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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.2022.67</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15779</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15779</article-id>
      <article-categories/>
      <title-group>
        <article-title xml:lang="en">A probabilistic study on hole cleaning optimization</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Вероятностное исследование оптимизации промывки скважины</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Tabatabaee Moradi</surname>
            <given-names>Seyyed Shahab</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Табатабаи Моради</surname>
              <given-names>С. Ш.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Tabatabaee Moradi</surname>
              <given-names>Seyyed Shahab</given-names>
            </name>
          </name-alternatives>
          <email>s.sh.tabatabaee@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0002-1484-6926</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Технологический университет Саханда (Иран)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Sahand University of Technology (Iran)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2022-12-29">
        <day>29</day>
        <month>12</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>258</volume>
      <fpage>956</fpage>
      <lpage>963</lpage>
      <history>
        <date date-type="received" iso-8601-date="2022-03-24">
          <day>24</day>
          <month>03</month>
          <year>2022</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-07-21">
          <day>21</day>
          <month>07</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-12-29">
          <day>29</day>
          <month>12</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2022 С. Ш. Табатабаи Моради</copyright-statement>
        <copyright-statement xml:lang="en">© 2022 Seyyed Shahab Tabatabaee Moradi</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">С. Ш. Табатабаи Моради</copyright-holder>
        <copyright-holder xml:lang="en">Seyyed Shahab Tabatabaee Moradi</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/15779">https://pmi.spmi.ru/pmi/article/view/15779</self-uri>
      <abstract xml:lang="ru">
        <p>Промывка ствола скважины считается одной из самых важных функций бурового раствора. Качественная промывка ствола скважины обеспечивает эффективное бурение скважины с минимальными осложнениями. В исследовании на основе данных бурения сланцевого пласта рассматриваются два основных этапа промывки ствола скважины: удаление шлама из-под долота и его перенос на поверхность. Представлены традиционные модели для оптимизации каждого этапа. Поскольку модели требуют различных входных данных, которые обычно подвержены некоторой степени погрешности и неопределенности, выходные данные модели также являются неопределенным параметром. С помощью моделирования методом Монте-Карло было проведено простое вероятностное исследование для количественной оценки степени достоверности полученных результатов. Результаты данного исследования подтверждают качественную промывку ствола рассматриваемой скважины. Однако более надежное решение по дальнейшей оптимизации промывки скважины должно приниматься с учетом результатов анализа неопределенности.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Hole cleaning is considered as one of the most important drilling fluid functions. An efficient hole cleaning ensures a reliable well drilling practice with minimum troublesome problems. In this study, two main steps of hole cleaning, i.e., cuttings removal from under the bit and cuttings transport to the surface are discussed based on the drilling data of a shale formation. The traditional models for optimization of each step are presented. As the models require variety of input data, which are usually subjected to some extent of errors and uncertainties, the output of the model is also an uncertain parameter. Using Monte Carlo simulation, a simple probabilistic study was conducted to quantify the certainty level of the obtained results. Based on the result of this study, it is shown that for the proposed well, a good hole cleaning is expected. However, a more reliable decision for further hole cleaning optimization should be made considering the results of uncertainty analysis.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>буровой раствор</kwd>
        <kwd>шлам</kwd>
        <kwd>неопределенность</kwd>
        <kwd>метод Монте-Карло</kwd>
        <kwd>погрешность</kwd>
        <kwd>реология</kwd>
        <kwd>коэффициент переноса</kwd>
        <kwd>показатель выносящей способности</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>drilling fluid</kwd>
        <kwd>rock cuttings</kwd>
        <kwd>uncertainty</kwd>
        <kwd>Monte Carlo</kwd>
        <kwd>error</kwd>
        <kwd>rheology</kwd>
        <kwd>transport ratio</kwd>
        <kwd>CCI</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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