Study On Compound Plugging Removal Technology

In the long-term exploitation process of oil Wells,affected by water quality and operation measures,formation pollution is caused,and oil Wells are gradually blocked in the near-well area,resulting in insufficient liquid supply,decreased productivity and even no liquid output.In order to restore the production capacity of oil well,it is necessary to take measures to unblock the blocked formation.Under the influence of various external factors,the original reservoir conditions of ciyutuo oilfield are changed,the equilibrium state is changed and the reservoir is blocked.According to its potential damage,this is actually the result of the internal factors of the reservoir itself.Only when the reservoir is drilled,under the influence of various external factors,can the potential damage of the reservoir become a fact.Most of the oil wells in ciyutuo oilfield are less polluted.Especially in some high production wells,because the fluid enters the wellbore,the force is greatly reduced,leading to the accumulation of various impurities and particles in the pores around the wellbore.Strong negative pressure suction broken down technology is a new type of composite solution plugging measures,through the study,the plugging mechanism of yu tuo oilfield,and after a field experiment,that the technology has a single broken down measures incomparable advantages and effects,can be more economic and efficient solution to the problem of reservoir blockage,is a traditional fracturing and acidizing technology's further development.At the same time,this technology is simple in construction,low in cost,and has a broad application prospect in the old area of oilfield development,which can effectively achieve the ultimate goal of increasing the output of a single well.It adopts the mechanical principles of water hammer and negative pressure to carry out comprehensive fracturing and plug removal,which has the incomparable advantages and effects of single plug removal measures.After the success of this technology,it can solve the problem of reservoir plugging more economically and effectively.It is the further improvement and development of traditional fracturing and acidizing technology.