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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.2022.82</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15623</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15623</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 research on the thermal method of drilling by melting the well in ice mass with simultaneous controlled expansion of its diameter</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Экспериментальные исследования теплового способа бурения плавлением скважины в ледовом массиве с одновременным контролируемым расширением ее диаметра</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Serbin</surname>
            <given-names>Danil V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Сербин</surname>
              <given-names>Д. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Serbin</surname>
              <given-names>Danil V.</given-names>
            </name>
          </name-alternatives>
          <email>Serbin_DV@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0002-9855-7178</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>Dmitriev</surname>
            <given-names>Andrey N.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Дмитриев</surname>
              <given-names>А. Н.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Dmitriev</surname>
              <given-names>Andrey N.</given-names>
            </name>
          </name-alternatives>
          <email>serbin_dv@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0003-4615-3179</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-group>
      <pub-date pub-type="epub" iso-8601-date="2022-10-17">
        <day>17</day>
        <month>10</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>257</volume>
      <fpage>833</fpage>
      <lpage>842</lpage>
      <history>
        <date date-type="received" iso-8601-date="2021-10-15">
          <day>15</day>
          <month>10</month>
          <year>2021</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-09-06">
          <day>06</day>
          <month>09</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-11-10">
          <day>10</day>
          <month>11</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© Danil V. Serbin, Andrey N. Dmitriev</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">Д. В. Сербин, А. Н. Дмитриев</copyright-holder>
        <copyright-holder xml:lang="en">Danil V. Serbin, Andrey N. Dmitriev</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/15623">https://pmi.spmi.ru/pmi/article/view/15623</self-uri>
      <abstract xml:lang="ru">
        <p>В сезонные работы 64-й Российской антарктической экспедиции в 2018-2019 гг. на буровом комплексе им. Б.Б.Кудряшова (станция «Восток», Антарктида) специалисты Санкт-Петербургского горного университета провели экспериментальные исследования процесса бурения плавлением с одновременным расширением скважин в ледовом массиве. Для исследований были разработаны, изготовлены и испытаны стенд и натурная модель термогидравлического бурового снаряда-расширителя. Первые стендовые испытания натурной модели подтвердили ее работоспособность и пригодность для экспериментального бурения с одновременным расширением скважин в ледовом массиве, определены эксплуатационные возможности, обнаружены недостатки, которые будут учтены в будущем. В статье обоснован выбор конструктивных элементов термогидравлического бурового снаряда-расширителя. Установлено, что технологию бурения сплошным забоем с одновременным расширением скважины в ледовом массиве возможно реализовать за счет комбинирования процесса контактного бурения плавлением и конвективного расширения с созданием принудительной призабойной кольцевой циркуляции подогретого теплоносителя. Определены зависимости интенсивности расширения от основных технологических параметров: активной тепловой мощности нагревательных элементов пенетратора и циркуляционной системы, механической скорости бурения, производительности насоса. По результатам исследований будет спроектирован и изготовлен экспериментальный образец термогидравлического бурового снаряда-расширителя для испытания его в условиях скважины 5Г.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>During the seasonal work of the 64th Russian Antarctic Expedition in 2018-2019 at the “Vostok” drilling facility named after B.B.Kudryashov (“Vostok” station, Antarctic) specialists of Saint Petersburg Mining University conducted experimental investigations on the process of drilling by melting with simultaneous expansion of wells in the ice mass. A test bench and a full-scale model of a thermohydraulic reamer-drilling tool were developed, manufactured and tested for the research. The first bench tests of the full-scale model proved its efficiency and suitability for experimental drilling with simultaneous expansion of wells in ice mass; its operational capabilities were determined and the drawbacks that will be taken into account in future were found out. The article substantiates the choice of constructive elements for thermohydraulic reamer-drilling tool. It is determined that the technology of full diameter drilling with simultaneous expansion of the well in ice mass can be implemented by combining contact drilling by melting and convective expansion with creation of forced near-bottomhole annular circulation of the heated heat carrier. Dependencies of expansion rate on main technological parameters were determined: active heat power of heating elements in penetrator and circulation system, mechanical drilling rate, pump flow rate. According to the results of investigations, the experimental model of thermohydraulic reamer-drilling tool will be designed and manufactured for testing in conditions of well 5G.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>бурение льда плавлением</kwd>
        <kwd>бурение с одновременным расширением</kwd>
        <kwd>Антарктида</kwd>
        <kwd>термогидравлический буровой снаряд-расширитель</kwd>
        <kwd>эксперименты</kwd>
        <kwd>стендовые испытания</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>ice drilling by melting</kwd>
        <kwd>drilling with simultaneous expansion</kwd>
        <kwd>Antarctic</kwd>
        <kwd>thermohydraulic reamer-drilling tool</kwd>
        <kwd>experiments</kwd>
        <kwd>test bench trials</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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