Abetov Auez Egemberdieviсh

Abetov Auez Egemberdieviсh

Doctor of Geological and Mineralogical Sciences

Professor

Head of Department

Geology and Oil-gas Business Institute named after K. Turyssov

Department of "Geophysics"

Email: abetov.auez@mail.333

H-index:
3

PhD count:
4

Professional biography

      Being a member of the “Institute of Geology and Geophysics” (Uzbekistan Academy of Sciences) I studied the deep structure, geological evolution, petrographic composition and rheological properties of the consolidated crust in Central Asia, Kazakhstan and adjacent regions, as well as investigated the impact of consolidated crust on the geological structure, evolution and hydrocarbon potential of the sedimentary cover at these regions (Engineer, Senior Engineer, Junior Researcher, Researcher) in 1987-1991;

     In 2002 - 2003 Head of Laboratory "Structures of lithosphere" (combined duties). For a number of years (1997-2003) I was a member of the Expert Council under the State Committee on Science and Technology of Uzbekistan, and an Expert at the Higher Attestation Commission at the Academy of Sciences of Uzbekistan (combined duties). I have experience in seismic data acquisition (1980 - 1984) while working as Assistant Geophysicist, Geophysicist in “UzbekGeophysica" (State Production Company, Uzbekistan) in Ustyurt region.

    In 1984-1986, I was a PhD student of the “Institute of Earth Physics, Academy Sciences of the USSR” (Moscow). I am a member of the SPE, SEG, and local scientific communities, the author/co-author of more than 200 scientific and technical publications, reports, two monographs, annual overviews and analytical applications for geology, geophysics and production by regions of work.

     I regularly take part in the annual technical Schlumberger symposiums and SPE conferences, including preparation of articles and presentations. Fluent in Russian, English, Kazakh and Uzbek languages. Computer skills - Windows (Word, Excel, Power Point). Available certificates – Islamabad Training Institute, Petrel Geological Modeling (advanced), MMRD (ISIS), TECHLOG, SFEP (Sales for Experienced Professional), PSQL and Play-to-Prospect. Periodically lectured on topical areas of Petroleum Geology for various segments within Schlumberger, as well as for students of local universities (Astrakhan, Almaty, and Tashkent). Organization of scientific and technical conferences for students.Training and mentoring of newcomers and other specialists. Reviews of dissertation abstracts for the degree of candidate (PhD for Geology) and doctor of geological and mineralogical sciences.

     In 1996-1998, worked as a Senior Lecturer at Tashkent State University (part-time). Job instructor Schlumberger NExT program; lectures designed for the Russian audience: "Applied geology of oil and gas", "Seismic Fundamentals", "Structural Geology" for external Customers and internal for Schlumberger staff. According to published literature, internet, materials of conferences, symposiums and other communication channels I regularly perform monitoring for new technologies, methods, techniques and geophysical tools in the exploration and production of hydrocarbons in sedimentary basins with different geological structure, as well as for publications that reflect new information on the lithology, tectonics, reservoir properties, oil and gas potential, thermodynamics and other reservoir characteristics concerning geological exploration, oil and gas production on fields in the petroleum basins of Central Asia , Kazakhstan, Russia and adjacent states.

      Awards:

     1. Medal "Miner's glory" III degree 11.12.2020,

     2. Jubilee medal "120 years since the birth of K.I. Satpayev" 12.04.2019

     3. Order of A. Baitursynov - for outstanding contribution to the development of the education and science system of Kazakhstan and outstanding work on preparation   highly qualified specialists.15.12.2021

     Acknowledgements:

     1. From the European Association of Geoscientists and Engineers for assistance in organizing and holding the 15th Scientific and Practical conference and exhibition "Engineering and Ore Geophysics 2019" and the first conference "Marine Technologies 2019", which took place in Gelendzhik from April 22 to 26, 2019. (General Director of LLC "EAGE Geomodel" Novikov M.).

     2.  For assistance in holding a series of events in Gelendzhik: "Engineering and Ore Geophysics 2021", "Engineering and Ore Geology 2021", "Marine Technologies 2021" and an international seminar (Marcel van Loon, Executive Director, EAGE).

