Low permeability reservoir plugging increasing injection profile

Pucheng Oilfield W42,W43,P98,and other block belong to the low permeability reservoir,in the long-term water development,water injection wells are near wellbore reservoir plugging,scaling,pollution and other damage,seriously affecting the oil field water injection effect.For the water pressure is high,can not finish the problem with water injection,water injection in the injection pressure drop or rise in water wells,have been implemented to promote expansion of low-permeability reservoir Injection Pressure by reduction,multi-deep acidification acid hydrogen technology,supporting the fine filtration technology,the overall implementation of the blood pressure,increasing injection have received good results.