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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Earth Sciences</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Earth Sciences</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Russian Journal of Earth Sciences</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">1681-1208</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">88746</article-id>
   <article-id pub-id-type="doi">10.2205/2025ES000988</article-id>
   <article-id pub-id-type="edn">hliwkc</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ORIGINAL ARTICLES</subject>
    </subj-group>
    <subj-group>
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Digital Analysis of Changes in Hydrocarbon Reservoir Pore Space Characteristics After Filtration Tests</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Цифровой анализ изменений характеристик порового пространства коллектора углеводородов после проведения фильтрационных испытаний</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2116-6483</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Химуля</surname>
       <given-names>Валерий Владимирович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Khimulia</surname>
       <given-names>Valerii Vladimirovich</given-names>
      </name>
     </name-alternatives>
     <email>valery.khim@gmail.com</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт проблем механики им. А.Ю. Ишлинского РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2025-03-18T00:00:00+03:00">
    <day>18</day>
    <month>03</month>
    <year>2025</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-03-18T00:00:00+03:00">
    <day>18</day>
    <month>03</month>
    <year>2025</year>
   </pub-date>
   <volume>25</volume>
   <issue>1</issue>
   <fpage>1</fpage>
   <lpage>13</lpage>
   <history>
    <date date-type="received" iso-8601-date="2024-09-18T00:00:00+03:00">
     <day>18</day>
     <month>09</month>
     <year>2024</year>
    </date>
    <date date-type="accepted" iso-8601-date="2025-01-14T00:00:00+03:00">
     <day>14</day>
     <month>01</month>
     <year>2025</year>
    </date>
   </history>
   <self-uri xlink:href="https://rjes.ru/en/nauka/article/88746/view">https://rjes.ru/en/nauka/article/88746/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе представлены результаты неразрушающих цифровых исследований остаточных изменений структурных и емкостных свойств коллектора Чаяндинского нефтегазоконденсатного месторождения в результате закачки жидкости гидроразрыва пласта. Получены снимки компьютерной рентгеновской томографии с использованием высокоразрешающего томографа ProСon X-Ray CT-MINI Института проблем механики РАН. На базе снимков созданы 3D модели коллектора для проведения цифрового анализа изменения свойств коллектора после испытаний. Проведено сравнение структуры и взаимного расположения зерен породы до и после испытаний. Выполнена оценка локальных изменений пористости в объеме образцов, включая построение карт пористости для интегрального анализа порового пространства. Построены распределения пор по размерам, сделаны выводы о характере изменения порометрических характеристик пород. На базе цифрового подхода получены значения пористости пород, показано хорошее соответствие с данными лабораторных измерений. Описаны изменения распределения пористости по объему образца крупнозернистого песчаника. Обнаружена неравномерность распределения пористости в образце после испытаний. Предложены обоснования причин описываемого изменения пористости. Показано, что при наличии существенной неоднородности структуры и порового пространства пород, применение традиционных способов измерения фильтрационно-емкостных свойств может оказаться недостаточным для точного описания изменений в породах. Подтверждено, что применение методов неразрушающего анализа позволяет значительно уточнить полученные лабораторным способом результаты измерений  емкостных свойств пород, а в отдельных случаях может стать незаменимым инструментом  для их корректной оценки.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The paper presents the results of non-destructive digital studies of remaining changes in the structural and reservoir volumetric properties of the rocks of the Chayanda oil and gas condensate field as a result of hydraulic fracturing fluid injection. Computed X-ray tomography images were obtained using a high-resolution ProCon X-Ray CT-MINI scanner of the Institute for Problems in Mechanics of the Russian Academy of Sciences. 3D models of the reservoir were created on the basis of the images for digital analysis of the change in reservoir properties after the tests. The structure and relative disposition of rock grains before and after the tests were compared. Local porosity changes in the specimen volume were assessed, including plotting of porosity maps for integral pore space analysis. Pore size distributions were drawn, and conclusions were made about the nature of changes in porometric characteristics of rocks. On the basis of the digital approach the porosity values of rocks were calculated, good agreement with the laboratory measurement data was shown. Changes in porosity distribution over the volume of a specimen of coarse-grained sandstone are described. Uneven distribution of porosity in the specimen after tests is found. Reasons for the described changes in porosity are proposed. It is shown that in the presence of significant heterogeneity of structure and pore space of rocks, the application of traditional methods of reservoir flow properties measurement may be insufficient for accurate characterization of changes in rocks. It is confirmed that the application of nondestructive analysis methods allows to significantly clarify the results of measurements of rock reservoir properties obtained by laboratory method, and in some cases can become an indispensable tool for their correct assessment.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>цифровой анализ керна</kwd>
    <kwd>рентгеновская томография горных пород</kwd>
    <kwd>пористость</kwd>
    <kwd>емкостные свойства коллекторов</kwd>
    <kwd>распределение пористости</kwd>
    <kwd>структура порового пространства</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>X-ray computed tomography of rocks (CT)</kwd>
    <kwd>porosity</kwd>
    <kwd>pore space structure</kwd>
    <kwd>digital core analysis</kwd>
    <kwd>reservoir capacity properties</kwd>
    <kwd>porosity distribution</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания, номер госрегистрации 124012500441-6. Автор выражает благодарность начальнику лаборатории комплексных исследований кернового материала Московского центра исследования пластовых систем (керн и флюиды) ООО «Газпром ВНИИГАЗ» Семенову Евгению Олеговичу, а также заместителю начальника лаборатории физического моделирования многофазных процессов Московского центра исследования пластовых систем (керн и флюиды) ООО «Газпром ВНИИГАЗ» Мизину Андрею Витальевичу за предоставление материала для исследования и проведение цикла лабораторных испытаний образцов.</funding-statement>
    <funding-statement xml:lang="en">The work was carried out within the framework of the state assignment, state registration number 124012500441-6. The author expresses gratitude to the head of the laboratory of complex studies of core material of the Moscow center for the study of reservoir systems (core and fluids) of Gazprom VNIIGAZ LLC Semenov Evgeny Olegovich, and to the deputy head of the laboratory of physical modeling of multiphase processes of the Moscow center for the study of reservoir systems (core and fluids) of Gazprom VNIIGAZ LLC Mizin Andrey Vitalievich for providing the material for the study and conducting a cycle of laboratory tests of the samples.</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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