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    <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.2022.24</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-14817</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/14817</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Геотехнология и инженерная геология</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Geotechnical Engineering and Engineering Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Experimental study on the effect of rock pressure on sandstone permeability</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Экспериментальное исследование влияния горного давления на проницаемость песчаника</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Petrakov</surname>
            <given-names>Dmitry G.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Петраков</surname>
              <given-names>Д. Г.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Petrakov</surname>
              <given-names>Dmitry G.</given-names>
            </name>
          </name-alternatives>
          <email>petrakov_DG@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0002-0461-1621</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Penkov</surname>
            <given-names>Grigory M.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Пеньков</surname>
              <given-names>Г. М.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Penkov</surname>
              <given-names>Grigory M.</given-names>
            </name>
          </name-alternatives>
          <email>penkovgrigoriy@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0001-7291-0757</contrib-id>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Zolotukhin</surname>
            <given-names>Anatoly B.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Золотухин</surname>
              <given-names>А. Б.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Zolotukhin</surname>
              <given-names>Anatoly B.</given-names>
            </name>
          </name-alternatives>
          <email>anatoly.zolotukhin@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0002-9591-8126</contrib-id>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru">Российский государственный университет нефти и газа (НИУ) имени И.М.Губкина (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Gubkin Russian State University of Oil and Gas (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2022-06-27">
        <day>27</day>
        <month>06</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>254</volume>
      <fpage>244</fpage>
      <lpage>251</lpage>
      <history>
        <date date-type="received" iso-8601-date="2021-04-06">
          <day>06</day>
          <month>04</month>
          <year>2021</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-04-27">
          <day>27</day>
          <month>04</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-07-13">
          <day>13</day>
          <month>07</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2022 Д. Г. Петраков, Г. М. Пеньков, А. Б. Золотухин</copyright-statement>
        <copyright-statement xml:lang="en">© 2022 Dmitry G. Petrakov, Grigory M. Penkov, Anatoly B. Zolotukhin</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">Д. Г. Петраков, Г. М. Пеньков, А. Б. Золотухин</copyright-holder>
        <copyright-holder xml:lang="en">Dmitry G. Petrakov, Grigory M. Penkov, Anatoly B. Zolotukhin</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/14817">https://pmi.spmi.ru/pmi/article/view/14817</self-uri>
      <abstract xml:lang="ru">
        <p>Представлены результаты лабораторных исследований по определению влияния эффективного напряжения на проницаемость песчаника. Во время испытания образцы подвергались ступенчатому увеличению или уменьшению эффективного напряжения (при постоянном поровом давлении) с заданным шагом. Определены значения проницаемости горных пород при различных значениях эффективного напряжения, а также установлено влияние размера зерен матрицы породы-коллектора на характер изменения коэффициента проницаемости песчаника. В ходе испытания наблюдалось уменьшение проницаемости при увеличении эффективного напряжения. Установлено, что в результате ступенчатой нагрузки/разгрузки образца песчаника исходные значения проницаемости не восстанавливались, что свидетельствует о начале образования остаточных деформаций в породе. Данный эффект необходимо учитывать при моделировании разработки месторождения, так как в процессе выработки запасов меняется эффективное напряжение, действующее на скелет породы-коллектора, что приводит к значительному изменению проницаемости горной породы. Результаты лабораторных исследований показали, что отклонение проницаемости в среднезернистых песчаниках относительно исходного значения было больше, чем в средне- и мелкозернистых. Численно оценены коэффициент чувствительности к давлению и константа материала, которые используются в эмпирических зависимостях между проницаемостью и эффективным напряжением. В то же время константа материала такую сходимость не показала, что свидетельствует о том, что значения этого параметра индивидуальны для каждой породы.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The results of laboratory studies to determine the effect of effective stress on the permeability of sandstone are presented. During the test, the samples were subjected to a stepwise increase or decrease of the effective stress (at a constant pore pressure) in a specified step. The values of rock permeability at different values of effective stress were determined, and the influence of the grain size of the reservoir rock matrix on the character of the change in the sandstone permeability coefficient was also established. During the test, a decrease in permeability was observed with an increase in effective stress. It was found that as a result of gradual loading/unloading of the sandstone sample, the original permeability values were not restored, which indicates the beginning of the formation of residual strains in the rock. This effect should be taken into account when modeling field development because in the process of reserves extraction the effective stress acting on the reservoir rock skeleton changes, which results in a significant chang in rock permeability. The results of laboratory studies showed that the deviation of permeability in medium-grained sandstones relative to the initial value was greater than in medium- and fine-grained sandstones. The pressure sensitivity coefficient and constant of material, which are used in empirical relationships between permeability and effective stress, were numerically estimated. At the same time, the constant of material showed no such convergence, which indicates that the values of this parameter are individual for each rock.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>проницаемость</kwd>
        <kwd>эффективное напряжение</kwd>
        <kwd>напряженно-деформированное состояние</kwd>
        <kwd>гистерезис</kwd>
        <kwd>пороупругость</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>permeability</kwd>
        <kwd>effective stress</kwd>
        <kwd>stress-strain state</kwd>
        <kwd>hysteresis</kwd>
        <kwd>poroelasticity</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
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