Published November 2020, Pg. 30-36

Section: Oil and gas field development and exploitation

UOT: 622.276.4

DOI: 10.37474/0365-8554/2020-11-30-36

Development of rational method of water injection for production of light hydrocarbon fluid deposited in reservoir in the last exploitation phase

N.N. Hamidov Cand. in Tech. Sc. - “Oil-Gas Scientific Research Project” Institute

The complications in production of liquid hydrocarbons became immovable due to the retrograde phenomenon or degassing process in the last stage phase of exploitation of gascondensate, gascondensate-oil or light oil fields, operated in depletion mode have been researched and the impact of advanced method of water injection considered the most efficient for heterogeneous formation studied as well.

For the efficiency increase of water injection process, a new polymer-disperse system injected into the reservoir in small dozes as a bank, therefore selectively closing the zones with high permeability and increasing the cover zone of injected reservoirs is proposed. Based on the polyacrylamide and taken bentonite clay samples from Dash Salahly field of Azerbaijan including the nanoparticles, a new composition of polymer-disperse system has been developed, as well as the efficiency of the system in laboratory investigations studied. To control the effectiveness of the new composition, a physical reservoir model based on similar conditions has been developed and the experiments carried out through a special procedure.

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