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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 custom-type="pmi" pub-id-type="custom">pmi-12201</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12201</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Без раздела</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Without section</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Estimation of economic efficiency of cooled air blowing during core drilling</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Оценка экономической эффективности применения продувки охлажденным воздухом при колонковом бурении</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Golovkin</surname>
            <given-names>A. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Головкин</surname>
              <given-names>А. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Golovkin</surname>
              <given-names>A. V.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Kovalenko</surname>
            <given-names>V. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Коваленко</surname>
              <given-names>В. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Kovalenko</surname>
              <given-names>V. I.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Chistyakov</surname>
            <given-names>V. K.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Чистяков</surname>
              <given-names>В. К.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Chistyakov</surname>
              <given-names>V. K.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1969-08-20">
        <day>20</day>
        <month>08</month>
        <year>1969</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1969</year>
      </pub-date>
      <volume>57</volume>
      <issue>2</issue>
      <fpage>139</fpage>
      <lpage>140</lpage>
      <history>
        <date date-type="received" iso-8601-date="1968-08-20">
          <day>20</day>
          <month>08</month>
          <year>1968</year>
        </date>
        <date date-type="accepted" iso-8601-date="1968-10-13">
          <day>13</day>
          <month>10</month>
          <year>1968</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1969-08-20">
          <day>20</day>
          <month>08</month>
          <year>1969</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1969 А. В. Головкин, В. И. Коваленко, В. К. Чистяков</copyright-statement>
        <copyright-statement xml:lang="en">© 1969 A. V. Golovkin, V. I. Kovalenko, V. K. Chistyakov</copyright-statement>
        <copyright-year>1969</copyright-year>
        <copyright-holder xml:lang="ru">А. В. Головкин, В. И. Коваленко, В. К. Чистяков</copyright-holder>
        <copyright-holder xml:lang="en">A. V. Golovkin, V. I. Kovalenko, V. K. Chistyakov</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/12201">https://pmi.spmi.ru/pmi/article/view/12201</self-uri>
      <abstract xml:lang="ru">
        <p>Успешное испытание технических средств и технологии бурения скважин с очисткой забоя охлажденным сжатым воздухом, разрабаты­ваемых кафедрой ТТБС ЛГИ по договору с институтом „Дальстройпроект" (г. Магадан), позволило провести бурение указанным спосо­бом в производственных условиях и дать предварительную оценку его экономической эффективности по сравнению со способом бурения сква­жин в мерзлых породах „всухую", т. е. без очистки забоя каким-либо циркуляционным агентом.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Successful testing of technical means and technology of drilling wells with bottom-hole cleaning by cooled compressed air, developed by the department of TTBS of LGI under the contract with the Dalstroyproekt Institute (Magadan), allowed drilling by this method in production conditions and give a preliminary assessment of its economic efficiency in comparison with the method of drilling wells in frozen rocks “dry”, i.e. without bottom-hole cleaning by any circulating agent.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list>
      <ref id="ref1">
        <label>1</label>
        <mixed-citation xml:lang="ru">Методика определения экономической эффективности новой геологоразведочной техники. Госгеолтехиздат, М., 1963.</mixed-citation>
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      <ref id="ref2">
        <label>2</label>
        <mixed-citation xml:lang="ru">Справочник сметных норм на геологоразведочные работы по статьям основных расходов, выпуск V. М., Госгеолтехиздат, 1960.</mixed-citation>
        <mixed-citation xml:lang="en"> Reference Book of Estimated Norms for Geological Exploration Work on the items of basic costs, issue V. M., Gosgeoltekhizdat, 1960.</mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
