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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geores</journal-id><journal-title-group><journal-title xml:lang="ru">Георесурсы</journal-title><trans-title-group xml:lang="en"><trans-title>Georesources</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-5043</issn><issn pub-type="epub">1608-5078</issn><publisher><publisher-name>Georesursy LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18599/grs.2026.3.14</article-id><article-id custom-type="elpub" pub-id-type="custom">geores-767</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>Применение рентгенофлуоресцентного анализа бурового шлама для сопровождения бурения горизонтальных скважин на примере ачимовских отложений (часть 2)</article-title><trans-title-group xml:lang="en"><trans-title>Application of X-Ray Fluorescence Analysis of Drill Cuttings for Geosteering Horizontal Wells: A Case Study of the Achimov Formation (Part 2)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Успенская</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Uspenskaya</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Людмила Андреевна Успенская – кандидат геол.-минерал. наук, эксперт департамента разработки месторождений</p><p>Москва</p></bio><bio xml:lang="en"><p>Lyudmila A. Uspenskaya – Cand. Sci. (Geology and Mineralogy), Expert of Field Development Department</p><p>Moscow</p></bio><email xlink:type="simple">lyudmila.uspenskaya@novatek.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шадчнев</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Schadchnev</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Александрович Шадчнев – начальник управления геологического мониторинга разработки месторождений департамента разработки месторождений</p><p>Москва</p></bio><bio xml:lang="en"><p>Nikolay A. Shadchnev – Head of Reservoir Engineering Geological Monitoring Department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мигилев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Migilev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Анатольевич Мигилев – начальник управления петрофизики департамента геологоразведочных работ оценки ресурсной базы</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Anton A. Migilev – Head of Petrophysics Division, Exploration and Resource Base Evaluation Department</p><p>Tyumen</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буткеев</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Butkeev</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Сергеевич Буткеев – заместитель генерального директора – главный геолог</p><p>Новый Уренгой</p></bio><bio xml:lang="en"><p>Andrey S. Butkeev – Deputy General Director – Chief Geologist</p><p>Noviy Urengoy</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Солодовников</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Solodovnikov</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Леонидович Солодовников – заместитель начальника отдела промысловой геологии</p><p>Новый Уренгой</p></bio><bio xml:lang="en"><p>Alexander L. Solodovnikov – Deputy Head of Production Geology Department</p><p>Noviy Urengoy</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karev</surname><given-names>А. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Анатольевич Карев – главный специалист отдела промысловой геологии</p><p>Новый Уренгой</p></bio><bio xml:lang="en"><p>Andrey A. Karev – Chief Specialist of Production Geology Department</p><p>Noviy Urengoy</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маникин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Manikin</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Геннадьевич Маникин – кандидат геол.-минерал. наук, заместитель генерального директора по научно-исследовательской работе; доцент кафедры общей геологии и полезных ископаемых геологического факультета</p><p>Саратов</p></bio><bio xml:lang="en"><p>Alexey G. Manikin – Cand. Sci. (Geology and Mineralogy), Deputy General Director for Research and Development; Associate Professor, Department of General Geology and Mineral Resources</p><p>Saratov</p></bio><email xlink:type="simple">a.manikin@tgeos.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ПАО «НОВАТЭК»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>NOVATEK PJSC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «НОВАТЭК НТЦ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>NOVATEK NTC LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>АО «АРКТИКГАЗ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ARCTICGAS JSC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ООО «Тюменьгеоспектр»; Саратовский государственный университет имени Н.Г. Чернышевского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tyumengeospektr LLC; Saratov State University named after N.G. Chernyshevsky</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>08</day><month>10</month><year>2026</year></pub-date><volume>28</volume><issue>3</issue><fpage>97</fpage><lpage>106</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Успенская Л.А., Шадчнев Н.А., Мигилев А.А., Буткеев А.С., Солодовников А.Л., Карев А.А., Маникин А.Г., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Успенская Л.А., Шадчнев Н.А., Мигилев А.А., Буткеев А.С., Солодовников А.Л., Карев А.А., Маникин А.Г.</copyright-holder><copyright-holder xml:lang="en">Uspenskaya L.A., Schadchnev N.A., Migilev A.A., Butkeev A.S., Solodovnikov A.L., Karev А.А., Manikin A.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.geors.ru/jour/article/view/767">https://www.geors.ru/jour/article/view/767</self-uri><abstract><p>Работа посвящена расширению области применения метода рентгенофлуоресцентного анализа (РФА) бурового шлама в ачимовских отложениях Уренгойского нефтегазоконденсатного месторождения (НГКМ). В первой части выполнена литогеохимическая типизации разреза по данным анализа шлама. Во второй части представлена методика оперативной оценки емкостных свойств пласта при бурении горизонтальных скважин с минимальным комплексом каротажа во время бурения (только гамма-каротаж или его сочетание с удельным электрическим сопротивлением). Авторами предложена упрощенная математическая модель оценки коэффициента пористости (Kп ), основанная на зависимости от концентрации одного элемента-индикатора – цинка (Zn). Приведены результаты «слепого тестирования» модели на разведочной скважине смежной площади, подтвердившие ее достоверность. Обоснована практическая значимость внедрения методики оценки Кп в случае бурения горизонтальных скважин с минимальным комплексом каротажа во время бурения.</p></abstract><trans-abstract xml:lang="en"><p>This paper is dedicated to expanding the application scope of X-ray fluorescence (XRF) analysis of drill cuttings in the Achimov deposits of the Urengoy oil and gas condensate field. The first part of the study addressed the lithogeochemical typing of the section using XRF data from drill cuttings. The second part presents a methodology for the real-time evaluation of formation reservoir properties during horizontal well drilling with a minimal logging-while-drilling (LWD) suite (gamma ray logging only, or its combination with resistivity measurements). The authors propose a simplified mathematical model for evaluating porosity based on the concentration of a single element indicator – zinc (Zn). The results of “blind testing” of the model on an exploratory well from an adjacent area confirm its reliability. The practical significance of implementing this porosity evaluation methodology for drilling horizontal wells with a minimal LWD suite is substantiated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ачимовская толща</kwd><kwd>рентгенофлуоресцентный анализ</kwd><kwd>элементный состав</kwd><kwd>коэффициент пористости</kwd><kwd>буровой шлам</kwd><kwd>геонавигация</kwd><kwd>горизонтальное бурение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Achimov formation</kwd><kwd>X-ray fluorescence analysis</kwd><kwd>elemental composition</kwd><kwd>porosity</kwd><kwd>drill cuttings</kwd><kwd>geosteering</kwd><kwd>horizontal drilling</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Лебедев Б.А. (1992). Геохимия эпигенетических процессов в осадочных бассейнах. 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