkin</surname>
            <given-names>S. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Галкин</surname>
              <given-names>С. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Galkin</surname>
              <given-names>S. V.</given-names>
            </name>
          </name-alternatives>
          <email>doc_galkin@mail.ru</email>
          <xref ref-type="aff" rid="aff5"/>
        </contrib>
        <aff-alternatives id="aff5">
          <aff>
            <institution xml:lang="ru">Пермский национальный исследовательский политехнический университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Perm national research polytechnic university (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2020-02-25">
        <day>25</day>
        <month>02</month>
        <year>2020</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2020</year>
      </pub-date>
      <volume>241</volume>
      <fpage>91</fpage>
      <lpage>96</lpage>
      <history>
        <date date-type="received" iso-8601-date="2019-08-08">
          <day>08</day>
          <month>08</month>
          <year>2019</year>
        </date>
        <date date-type="accepted" iso-8601-date="2019-09-16">
          <day>16</day>
          <month>09</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2020-02-25">
          <day>25</day>
          <month>02</month>
          <year>2020</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© Yu. A. Ketova, Baojun  Bai, G. P. Khizhnyak, Ye. A. Gladkikh, S. V. Galkin</copyright-statement>
        <copyright-year>2020</copyright-year>
        <copyright-holder xml:lang="ru">Ю. А. Кетова, Боджан  Бай, Г. П. Хижняк, Е. А. Гладких, С. В. Галкин</copyright-holder>
        <copyright-holder xml:lang="en">Yu. A. Ketova, Baojun  Bai, G. P. Khizhnyak, Ye. A. Gladkikh, S. V. Galkin</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/4952">https://pmi.spmi.ru/pmi/article/view/4952</self-uri>
      <abstract xml:lang="ru">
        <p>С целью снижения обводненности скважин и выравнивания профилей приемистости рассмотрены перспективы внедрения на российских месторождениях технологии PPG, при которой в нагнетательную скважину закачиваются предварительно сшитые частицы полимерного геля. Эти частицы, являясь суперсорбентом на основе полиакриламида, впитывают воду, становятся эластичными, что позволяет им сжиматься и рваться в узких фильтрационных каналах. При фильтрации полимера по проницаемым обводненным пропласткам частицы полимера накапливаются в обводненных интервалах и таким образом образуют полимерную пробку, которая перераспределяет фильтрационные потоки и увеличивает охват пласта процессом вытеснения нефти. К настоящему времени на месторождениях Китая и США по технологии PPG проведено более 4000 скважинных операций. На отечественных месторождениях Западной Сибири имеется ограниченный опыт применения аналогичной технологии в условиях высокотемпературных пластов с низкой минерализацией пластовой воды. В условиях низкотемпературных месторождений с повышенной минерализацией пластовой воды, ввиду отсутствия гидролитических процессов в полиакриламиде, известные отечественные составы не применимы по причине низкой абсорбционной емкости. Авторами синтезирован полимер на основе полиакриламида методом блочной полимеризации, позволяющий получить высокий показатель абсорбционной емкости, в том числе для низкотемпературных пластов с высокой минерализацией пластовой воды, что характерно для месторождений Пермского края. На керновых моделях проведены фильтрационные эксперименты с разработанным авторами составом, ориентированным на низкие пластовые температуры и высокую минерализацию пластовой воды. В результате экспериментов установлено, что набухшие частицы геля способны проходить в трещины диаметром меньше собственного размера минимум в 20 раз. При значительном увеличении вязкости дисперсионной среды стабильность суспензии увеличивается. Частицы полимерного геля обладают необходимой прочностью для осуществления закачки в промысловых условиях. Трещинная проницаемость при закачке полимера кратно снижается и становится сопоставимой с проводимостью коллекторов порового типа.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>In order to reduce watering of wells and equalize their injectivity profiles, the prospects of introducing PPG technology in Russian fields are considered, in which preformed particles polymer gel are pumped into the injection well. These particles, being a supersorbent based on polyacrylamide, absorb water, become elastic, which allows them to shrink and tear in narrow filtration channels. When the polymer is filtered along permeable layers saturated with water, polymer particles accumulate in waterlogged intervals and thus they form a polymer plug, which redistributes the filtration flows and increases the coverage of the formation by the process of oil displacement. More than 4000 downhole operations have been carried out in the fields of China and the USA using PPG technology by now. In domestic fields in Western Siberia, there is limited experience in applying a similar technology in high-temperature formations with low mineralization of formation water. Due to the absence of hydrolytic processes in polyacrylamide, well-known domestic compositions are not applicable due to the low absorption capacity in the conditions of low-temperature deposits with increased mineralization of formation water. The authors synthesized a polymer based on polyacrylamide by block polymerization, which allows to obtain a high absorption capacity, including for low-temperature formations with high mineralization of formation water, which is typical for Perm Territory fields. Filtration experiments were carried out on core models with the composition developed by the authors, this composition focused on low formation temperatures and high mineralization of formation water. As a result of the experiments, it was found that the swollen particles of the gel are able to pass into fractures with a diameter less than their own size at least 20 times. With a significant increase in the viscosity of the dispersion medium, the stability of the suspension increases. Particles of polymer gel have the necessary strength for injection in the field conditions. The fracture permeability during polymer injection decreases by several times and becomes comparable with the permeability of pore collectors.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>обводненность добывающих скважин</kwd>
        <kwd>профиль приемистости</kwd>
        <kwd>нагнетательные скважины</kwd>
        <kwd>суперабсорбент</kwd>
        <kwd>сшитый полимерный гель</kwd>
        <kwd>полиакриламид</kwd>
        <kwd>фильтрационные испытания</kwd>
        <kwd>проницаемость</kwd>
        <kwd>давление закачки</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>watering of producing wells</kwd>
        <kwd>injectivity profile</kwd>
        <kwd>injection wells</kwd>
        <kwd>superabsorbent</kwd>
        <kwd>preformed polymer gel</kwd>
        <kwd>polyacrylamide</kwd>
        <kwd>filtration tests</kwd>
        <kwd>permeability</kwd>
        <kwd>injection pressure</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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