Acidization method for oil well with pump

摘要: The invention relates to the technical field of oil well acidification, and in particular an acidization method for with a pump. comprises following steps step 1, when stratum is blocked or needs injecting first wax dissolution blockage relieving fluid into stratum; 2, acid liquor reacting 30-60 minutes; 3, second after reaction finished; 4, displacement stratum. Compared existing acidification process, relatively good effect low cost; furthermore, well-repair pump lifting operation before re-pumping task are not needed, can be performed on basis original production string under condition normal well; directly put production, problems long occupied time due well-repair, high cost incapability dissolving discharging pollutants wrapped crystals repair during pump-lifting process solved, secondary pollution effectively avoided.