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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.2019.6.694</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-13248</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/13248</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">Methodology for calculating technical efficiency of power sections in small-sized screw downhole motors for the «Perfobur» system</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Методология расчета технической эффективности силовых секций малогабаритных винтовых забойных двигателей для системы «Перфобур»</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Lyagov</surname>
            <given-names>I. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Лягов</surname>
              <given-names>И. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Lyagov</surname>
              <given-names>I. A.</given-names>
            </name>
          </name-alternatives>
          <email>ilyagov@perfobur.com</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">ООО «Перфобур» (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">«Perfobur» LLC (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Baldenko</surname>
            <given-names>F. D.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Балденко</surname>
              <given-names>Ф. Д.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Baldenko</surname>
              <given-names>F. D.</given-names>
            </name>
          </name-alternatives>
          <email>ba3_podval@inbox.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Российский государственный университет нефти и газа (НИУ) имени И.М.Губкина (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">National University of Oil and Gas «Gubkin University» (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Lyagov</surname>
            <given-names>A. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Лягов</surname>
              <given-names>А. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Lyagov</surname>
              <given-names>A. V.</given-names>
            </name>
          </name-alternatives>
          <email>Lyagovs@mail.ru</email>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru">Уфимский государственный нефтяной технический университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Ufa State Petroleum Technological University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Yamaliev</surname>
            <given-names>V. U.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Ямалиев</surname>
              <given-names>В. У.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Yamaliev</surname>
              <given-names>V. U.</given-names>
            </name>
          </name-alternatives>
          <email>vilyzich@yandex.ru</email>
          <xref ref-type="aff" rid="aff4"/>
        </contrib>
        <aff-alternatives id="aff4">
          <aff>
            <institution xml:lang="ru">Уфимский государственный нефтяной технический университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Ufa State Petroleum Technological University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Lyagova</surname>
            <given-names>A. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Лягова</surname>
              <given-names>А. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Lyagova</surname>
              <given-names>A. A.</given-names>
            </name>
          </name-alternatives>
          <email>anastasiya.geras@mail.ru</email>
          <xref ref-type="aff" rid="aff5"/>
        </contrib>
        <aff-alternatives id="aff5">
          <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-group>
      <pub-date pub-type="epub" iso-8601-date="2019-12-24">
        <day>24</day>
        <month>12</month>
        <year>2019</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2019</year>
      </pub-date>
      <volume>240</volume>
      <fpage>694</fpage>
      <lpage>700</lpage>
      <history>
        <date date-type="received" iso-8601-date="2019-07-10">
          <day>10</day>
          <month>07</month>
          <year>2019</year>
        </date>
        <date date-type="accepted" iso-8601-date="2019-08-30">
          <day>30</day>
          <month>08</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2019-12-24">
          <day>24</day>
          <month>12</month>
          <year>2019</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2019 И. А. Лягов, Ф. Д. Балденко, А. В. Лягов, В. У. Ямалиев, А. А. Лягова</copyright-statement>
        <copyright-statement xml:lang="en">© 2019 I. A. Lyagov, F. D. Baldenko, A. V. Lyagov, V. U. Yamaliev, A. A. Lyagova</copyright-statement>
        <copyright-year>2019</copyright-year>
        <copyright-holder xml:lang="ru">И. А. Лягов, Ф. Д. Балденко, А. В. Лягов, В. У. Ямалиев, А. А. Лягова</copyright-holder>
        <copyright-holder xml:lang="en">I. A. Lyagov, F. D. Baldenko, A. V. Lyagov, V. U. Yamaliev, A. A. Lyagova</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/13248">https://pmi.spmi.ru/pmi/article/view/13248</self-uri>
      <abstract xml:lang="ru">
        <p>С ростом доли старых и низкодебитных скважин и для эффективной эксплуатации месторождений необходимо приобщать к разработке продуктивные пласты малой мощности. Существует много скважин, где бурение боковых стволов и гидроразрыв пласта затруднительны из-за близкого расположения газовой шапки и подстилающей воды в силу геолого-технологических причин, а применение существующих технологий вторичного вскрытия не эффективно из-за обширной зоны кольматации или заколонной циркуляции. Возрастает актуальность применения технологий радиального бурения, позволяющего вскрывать пласт сетью протяженных каналов для установления качественной гидравлической связи между пластом и скважиной без ущерба для проницаемости пласта. В отличие от технологий радиального бурения, использующих гидронамыв, в технической системе (ТС) «Перфобур» для строительства каналов используются малогабаритные винтовые забойные двигатели (ВЗД) и породоразрушающий инструмент. Для эффективного фрезерования эксплуатационных колонн и разрушения горной породы гидравлический забойный двигатель должен обладать высоким крутящим моментом, а для возможности бурения с высоким темпом набора угла – иметь короткую силовую секцию. Существующие отечественные и зарубежные ВЗД имеют ограниченный ряд типоразмеров и не отвечают требованиям, заложенным в техническое задание на разработку забойного модуля ТС «Перфобур». В статье рассмотрены вопросы разработки универсальных малогабаритных секционных винтовых забойных двигателей для фрезерования обсадных колонн и бурения сети разветвленных каналов сверхмалого диаметра и радиуса кривизны в составе ТС «Перфобур». Предложенная в статье методология выбора оптимальной конфигурации силовых секций ВЗД позволяет сконструировать малогабаритный секционный забойный двигатель, отвечающий техническим требованиям и обладающий улучшенными характеристиками по сравнению с серийными ВЗД.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>With an increase in the share of old and low-yield wells and for the efficient exploitation of fields, it is necessary to include low-capacity formations into production. There are many wells where sidetracking and hydraulic fracturing are difficult due to the close proximity of the gas cap and underlying water caused by geological and technological reasons, and the use of existing secondary drilling-in technologies is not effective due to the extensive colmatated zone or annular circulation. Relevance of radial drilling technologies is growing, which allows drilling-in of the formation with a network of extended channels to establish high-quality hydraulic communication between the formation and the well without affecting the permeability of the formation. In contrast to radial drilling technologies using hydraulic washing, technical system (TS) «Perfobur» uses small-sized screw downhole motors (SDM) and rock cutting tools for channel construction. For efficient milling of production casing and destruction of rock, the hydraulic downhole motor must have high torque, and for the possibility of drilling with a high rate of angle gain, it must have short power section. Existing Russian and foreign SDM have limited number of standard sizes and do not meet the requirements specified for the development of the downhole module of TS «Perfobur». The paper discusses the development of universal small-sized sectional screw downhole motors for milling casing strings and drilling a network of branched channels of super-small diameter and radius of curvature as a part of the TS «Perfobur». Methodology proposed in the article for selecting optimal configuration of the SDM power sections allows constructing small-sized sectional downhole motor that meets the technical requirements and has improved characteristics compared to standard SDM.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>перфобур</kwd>
        <kwd>вторичное вскрытие продуктивного пласта</kwd>
        <kwd>повышение нефтеотдачи</kwd>
        <kwd>глубокое перфобурение</kwd>
        <kwd>винтовой забойный двигатель</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>perforationbit</kwd>
        <kwd>secondaryreservoirdrilling-in</kwd>
        <kwd>enhanced oil recovery</kwd>
        <kwd>deep perforation drilling</kwd>
        <kwd>screw downhole motor</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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