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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-12011</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12011</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">Influence of drill bit design on drilling cost (with SVB-2 machines at Estonslanets field).</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Влияние конструкции буровых коронок на себестоимость бурения (станками СВБ-2 на месторождении Эстонсланец)</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Talko</surname>
            <given-names>A. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Талько</surname>
              <given-names>А. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Talko</surname>
              <given-names>A. I.</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"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Petrov</surname>
            <given-names>R. M.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Петров</surname>
              <given-names>Р. М.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Petrov</surname>
              <given-names>R. M.</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"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Vaher</surname>
            <given-names>E. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Вахер</surname>
              <given-names>Э. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Vaher</surname>
              <given-names>E. A.</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"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1967-09-21">
        <day>21</day>
        <month>09</month>
        <year>1967</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1967</year>
      </pub-date>
      <volume>54</volume>
      <issue>1</issue>
      <fpage>55</fpage>
      <lpage>58</lpage>
      <history>
        <date date-type="received" iso-8601-date="1966-07-05">
          <day>05</day>
          <month>07</month>
          <year>1966</year>
        </date>
        <date date-type="accepted" iso-8601-date="1966-09-24">
          <day>24</day>
          <month>09</month>
          <year>1966</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1967-09-21">
          <day>21</day>
          <month>09</month>
          <year>1967</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1967 А. И. Талько, Р. М. Петров, Э. А. Вахер</copyright-statement>
        <copyright-statement xml:lang="en">© 1967 A. I. Talko, R. M. Petrov, E. A. Vaher</copyright-statement>
        <copyright-year>1967</copyright-year>
        <copyright-holder xml:lang="ru">А. И. Талько, Р. М. Петров, Э. А. Вахер</copyright-holder>
        <copyright-holder xml:lang="en">A. I. Talko, R. M. Petrov, E. A. Vaher</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/12011">https://pmi.spmi.ru/pmi/article/view/12011</self-uri>
      <abstract xml:lang="ru">
        <p>Совершенствование буровых работ и снижение их себестоимости — одна из актуальных задач Эстонского месторождения горючих сланцев. Объем бурения по известнякам вскрыши для карьеров треста Эстонсланец составил в 1964 г. 501 600 м взрывных скважин диаметром 115 мм. С введением в экс­плуатацию новых карьеров объем бурения возрастет до 1,2 млн. м в год ...</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Improvement of drilling operations and reduction of their costs is one of the urgent tasks of the Estonian oil shale deposit. The volume of overburden limestone drilling for the quarries of the Estonian Oil Shale Trust amounted to 501 600 m of 115 mm diameter blast holes in 1964. With the commissioning of new quarries the drilling volume will increase to 1.2 million meters per year ...</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
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        <label>1</label>
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  </back>
</article>
