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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-9995</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/9995</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">Current state and prospects of geological exploration drilling development</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Современное состояние и перспективы развития геолого-разведочного бурения</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Afanasyev</surname>
            <given-names>I. S.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Афанасьев</surname>
              <given-names>И. С.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Afanasyev</surname>
              <given-names>I. S.</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">Всесоюзный ин-т методики и техники разведки (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">All-Union Institute of Methods and Techniques of Exploration (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1993-06-03">
        <day>03</day>
        <month>06</month>
        <year>1993</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1993</year>
      </pub-date>
      <volume>136</volume>
      <fpage>4</fpage>
      <lpage>5</lpage>
      <history>
        <date date-type="received" iso-8601-date="1992-07-26">
          <day>26</day>
          <month>07</month>
          <year>1992</year>
        </date>
        <date date-type="accepted" iso-8601-date="1992-09-11">
          <day>11</day>
          <month>09</month>
          <year>1992</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1993-06-03">
          <day>03</day>
          <month>06</month>
          <year>1993</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1993 И. С. Афанасьев</copyright-statement>
        <copyright-statement xml:lang="en">© 1993 I. S. Afanasyev</copyright-statement>
        <copyright-year>1993</copyright-year>
        <copyright-holder xml:lang="ru">И. С. Афанасьев</copyright-holder>
        <copyright-holder xml:lang="en">I. S. Afanasyev</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/9995">https://pmi.spmi.ru/pmi/article/view/9995</self-uri>
      <abstract xml:lang="ru">
        <p>В 1988 г. в нашей стране было пробурено скважин на твердые полезные ископаемые объемом более 25,5 млн.м. Очевидно, это был максимум за все годы существования геологической отрасли, и вряд ли в 6yдущем такой объем бурения будет достигнут. Однако за период 1989-1990 гг. объем геолого-разведочного бурения снизился почти на 3 млн.м. Каковы основные причины снижения объемов бурения?</p>
      </abstract>
      <abstract xml:lang="en">
        <p>In 1988 more than 25.5 million meters of wells were drilled for solid minerals in our country. Obviously, this was the maximum for all the years of existence of the geological industry, and it is unlikely that such a volume of drilling will be achieved in the future. However, during the period 1968-1990 the volume of geological exploration drilling decreased by almost 3 million meters. What are the main reasons for the decline in drilling?</p>
      </abstract>
    </article-meta>
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