     3. For conscientious work and high professionalism, as well as the training of highly professional personnel, for their contribution to the formation and development of the industry In honor of the professional holiday of the Oil and Gas Complex Worker's Day, (General Director of the association "KAZENEREGY" K.N. Ibrashev, 4.09.2021).

      4. For high professionalism in the training of qualified specialists, for many years of work in the development of the oil and gas industry of the Republic of Kazakhstan. In connection with the professional holiday - the Day of Oil and Gas Industry Workers of the Republic of Kazakhstan (Chairman of the Board of the NGO "VNGC" Karabalin U., 4.09.2021)

      5.  To the 25th anniversary of independence of the Republic of Kazakhstan. For many years of work and professionalism in the training of qualified specialists (Rector of KazNITU named after K.I. Satpayev Beisembetov I.K., 2016).

      6. Certificate of gratitude. For services to the Perm International Forum "Science and Global Challenges of the 21st Century" as an effective manager of the "International Supervisory Board". December 14, 2021.

     7. To the 30th anniversary of the independence of the Republic of Kazakhstan. For many years of work and professionalism in the training of qualified specialists (Rector of KazNRTU named after K.I. Satpayev, Begintaev M.M., 2021).

     Certificates of honor:

     1. Certificate of Honor "For contribution to the development of the education system and improving the quality of education on the path of spiritual and social development of independent Kazakhstan" from the Ministry of Education and Science of the Republic of Kazakhstan (from the Minister of Education and Science Aimagambetov A, December 2020).

    2. For fruitful work and significant contribution to the development of the University (from the Head of the Rector's Office - B.H. Myktybayev, December 2020).

    3. For conscientious work in the education system, success in educational and educational work and in connection with the professional holiday "Geologist's Day" (from the Vice-rector for Academic Work Iskakov R.M., March 2015).

    4. For success in organizing and improving the educational process and the introduction of modern methods in the educational process. In connection with the professional holiday "Geologist's Day" (Rector of KazNITU M.M. Begentaev, April 2022).

     Certificates for participation in international scientific-technical, scientific-practical and applied conferences:

    1. "Main problems of hydrocarbon reserves growth" - Almaty, Satbayev University, International Center for Analysis and Development of Fields, May 2022.

    2. "Fundamental and applied aspects of geology, ecology and chemistry using modern educational technologies" - Almaty, Satbayev University, Valikhanov University. The conference is dedicated to the 55th anniversary of the birth of a scientist, engineer-geologist, candidate of geological and mineralogical sciences, professor of the Russian Academy of Natural Sciences, corresponding member of the AID RK Zharkinbekov T.N.

     3. XXVII International Conference "European Academy of Sciences and Research. Section of Geosciences" - Hamburg, Germany, April 2022.

      Patents and patent research:

      Copyright certificate of state registration No. 0928 dated April 4, 2018 for the object of copyright under the title: "Methodological recommendations for the assessment of resources and calculation of methane reserves in coal seams as an independent mineral" (authors Abetov A.E., Cherniyazdanov Ch.A., Mullagaliev F.A., Tolyspaev E.T.).

      Related to studies on sedimentary rock basins of Central Asia, Kazakhstan, Azerbaijan, Georgia, Northern Iraq, including:

     a) interpretation of 2D and 3D seismic data, 3D physical and geological iterative modeling, integrated analysis of geological, geophysical and field data on areas and deposits;

    b) reconstructions of paleotectonic and paleogeographic sedimentation environments, determination of genetic productivity potential, calculation of hydrocarbon resources, analysis of uncertainties (risks), assessment of oil and gas potential for oil and gas fields;

    c) seismic facies analysis of sedimentary complexes of different ages, identification of potentially oil and gas bearing zones and intervals, prediction of sites with possible hydrocarbon traps and basin modeling;

    d) studies of the composition, structure, conditions of occurrence and the nature of saturation of promising oil and gas complexes of rocks;

     e) coordination and monitoring of geological and geophysical work and assessment of geological risks during well drilling.

