APPLICATION RESEARCH OF IOR WITH ACOUSTIC AND ELECTRIC COM POUND FIELD

The acoustic wave with low frequency or the infra-acoustic wave can go far away, can exert effect on reservoir in a large scale, but have adverse influence on both human and environment. On the con trary, the electric field can not only treat the reservoir in a large scale, but also can avoid the adverse effect. This paper studies the effect of acoustic and electric field on the oil recovery rate under lab conditions. presents the results as follows:oil recovery rate can be increased by 2%-10% by means of single acoustic or electric field; while more oil recovery rate can be achieved if acoustic and electric compound field is used. This paper also discuses the influence of AC electric field with different frequency and of DC electric field with different polarity, discuses the influence of electric flow choking effect and impressed electric field on the effluent seepage of the porous media.