In consideration of the sand-control problems at the mid and late stages of unconsolidated sandstone reservoir production, a new squeeze packing sand control string is developed.

• 针对油田开发中后期疏松砂岩油藏出砂加剧、防砂难度大以及许多油井套管难于承受高压施工的防砂难题,研制开发了无套压高压挤压充填防砂工艺管柱。