Казанский (Приволжский) федеральный университет, КФУ
КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
ANALYSIS OF THE COMPOSITION AND PROPERTIES OF HEAVY OILS IN SITU BY LOW FIELD NMR RELAXATION METHOD
Форма представленияСтатьи в российских журналах и сборниках
Год публикации2018
Языканглийский
  • Волков Владимир Яковлевич, автор
  • Нургалиев Данис Карлович, автор
  • Хасанова Наиля Мидхатовна, автор
  • Сахаров Борис Васильевич, автор
  • Библиографическое описание на языке оригинала Volkov V.Ya.Analysis of the composition and properties of heavy oils in situ by Low Field NMR relaxation method / Volkov V.Ya, Sakharov B.V., Khasanova N.M., Nurgaliev D.K.//Georesources.- 2018, - 20(4), Part 1, pp. 308-323. DOI: https://doi.org/10.18599/grs.2018.4.308-323
    Аннотация A special control program was created on the NMR analyzer that automatically tunes and measures the full FID curve, then switches to measuring the decay of the echo amplitude by the CPMG pulse sequence, and then the investigation ends with a joint processing of all the experimental data. This method makes it possible to measure the amplitudes of NMR signals and the relaxation times T2 of protons of heavy oil components in situ, including asphaltenes, without any perturbations in the analyzed system. Under the influence of paramagnetic centers located in asphaltenes,the amplitude-relaxation characteristics of oil protons are divided into 7 groups associated with solid asphaltenes in crystalline and amorphous states, resins with high and low density, aromatic and saturated compounds. The NMR amplitudes of these fractions correlate well with the group composition of heavy oils as determined by gravitational-chromatographic SARA method. SARA-NMR can be recommended to study oil c. in situ
    Ключевые слова LF-NMR, vanadyl, SARA, asphaltenes, resins, saturated, aromatic compounds
    Название журнала Georesources
    URL https://doi.org/10.18599/grs.2018.4.308-323
    Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку https://repository.kpfu.ru/?p_id=193707

    Полная запись метаданных