     Participation in the organization of scientific and practical conferences:

    1.14th EAGE Scientific and Practical Conference and Exhibition "Engineering and Mining Geophysics 2018" (Almaty, April 24-27, 2018) and 15th EAGE Scientific and Practical Conference and "Participation in the organization and holding of the exhibition" Marine Technologies 2019" (April 22-26, 2019 in Gelendzhik), the 17th EAGE scientific and practical conference and "Participation in the organization and holding of the Marine Technologies 2021 exhibition" (April 26-30, 2021 in Gelendzhik)

2. Participation in the organization and holding of the International scientific and practical conference "Innovative technologies - the key to successful solution of fundamental and applied problems in the mining and oil and gas sectors of the economy of Kazakhstan", dedicated to the 120th anniversary of Academician K.I.Satpaev and 85 years of KazNITU.

3. Participation in the organization and holding of the International Scientific and Practical Conference "Science and Global Challenges of the 21st Century" - Perm State Technical University, 2021.

Education

Doctor of Sciences in Geology and Mineralogy (title: 04.00.17 - geology, prospecting and exploration of oil and gas fields): Tashkent, NEFTEGASNAUKA (Scientific & Research Institute), 1997. PhD for Geology (titles: 04.00.12 - Geophysical methods for petroleum exploration and 04.00.04 - Geotectonic): Moscow, VNIIYAG (Scientific & Research Institute, Russia), 1989.

Scientific projects

1. “Reconstruction of drainage channel No. 1 with vertical drainage at the tailing pond of the tailings storage workshop of the Balkhash enrichment plant”

2. “Scientific and technical support for design work on geological and hydrodynamic modeling, calculation and balancing of each mine in the contract area of ​​ArcelorMittal Temirtau JSC, development of a feasibility study for ground-based infrastructure for the extraction and processing of coal methane”

Publications

1. Abetov, A. Niyazova, A. Saurikov, Z. 3d modeling of euler’s points for geodensity and geomagnetic models of north ustyurt region in geosoft oasis montaj. News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences. 2017 | journal-article

2. Deliya, S.V. Valisevich, A.Y. Abetov, A.E. Bulybenko, K.A. Khusainov, R.F. New technologies application to solve practical challenges in exploration and development of HC in the Russian sector of Caspian SeaSociety of Petroleum Engineers. SPE Arctic and Extreme Environments Conference and Exhibition, AEE 2013. 2013 | conference-paper

3. Grib, N.N., Uzbekov, A.N., Imaev, V.S., Grib, G.V., Abetov, A.E.Variations in the Geoelectric Properties of the Rock Masses as a Result of the Seismic Effects of Industrial Explosions. OP Conference Series: Earth and Environmental Science. Volume 362, Issue 1, 15 November 2019, Номер статьи 0121205th World Multidisciplinary Earth Sciences Symposium, WMESS 2019; Prague; Czech Republic; 9 September 2019 до 13 September 2019

4. Abetov, A.V., Atabayev, K.A., Babadzhanov, T.L, Yusupkhodzhayev, K.I., Yachmennikov, Y.M.  Deep structure of central Asia. 1992. International Geology Review. 34(3), с. 279-297

5. Abetov A., Niyazova A., Saurikov, Zh.  Anomalies gravity field zoning of North Ustyurt and relation with basement structure //  Cambridge University Press, ISSN: 0016-7568

6. Abetov А., Volozh Yu., Niyazova A. Correlation of the structural elements of major geostuctures of North Ustyurt region. News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences, Almaty, ISSN 2518-170X (Online), ISSN 2224-5278 (Print) Volume 2, Number 440 (2020), 21 – 30 p

7. Abetov А., Volozh Yu., Niyazova A.  Корреляционный анализ основных границ осадочного чехла Cеверо-Устюртского региона. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering is peer-reviewed journal owned by Tomsk Polytechnic University. 2019. Т. 330. No 12. 179–188 DOI 10.18799/24131830/2019/12/2418

8. Abetov A., Niyazova A., Abetova S. Корреляция аномалий гравитационного и геомагнитного полей в пределах крупных геоструктур Северо-Устюртского региона. Vestnik Satbayev University, Almaty, 2017 г. №6

9. Abetov, A. Niyazova, A. Saurikov, Zh. Position of singular Euler points geomagnetic and density models of North Ustyurt region. Vestnik Satbayev University, Almaty, 2018. №4

10. Abetov A., Niyazova A. Deep structure of the consolidated crust of main geostructures of the North-Ustyurt region. Vestnik Satbayev University, Almaty, 2019. №5 (135) 43-51 р.

