№ 3,
2008
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Peculiarities of the influence of the vibration on the coefficient of oil recovery by water out of beds
Institute of Geology and Geophysics of Azerbaijan National Academy of Sciences, AZ1143, Baku, H.Javid av., 119
Summary
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In the paper there have been considered results of laboratory experiments on the influence of low-frequency elastic oscillations in the range of frequencies 6 to 12 Hz on peculiarities of oil recovery by water out of layers at different stages of their exploitation.
There has been determined the increase of COR during the vibration irrespect of the stage of the exploitation of the oil bed as compared with the usual recovery of oil by water. The highest effect of the vibration on the oil bed is observed at the earlier stages of the exploitation, and there occurs the decrease of the pumping volume of the operating agent and time of oil recovery as compared with the flooding.
There has been determined the dependence of COR on parameters of the vibration determined by the viscosity and density of the HC liquid. Reaction of oil layer as related to the beginning of the vibration starts with some delay.