Analysis of reducing pressure and increasing injection in high pressure water injection block of low permeability reservoir

The plugging phenomenon near the well zone of oil injection will seriously affect water development field, and then exploitation resources. low permeability reservoir is affected by various factors. Due to large difference between layers serious interference layers, physical property layer relatively poor, pressure shows a trend increasing year year, which has great impact on As oilfield benefit not ideal, it necessary take reasonable measures reduce ensure effect improve recovery reservoir. At present, technology been mature, can rate. application in several Wells verified correctness this conclusion.