11. Abetov A., Niyazova A. Geological evolution of North Ustyurt region and adjacent areas in Triassic. Геология и охрана недр №1 (74) 2020, Almaty ISS-2414-4282. 31 - 39 p.

12. Abetov A., Niyazova A. Юрский этап в истории геологического развития Северо-Устюртского региона. Vestnik Satbayev University, Almaty, 2020. №4 (140) 33-41 р.

13. Abetov A., Niyazova A. Аномальные геомагнитные поля Северного Устюрта. Статья. Материалы XXI международной научной конференции «Теория и практика современной науки», Москва, 2016

14. Abetov A., Niyazova A. Региональные особенности геологического строения Северного Устюрта по данным гравиразведки. Актуальные проблемы геологии, геофизики и металлогении, Ташкент, 2017

15. Abetov, A. Niyazova, A. Saurikov, Zh. Распределение верхних кромок  магнитовозмущающих объектов и идентификация  основной гравивозмущающей границы в осадочном чехле Северо-Устюртского региона по результатам объемного моделирования точек Эйлера. XXXII Международная научно-практическая конференция «Актуальные проблемы в современной науке и пути их решения» Россия, Москва, 2017. ISSN – 2411-6467

16. Abetov A., Niyazova A. Глубинное строение и геофизические поля Cеверо-Устюртского региона. Сборник материалов международной научно-практической конференции «Актуальные проблемы нефтегазовой геологии и инновационные методы и технологии освоения углеводородного потенциала недр», Ташкент, октябрь 2019. 272-280 p.

17. Abetov A., Niyazova A. История геологического развития Северо-Устюртского региона в палеозойское время. Актуальные научные исследования в современном мире // Журнал - Украина, 2020. - Вып. 3(59), ч. 2 – 122 p. ISSN 2524-0986.  March, 2020

18. Abetov A.E, A.N.Uzbekov, N.N.Grib, V.I.Imaev. Newest Tectonics and Modern Geodinamiсs of Mining Industrial areas of Central Kazakhstan-IOP Conference Series: Earth and Enviroment Science, 459 (2020). 042011.

19. Abetov А.Е., Salauvatova А.Е. Структурно-формационные, фильтрационно-емкостные и промысловые характеристики 3-его объекта разработки на северном фланге Карачаганакского нефтегазоконденсатного месторождения - Теория и практика разведочной и промысловой геофизики: сб. научных трудов. Перм.гос.нац.исслед.ун-т, Perm 2019, p. 31-41.

20. Abetov А.Е., Kudaibergenova S. Факторы геодинамического риска на примере месторождения углеводородов Бузачинского свода - Новые направления нефтегазовой геологии и геохимии. Сб.материалов II научной конференции. Перм.гос.нац.исслед.ун-т, Perm 2019, p.9-17.

21. Abetov А.Е., Abetova S.А. Динамическая интерпретация сейсмофаций в современном программном обеспечении - Новые направления нефтегазовой геологии и геохимии. Сб.материалов II научной конференции. Перм.гос.нац.исслед.ун-т, Perm 2019, p.100-110.

22. Abetov A.E., Kolomatskaya O.V. Extraction of systems and fractured zones in compelexy structured resevoirs in Geoteric software using logging data and laboratory analysis of core samples- Geology and bowers of the Earth, 3(72) 2019, p.48-53.

23. Abetov А.Е., Uzbekov А.N. Глубинное строение Центрального Казахстана –Vestnik Satbayev University, Almaty, 2019, №6 (136) p.28-34

24. Abetov A.E., Kolomatskaya O.V. Прикаспийская впадина: применение программного обеспечения GeoTeric для выделения систем тектонических нарушений и зон трещиноватости в турнейских cложнопостроенных коллекторах – Oil and gas №4 (112), 2019, p. 62-74.

25. Abetov A.Е., Mullagaliyev F.А., Kolikov K. Проблемы и перспективы извлечения метана в Карагандинском угольном бассейне – Наука и техника в газовой промышленности, OOO Gazprom design (St. Petersburg),  2018, p. 87-95.

26. Abetov A.Е. Mullagaliyev F.А., Kolikov K. Разведка и добыча метана угольных пластов, проблемы и перспективы дегазации в Карагандинском угольном бассейне - «Geology and subsurface protection», №2, 2018, р.10-17.

