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Research and Innovation
RUDN Scientists
Aleksandr Drozdov
Alexandr Drozdov
Doctor of Technical Sciences
Professor,

Simple solutions to complex problems.

+7 (495) 955-07-96 ext.: 3796
drozdov-an@rudn.ru
Contact a scientist
Scientific interests:
oil production water and gas impact geomechanical impact oil well operation submersible centrifugal pumps pumping and ejector systems
1979

Graduated from Moscow Institute of Petrochemical and Gas Industry named after Ivan Gubkin. Specialty - “Technology and complex mechanization of oil and gas field development”. Qualification - “Mining engineer”.

1983

Candidate thesis on “Development of methods for calculating the characteristics of a submersible centrifugal pump during exploitation of wells with low pressures at the pump entrance” for the degree of Candidate of Technical Sciences in the specialty “Development and exploitation of oil, gas and gas condensate field” was defended.

1998

Doctoral thesis on “Development, research and results of industrial use of submersible pumping and ejector systems for oil production” for the degree of Doctor of Technical Sciences in the specialty “Development and exploitation of oil and gas field” was defended.

1998

Winner of the Russian Government award in the field of science and technology for the work “Scientific and technical solutions for creating highly efficient energy-saving equipment for oil production and technologies for its application. Development of production of this equipment and its widespread industrial use in oil field with complex geological and commercial conditions”.

1999

Professor of the Department of Oil Field Development and Operation of National University of Oil and Gas "Gubkin University".

2004

Winner of the Gubkin prize for the work “Technology of well operation with hydrojet pump installations”.

2005

Lapel badge of the Ministry of Education and Science of the Russian Federation “For the development of research work of students” was awarded.

2017 - present

Professor of the Department of Mineral Development and Oil & Gas Engineering of RUDN University.

2018 - 2019

Director of the Department of Mineral Development and Oil & Gas Engineering of RUDN University. 

Teaching

Teaches RUDN students of bachelor’s and master’s studies of the direction “Oil and Gas Business” the following courses:

  • “Technology of oil and gas wells exploitation”;
  • “Development of oil fields in complicated conditions”;
  • “Development of oil and gas fields”;
  • “Technological processes of pipeline transport”.

Science

Scientific interests

  • Development and operation of oil fields
  • Application and technology of gas impact on the formation
  • Oil production technology and techniques
  • Enhanced oil recovery
"Simultaneous water and gas" (SWAG) injection is the effective method of enhanced oil recovery. However, until recently the effect of SWAG in the development of heavy oil fields has been studied insufficiently. In the present study laboratory researches have confirmed that SWAG injection when 25% gas content in the mixture significantly increases the displacement efficiency of heavy oil with the viscosity 217 mPa*s of Russkoye deposit, compared with water flooding. It has allowed extending the effective application of SWAG as a non-thermal method of enhanced oil recovery more than twice. According to the results of laboratory experiments to pre-extracted and not extracted core material, it was found that the degree of hydrophobic pore surface, which depends on the adsorption of polar components of oil, significantly affect the oil displacement efficiency when SWAG implementing. It was established that SWAG at the optimum gas content is effective for both hydrophilic and hydrophobic environments. The values of the heavy oil displacement efficiency for the hydrophilic core material of Russkoye field are about 1.8 times higher than for hydrophobic. The technology for SWAG injection from the use of mono-block multistage pump-ejecting systems has been developed. The technology can significantly improve the systems efficiency and the process of water-gas mixtures delivering into injection wells. The obtained results allow creating non-thermal energy-efficient methods for developing and improving oil recovery of heavy oil fields.
It is shown that the primary cause of inefficient operation of multiphase pump-ejector systems installed in oil fields for combined oil and gas gathering is that not only associated (casing-head) gas, but also oil recovered incidentally with water enters the receiving chambers of jet apparatuses. Even under the current operation conditions, the power consumption at BPS-0122 Sofinskaya booster-type pumping plant can be reduced more than twofold by utilizing the existing infrastructure to the maximum and optimizing the flow diagrams of the pump-ejector system where the functions of submersible centrifugal pumps and jet apparatuses are separated. In future development, the pump-ejector system could be provided with an additional ejector, which will allow effective integration of straight-flow and circulatory schemes.
Oil production with submersible jet pump's installations can successfully solve many problems of well's operation in the complicated conditions. However, this technology, unfortunately, is not widely used in Russia. The purpose of this work is the study and improving of the oil production technology with jet pumps, and developing of recommendations for its effective application. The analysis of the field experience of implementation has shown that, despite the achievements, the effectiveness of the known systems of oil jet pumps production is currently low. To solve this problem, various methods have been developed. A new technology has been suggested to use surface jet pumps for pumping out gas from the annulus and directing it with water into the injection wells. This technology is designed to increase oil production by reducing the annulus pressure and enhance oil recovery by SWAG injection.