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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-7756</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/7756</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Экология и охрана окружающей среды</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>ECOLOGY AND ENVIRONMENT</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Estimation of foam drilling mud stability using digital image processing</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Оценка стабильности пенного бурового раствора с использованием цифровой обработки изображения</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Ipatov</surname>
            <given-names>A. </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Ипатов</surname>
              <given-names>А. </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Ipatov</surname>
              <given-names>A. </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">Фрайбергская горная академия (Германия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Freiberg Mining Academy (Germany)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2007-04-11">
        <day>11</day>
        <month>04</month>
        <year>2007</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2007</year>
      </pub-date>
      <volume>170</volume>
      <issue>2</issue>
      <fpage>220</fpage>
      <lpage>223</lpage>
      <history>
        <date date-type="received" iso-8601-date="2006-08-23">
          <day>23</day>
          <month>08</month>
          <year>2006</year>
        </date>
        <date date-type="accepted" iso-8601-date="2006-10-13">
          <day>13</day>
          <month>10</month>
          <year>2006</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2007-04-11">
          <day>11</day>
          <month>04</month>
          <year>2007</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2007 А.  Ипатов</copyright-statement>
        <copyright-statement xml:lang="en">© 2007 A.  Ipatov</copyright-statement>
        <copyright-year>2007</copyright-year>
        <copyright-holder xml:lang="ru">А.  Ипатов</copyright-holder>
        <copyright-holder xml:lang="en">A.  Ipatov</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/7756">https://pmi.spmi.ru/pmi/article/view/7756</self-uri>
      <abstract xml:lang="ru">
        <p>Стабильность пены является важным параметром для многих технических дисциплин, включая нефтегазовое дело. Оценка поведения пенного бурового раствора в условиях пласта необходима для качественного проведения буровых операций. Существует целый ряд аспектов, которые необходимо учитывать: повышенные давление и температура, изменение состояния пены во времени, свойства ПАВ и т.д. В настояшее время ни одна модель, учитывающая все эти аспекты, не является достаточно развитой. Данная работа ориентирована на исследование стабильности пены методом цифровой обработки фотоизображения. Лабораторные тесты проводились с известным ПАВ при определенной концентрации раствора и при заданных давлении и температуре. Фотографии пены были проанализированы методом цифровой обработки изображения и преобразованы в числовые параметры – средний размер пузырьков, их округлость (компактность) и т.д. как функция времени. Результаты позволяют судить о стабильности пенного раствора в каждый конкретный момент времени.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Foam stability is an important factor for many engineering applications, including oil and gas practice. The evaluation of formation behavior in drilling fluid foam is essential for efficient drilling operations. Several aspects such as high pressure and temperature, change in foam state over time, surfactant characteristics, etc. need to be considered. At present, none of the existing models considering these parameters are well developed. In this paper, foam stability is studied using digital image processing. Laboratory studies were carried out using a conventional surfactant with a given solution concentration and at fixed values of pressure and temperature. Images of the foam were taken at intervals during each test. They were further analyzed using digital image processing technology and interpreted as numerical parameters: average bubble size, bubble roundness (compactness), etc. as a function of time. The results of such interpretation allow us to assess the stability of the foam at each specific moment of time.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
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        <label>1</label>
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</article>
