Results of numerical experiments to establish the influence of drawdown degree on gas and condensate recovery factors
https://doi.org/10.31660/0445-0108-2022-4-57-76
Abstract
As the title implies the article presents the results of the analysis of static models of multiple correlation of the gas recovery factor from geological and technological factors. It is shown that one of the main technological factors that determine the value of the gas recovery factor is the differential pressure drawdown, established in the technological modes of well operation. We have analyzed the reasons for the deviation of the actual and design development indicators (a case study of the Northern Nishan gas condensate field). We considered variant calculations of the field development indicators with a constant well stock, but differing in the drawdown in the wells, and concluded that the maximum value of the gas recovery factor of 82.3 % is achieved with drawdown of 5 MPa. It is shown that as the differential pressure drawdown increases, the gas recovery factor decreases and with a drawdown of 17.5 MPa it is only 39 %, which is confirmed by the actual field development indicators.
About the Authors
A. Kh. Agzamov
Tashkent State Technical University named after I. Karimov
Uzbekistan
Uzbekistan
Avaz Kh. Agzamov, Doctor of En-gineering, Member of the Academy of Sciences "Turon", Member of the Russian Academy of Natural Sciences, Professor at the Department of Development and Op-eration of Oil and Gas Fields
Tashkent
G. М. Efendiyev
Azerbaijan National Academy of Sciences
Azerbaijan
Azerbaijan
Galib М. Efendiyev, Doctor of Engineering, Professor, Corresponding Member
Baku
G. Zh. Moldabayeva
Satbayev University
Kazakhstan
Kazakhstan
Gulnaz Zh. Moldabayeva, Doctor of Engineering, Member of the Kazakhstan National Academy of Natural Sciences, Professor at the Department of Petroleum Engineering
Almaty
S. A. Abbasova
Tashkent State Technical University named after I. Karimov
Uzbekistan
Uzbekistan
Saidaxon A. Abbasova, Doctor of Philosophy in Geology and Mineralogy, Acting Associate Professor at the Depart-ment of Development and Operation of Oil and Gas Fields
Tashkent
H. M. Muhammadiev
Karshi Engineering and Economic Institute
Uzbekistan
Uzbekistan
Hamidullo M. Muhammadiev, Doctoral Student
Karshi
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Review
For citations:
Agzamov A.Kh., Efendiyev G.М., Moldabayeva G.Zh., Abbasova S.A., Muhammadiev H.M. Results of numerical experiments to establish the influence of drawdown degree on gas and condensate recovery factors. Oil and Gas Studies. 2022;(4):57-76. (In Russ.) https://doi.org/10.31660/0445-0108-2022-4-57-76
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