EXPERIMENTAL STUDY AND APPLICATION OF VIBRATION ENHANCED OIL RECOVERY TECHNOLOGY IN HIGH-VISCOSITY OILFIELD

Oil production fluctuation of well will take place due to effect of earthquake. Being enlighened from the above-mentioned fact, we developed vibration enhanced oil recovery technology.This paper discusses the mechanism of increase production of this technology,point out that the mechanism depends on it may increase flow speed,improve distribution of oil,gas and water in formation,change surface wettability of rock,help removal of formation plugging and enhance permeability. According to analysis of field application result in two test areas,this paper summarizes the increase production and laws in different perturbation force,different vibration frequency and different vibtation period,which have a guide significance for application of vibration oil enhanced recovery technology.