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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.2019.2.194</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-13183</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/13183</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">Low-density cement compositions for well cementing under abnormally low reservoir pressure conditions</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Тампонажные составы пониженной плотности для цементи-рования скважин в условиях аномально низких пластов давлений</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Nikolaev</surname>
            <given-names>N. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Николаев</surname>
              <given-names>Н. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Nikolaev</surname>
              <given-names>N. I.</given-names>
            </name>
          </name-alternatives>
          <email>nikinik@mail.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Санкт-Петербург, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint-Petersburg Mining University (Saint-Petersburg, Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Leusheva</surname>
            <given-names>E. L.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Леушева</surname>
              <given-names>Е. Л.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Leusheva</surname>
              <given-names>E. L.</given-names>
            </name>
          </name-alternatives>
          <email>Leusheva_EL@pers.spmi.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Санкт-Петербург, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint-Petersburg Mining University (Saint-Petersburg, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2019-04-23">
        <day>23</day>
        <month>04</month>
        <year>2019</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2019</year>
      </pub-date>
      <volume>236</volume>
      <fpage>194</fpage>
      <lpage>200</lpage>
      <history>
        <date date-type="received" iso-8601-date="2018-11-20">
          <day>20</day>
          <month>11</month>
          <year>2018</year>
        </date>
        <date date-type="accepted" iso-8601-date="2019-01-14">
          <day>14</day>
          <month>01</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2019-04-23">
          <day>23</day>
          <month>04</month>
          <year>2019</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2019 Н. И. Николаев, Е. Л. Леушева</copyright-statement>
        <copyright-statement xml:lang="en">© 2019 N. I. Nikolaev, E. L. Leusheva</copyright-statement>
        <copyright-year>2019</copyright-year>
        <copyright-holder xml:lang="ru">Н. И. Николаев, Е. Л. Леушева</copyright-holder>
        <copyright-holder xml:lang="en">N. I. Nikolaev, E. L. Leusheva</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/13183">https://pmi.spmi.ru/pmi/article/view/13183</self-uri>
      <abstract xml:lang="ru">
        <p>Рассмотрены варианты облегченных тампонажных составов с добавками различных веществ, таких как глинистые компоненты, зольные системы, кремнеземистые добавки, кероген, гильсонит, микросферы, а также процесс аэрирования тампонажного раствора. Представлены рекомендации по применению составов в различных условиях. Снижение плотности раствора достигается не только за счет низкой плотности используемых материалов, но и в результате увеличения водоцементного отношения. В таких условиях не удается обеспечить формирование в скважине прочного и непроницаемого цементного камня, создающего высокое качество межпластовой изоляции. Даны характеристики физико-механических свойств существующих облегчающих добавок, позволяющие определять наиболее рациональные условия использования тампонажных растворов для повышения качества цементирования скважин.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The paper considers variants of lightweight cement compositions with additives of various substances, such as clay components, ash systems, silica additives, kerogen, gilsonite, microspheres, as well as the process of cement slurry aeration. Recommendations on the use of compositions in different conditions are presented. A decrease in the density of the solution is achieved not only due to the low density of the materials used, but also as a result of an increase in the water-cement ratio. In such conditions, it is not possible to ensure the formation of a durable and impermeable cement stone in the well, which creates high quality inter-reservoir insulation. The characteristics of the physical and mechanical properties of existing lightening additives are given, which allows determining the most rational conditions for the use of cement slurries for improvement of the well cementing quality.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>тампонажный раствор</kwd>
        <kwd>аномально низкое пластовое давление</kwd>
        <kwd>цементирование</kwd>
        <kwd>облегчающие добавки</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>cement slurry</kwd>
        <kwd>abnormal low reservoir pressure</kwd>
        <kwd>cementing</kwd>
        <kwd>lightweight additives</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
