The formation of gas hydrate deposits at the bottom zone of injection wells during gas flooding

Authors: V.V. Zatsepin (Gazpromneft NTC LLC)
The question of reducing of the gas intake capacity of injection wells in the process of gas injection into the reservoir is considered. Data presented in this paper shows that this phenomenon can be explained only by the process of water clathrates generation in a porous medium of the well bottom zone of the formation. The features of an oil gas injection into the formation and its impact on the processes occurring in the well bottom zone are analyzed.
The question of reducing of the gas intake capacity of injection wells in the process of gas injection into the reservoir is considered. Data presented in this paper shows that this phenomenon can be explained only by the process of water clathrates generation in a porous medium of the well bottom zone of the formation. The features of an oil gas injection into the formation and its impact on the processes occurring in the well bottom zone are analyzed.


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