27. Abetov A.E., Uzbekov A.N. Глубинное строение и сейсмоактивные районы Центрального Казахстана – Актуальные проблемы нефтегазовой геологии и инновационные методы и технологии освоения углеводородного потенциала недр. Сб материалов международной конференции. Tashkent 2019, p. 281-285.

28. Abetov A.E., Uzbekov A.N., Akhmetov A.A. Тепловые поля Центрального Казахстана- Vestnik Satbayev University, Almaty, 2019, №4 (134) p.355-360.

27. Saginbayeva А.N., Abetov А.Е., Djaikieva S.S. Сравнительный анализ петрофизических моделей пластов-коллекторов Ю-13 и Ю-14 горизонтов на газо-нефтяном месторождении Узень - Современные методы разработки месторождений с трудно извлекаемыми запасами и нетрадиционными коллекторами. Сб. материалов международной научно-практической конференции. Atyrau, 2019, p.424-434.

28. Abetov А.Е., Abetova S.А.Интерпретация тектонических нарушений в объектах моделирования с использованием алгоритма «Ant-tracking» в программном обеспечении Petrel* - «Геология и охрана недр», Алматы,  №4, 2017г., с.51-55, 2017

29. Abetov A.E., Uzbekov A.N. Гравитационное поле и его составляющие территории Центрального Казахстана- Геология и охрана недр, Адматы 2(71) 2019.    

30. Abetov A.E., Uzbekov A.N. Anomaleus magnetic field of Central Kazakhstan- Геология и охрана недр, Алматы 4(69) 2018.

31. Abetov A.E., Uzbekov A.N. Техногенная и тектоническая сейсмичность в Центральном Казахстане- Труды XXII Международного симпозиума  имени академика М.А. Усова,  посвященного 155-летию со дня рождения академика В.А. Обручева, 135-летию со дня рождения академика М.А. Усова, основателей Сибирской горно-геологической школы,  и 110-летию первого выпуска горных инженеров в Сибири. Проблемы геологии  и освоения недр, Tomsk 2018, Т. I, р. 441-444.

32. Abetov А.Е., Ten V.V. Миграционные преобразования в сейсморазведке МОГТ при решении задач выделения  криволинейных и наклонных границ -    Труды XXII Международного симпозиума  имени академика М.А. Усова,  посвященного 155-летию со дня рождения академика В.А. Обручева, 135-летию со дня рождения академика М.А. Усова, основателей Сибирской горно-геологической школы,  и 110-летию первого выпуска горных инженеров в Сибири. Проблемы геологии и освоения недр, Tomsk 2018, T. I, р. 452-454.

33. Abetov A.Е. Mullagaliyev F.А., Kolikov K. Разведка и добыча метана угольных пластов, проблемы и перспективы дегазации в Карагандинском угольном бассейне - VII семинар «Добыча метана из угольных отложений. Проблемы и перспективы», 12 april 2018, Russian State University of Oil and Gas (NRU) named after I.M. Gubkin, Moscow.

34. Abetov A.E., Uzbekov A.N., Grib N.N., Imaev V.S. Newest tectonics and modern geodynamics of mining industrial areas of Central Kazakhstan - IOP Conference Series: Earth and Environment Science. 2020.

35. Abetov A.E., Niyazova A.T. Geological evolution of North Ustyurt region and adjacent areas in Triassic - Geology and protection of subsoil, Almaty, Volume 1 (2020). ISS-2414-4282.

36. A.E. Abetov., D.B. Mukanov. Kazakhstan Code of Public Reporting on the Results of Geological Exploration, Resources and Reserves of Oil and Gas-Integration of the International Geological Community - Bulletin of KazNITU, Almaty, 2020, No. 5 (141) pp.17-24.

37. Abetov A.E., Dr.Grib N.N., Uzbekov A.N., Melnikov, A.E., Malinin, Y.A. Spatial variability of physical and mechanical properties of rock mass in Central Kazakhstan | Variabilidade espacial de propriedades físicas e mecânicas de massa rochosa no Cazaquistão Central. Periodico Tche Quimica, 2020, 17(34), p. 718-726.

38. Abetov A.E., Uzbekov A.N. Geophysical fields, tectonics and metallogeny of Central Kazakhstan - Geology and subsoil protection No. 3 (76) 2020, 13 p.

