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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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2022-6-52-59</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1614</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>ЭЛЕКТРОМАГНИТНЫЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTROMAGNETIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Мультифазный ядерно-магнитный расходомер-релаксометр для контроля состояния и быстроизменяющихся расходов нефтяных смесей</article-title><trans-title-group xml:lang="en"><trans-title>Multiphase nuclear-magnetic flowmeter-relaxometer for control of condition and rapidly changing expenditures of oil mixtures</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9530-4805</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Давыдов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Davydov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вадим Владимирович Давыдов</p><p>Санкт-Петербург; р. п. Большие Вяземы, Московская обл.</p></bio><bio xml:lang="en"><p>Vadim V. Davydov</p><p>St. Petersburg; Bolshye Vyazyomy, Moscow Region</p></bio><email xlink:type="simple">davydov_vadim66@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9423-9068</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мязин</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Myazin</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никита Сергеевич Мязин</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Nikita S. Myazin</p><p>St. Petersburg</p></bio><email xlink:type="simple">myazin.n@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1958-4221</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Давыдов</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Davydov</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роман Вадимович Давыдов</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Roman V. Davydov</p><p>St. Petersburg</p></bio><email xlink:type="simple">romanvproze@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский политехнический университет Петра Великого; Всероссийский научно-исследовательский институт фитопатологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great Saint Petersburg Polytechnic University; All Russian Research Institute of Phytopathology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет телекоммуникаций им. проф. М. А. Бонч-Бруевича</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great Saint Petersburg Polytechnic University;The Bonch-Bruevich St. Petersburg State University of Telecommunication</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Санкт-Петербургский политехнический университет Петра Великого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great Saint Petersburg Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>13</day><month>05</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>52</fpage><lpage>59</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/1614">https://www.izmt.ru/jour/article/view/1614</self-uri><abstract><p>Обоснована необходимость улучшения первичной очистки (сепарации) нефти в условиях буровой станции или морской платформы и описаны возникающие при этом проблемы. Определены условия повышения эффективности первичной очистки нефтяной смеси. Для измерения расхода и контроля состояния нефтяной смеси, поступающей из скважины, рассмотрены возможности использования оптических приборов и расходомеров различных конструкций, в частности, ядерно-магнитных расходомеров-релаксометров. Описана конструкция промышленного ядерно-магнитного расходомера-релаксометра M-Phase 5000, который применяется для контроля расхода и качества нефти и нефтепродуктов, и установлены проблемы, не позволяющие его использовать в условиях буровой установки или морской платформы. Разработана конструкция ядерно-магнитного расходомера-релаксометра, в которой реализованы различные модуляционные методики для измерения расхода и времён продольной и поперечной релаксаций нефтяной смеси. Использование этих методик и предложенных технических решений позволяет применять данный прибор на буровой станции и морской платформе. Представлены результаты исследований различных сред разработанным прибором.</p></abstract><trans-abstract xml:lang="en"><p>The necessity of improving the primary purification of oil in the conditions of a drilling station or an off shore platform is substantiated. The problems that arise in these situations are noted. One of the conditions for increasing the efficiency of the primary treatment (separation) of an oil mixture. The possibilities of using different designs offlowmeters to measure the flow rate q of the oil mixture coming from the well and various devices for monitoring its condition are considered. The analysis of designs of nuclear-magnetic flowmeters-relaxometers is carried out. The design of the industrial nuclear magnetic flowmeter-relaxometer M-Phase 5000, which is used to control the flow and quality of oil and oil products, is considered in detail. Problems have been identified that do not allow the use of a nuclear magnetic flowmeter - the M-Phase 5000 relaxometer in a drilling rig or offshore platform. A new design of a nuclear magnetic flowmeter-relaxometer has been developed, in which modulation methods for measuring q, T1 and T2 are implemented. The use of these techniques and various technical solutions makes it possible to use this device at a drilling station or offshore platform. The results of studies of various media are presented.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нефтяная смесь</kwd><kwd>поток</kwd><kwd>расход</kwd><kwd>состояние среды</kwd><kwd>примеси</kwd><kwd>очистка</kwd><kwd>трубопровод</kwd><kwd>ядерный магнитный резонанс</kwd><kwd>время продольной релаксации</kwd><kwd>время поперечной релаксации</kwd><kwd>отношение сигнал/шум</kwd><kwd>погрешность измерения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>oil mixture</kwd><kwd>stream</kwd><kwd>expenditure</kwd><kwd>medium state</kwd><kwd>impurities</kwd><kwd>cleaning</kwd><kwd>pipeline</kwd><kwd>nuclear magnetic resonance</kwd><kwd>longitudinal T1 and transverse T2 relaxation times</kwd><kwd>signal-to-noise ratio</kwd><kwd>measurement error</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке РФФИ в рамках научного проекта № 20-32-90012.</funding-statement><funding-statement xml:lang="en">The study was supported by the Russian Foundation for Basic Research within the framework of research project no. 20-32-90012.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Chen Z., Wang L., Wei Z., Wang Y., Deng J., Energy, 2022, vol. 244, 123147. https://doi.org/10.1016/j.energy.2022.123147</mixed-citation><mixed-citation xml:lang="en">Chen Z., Wang L., Wei Z., Wang Y., Deng J., Energy, 2022, vol. 244, 123147. https://doi.org/10.1016/j.energy.2022.123147</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Xu Y., Lun Z., Pan Z., Zhao C., Zhang D., Journal of Petroleum Science and Engineering, 2022, vol. 211, 110183. https://doi.org/10.1016/j.petrol.2022.110183</mixed-citation><mixed-citation xml:lang="en">Xu Y., Lun Z., Pan Z., Zhao C., Zhang D., Journal of Petroleum Science and Engineering, 2022, vol. 211, 110183. https://doi.org/10.1016/j.petrol.2022.110183</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">De Robbio R., Cameretti M. 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