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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.2020.2.169</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-13385</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/13385</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">Study of the well near-bottomhole zone permeability during treatment by process fluids</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Исследование проницаемости призабойной зоны скважин при воздействии технологическими жидкостями</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Rogov</surname>
            <given-names>Evgenii A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Рогов</surname>
              <given-names>Е. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Rogov</surname>
              <given-names>Evgenii A.</given-names>
            </name>
          </name-alternatives>
          <email>e_rogov@vniigaz.gazprom.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">ООО «Научно-исследовательский институт природных газов и газовых технологий – Газпром ВНИИГАЗ» (Москва, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">LLC “Scientific Research Institute of Natural Gases and Gas Technologies – Gazprom VNIIGAZ” (Moscow, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2020-04-24">
        <day>24</day>
        <month>04</month>
        <year>2020</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2020</year>
      </pub-date>
      <volume>242</volume>
      <fpage>169</fpage>
      <lpage>173</lpage>
      <history>
        <date date-type="received" iso-8601-date="2019-09-25">
          <day>25</day>
          <month>09</month>
          <year>2019</year>
        </date>
        <date date-type="accepted" iso-8601-date="2019-12-20">
          <day>20</day>
          <month>12</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2020-04-24">
          <day>24</day>
          <month>04</month>
          <year>2020</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2020 Е. А. Рогов</copyright-statement>
        <copyright-statement xml:lang="en">© 2020 Evgenii A. Rogov</copyright-statement>
        <copyright-year>2020</copyright-year>
        <copyright-holder xml:lang="ru">Е. А. Рогов</copyright-holder>
        <copyright-holder xml:lang="en">Evgenii A. Rogov</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/13385">https://pmi.spmi.ru/pmi/article/view/13385</self-uri>
      <abstract xml:lang="ru">
        <p>В процессе вскрытия продуктивных горизонтов в приствольной зоне пласта происходит целый ряд необратимых физических и физико-химических процессов: изменяется напряженное состояние горных пород, наблюдается проникновение вглубь пласта-коллектора как фильтрата и твердой фазы, так и самого бурового раствора, а также набухание глинистых частиц межзернового цементирующего материала. В результате существенно снижается проницаемость продуктивного горизонта и, как следствие, исключается получение потенциально возможного притока нефти или газа из пласта. Не менее серьезная проблема существует и при проведении текущих и капитальных ремонтов скважин, когда использование нерациональных жидкостей глушения вызывает негативные последствия, связанные с ухудшением коллекторских свойств продуктивных пластов в ремонтируемых скважинах. В статье представлены результаты экспериментов по изучению проницаемости заглинизированных пористых образцов после воздействия на них различных составов жидкостей. С целью повышения проницаемости около скважинной зоны пласта и увеличения производительности скважин, законченных бурением, и после проведения текущих и капитальных ремонтов предложен состав технологической жидкости, содержащий 15 %-ный водный раствор оксиэтилендифосфоновой кислоты (ОЭДФ) с добавкой поверхностно-активного вещества (ПАВ).</p>
      </abstract>
      <abstract xml:lang="en">
        <p>In the process of drilling-in productive horizons, several irreversible physical and chemical processes take place in the near-wellbore zone of the formation: stress state of the rocks changes, penetration of the filtrate and solid phase, as well as drilling mud into the reservoir, and swelling of clay particles of intergranular cementing material are observed. As a result, permeability of productive horizon is significantly reduced and, consequently, potential inflow of oil or gas from formation is excluded. An equally serious problem exists during well servicing and workover, when the use of irrational fluids of well killing causes negative consequences associated with deterioration of reservoir properties of formations in the wells being repaired. Article presents the results of the experiments on permeability of clayed porous samples after exposure to various compositions of liquids. In order to increase permeability of near-borehole zone of the formation and increase productivity of wells completed by drilling, and after well servicing and workover, a composition of the process fluid containing a 15 % aqueous solution of oxyethylene diphosphonic acid (OEDA) with addition of a surfactant is proposed.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>скважина</kwd>
        <kwd>буровой раствор</kwd>
        <kwd>проницаемость</kwd>
        <kwd>призабойная зона пласта</kwd>
        <kwd>технологическая жидкость</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>well</kwd>
        <kwd>drilling mud</kwd>
        <kwd>permeability</kwd>
        <kwd>near-bottomhole zone</kwd>
        <kwd>process fluid</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
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