39. Abetov A. Ye., Essirkepova Sh.B., Kozhamsugirov D. Effectiveness of aerogamma-spectrometric research in solving applied problems of oil and gas geology - Geology and subsoil protection / issue 1(78) 2021.,

40. Abetov A.E., Yessirkepova Sh.B. Curto Ma J. Geomagnetic field transforms and their interpretation at exploration for hydrocarbon field in the southern part of the ustyurt region.  News of NAS RK. Series of geology and technical sciences, 2021, vol. 6.

41. Abetov A.E., Kudaibergenova S. S.  Integrated research of suffosion and karst processes at the KOGCF by geological and geophysical and geodesic methods. News of NAS RK. Series of geology and technical sciences, 2021, vol. 5, p.6-14.

42. Abetov A.E., Kudaibergenova S. S., Sidorov V.A. Conceptual approach to monitoring of land surface deformations in hydrocarbon fields. European Association of Geologists and Engineers, ISSN 2214-4609, Proceedings of the 17th Scientific and Practical Conference EAGE - Engineering and Mining Geophysics 2021, April 2021, Gelendzhik, Volume 2021, 1 - 11p

43. Abetov A.E., Kudaibergenova S. S. Creation of geodynamic polygons and technologies of geodynamic monitoring in hydrocarbon fields. Vestnik Satbayev University, Vol. 143 No. 3, Almaty, 2021.

44. Abetov A.E., Kudaibergenova S. S. Proceedings of the II scientific conference: New directions of oil and gas geology and geochemistry Development of geological prospecting. - Perm, 2019. - p. 9-17.

Potential research studies of doctoral students

1. Zonal and local prediction of oil and gas - bearing in modern software (based on the example of sedimentary basins of Kazakhstan).

2. Rational set of geological and geophysical methods in the exploration for hydrocarbon deposits (based on the example of oil and gas basins in Kazakhstan).

3. Modern technologies of geodynamic monitoring in the study and mapping of rapidly changing technogenic processes at the hydrocarbon fields.

4. Petrophysical interpretation and geological and hydrodynamic modeling of methane-coal bed methane (based on the example of Tentekskaya and Dolinskaya suites of the Karaganda coal basin).

5. Seismic facies analysis of different ages sedimentary complexes, identification of potentially oil and gas bearing zones and intervals, forecasting areas with possible hydrocarbon traps using "Hi-Tech" modern software.

6.  Basin modeling (petroleum systems study in sedimentary basins using paleogeographic, paleotectonic and paleogeochemical methods).

7. Basin modeling (petroleum systems study in sedimentary basins) using "Hi-Tech" modern software.

8. Integrated interpretation and modeling of ore-bearing provinces, nodes and zones according to its potential geophysical fields, deep structure and seismicity.

9. Geological structure and prospects of oil and gas bearing of Paleozoic sediments of sedimentary basins of Kazakhstan based on the set of geological and geophysical data.

10. Rifting processes of in the geological history of oil and gas bearing basins in Kazakhstan based on geological and geophysical data.

11.2D and 3D seismic data interpretation, static 3D iterative modeling of horizons and layers, integrated analysis of geological and geophysical and field data by areas and fields. The objects of modeling are complexly constructed carbonate and clastic reservoirs in structural and non-structural traps, low-productivity reservoirs.

12. Development of the main areas of scientific research for promising for the discovery of mineral deposits. Assessment of it prospects at the areas and horizons. Identification, mapping and preparation of structures for deep drilling, comprehensive analysis of geological and geophysical and field data.

13. Reconstruction of paleotectonic and paleogeographic environments of sedimentation, determination of the genetic potential of productivity, analysis of uncertainties (risks), assessment of the prospects for oil and gas content of areas and individual horizons for oil and gas fields in Kazakhstan.

14. Justification of the location of prospecting, exploration and production wells. Justification for conducting seismic surveys of different scales, for the resumption of exploration work in areas taken out of exploration drilling with direct signs of oil and gas.

15. System analysis of geological and geophysical and field data. Operational analysis of geological exploration for oil and gas, identification of the most promising areas and targets for exploration / additional exploration, analysis of the annual increase in oil, gas and condensate reserves in various stratigraphic complexes and sedimentary-rock basins in Kazakhstan.