Study and application of long-effect sand control associated technique for Dagang oilfield

With the increase of sand production and the higher difficulty of sand control in unconsolidated sandstone formation during middle and later periods of oil development, the poor rationality of parameters matching, lacking of formation stability and protection measurement, lower quality control in construction were all resulting in short-term validity of sand control and great lost of well productivity. Optimization and application of long-effect sand control integrated technique was developed to solve the key difficult problems in the process of production. Practice shows that the treatment of main technology optimizing, reservoir protection parameters matching, construction process real-time monitoring were all made the term of validity longer and capability of well with sand production more stable, which provides well theory and technology support for developing effectively of sand production reservoir in Dagang oilfield.