For medium and high permeability oilfields, filling sand control technology is one of the main measures to prevent formation sand production and achieve stable production and increase production.As the largest oil-bea...For medium and high permeability oilfields, filling sand control technology is one of the main measures to prevent formation sand production and achieve stable production and increase production.As the largest oil-bearing block in Qudi oilfield, Qu9 fault block has serious sand production in Guan3 formation, and sand control is required to meet normal production.Through the continuous development and optimization of sand control technology, in recent years, the commonly used sand control technologies in Qudi oilfield include squeeze filling sand control, chemical sand control, cyclic filling and other processes. It is found that the squeeze filling process can better meet the needs of Qu9 Guan3 block.At the same time, Qu9 Guan3 block has problems such as high shale content, strong sensitivity and thick crude oil viscosity. It is necessary to optimize the squeeze filling sand control process, and put forward supporting technologies such as pre reservoir cleaning agent and variable particle size graded sand addition, so as to better transform the formation, improve seepage efficiency and enhance the productivity of single wells while doing a good job in reservoir protection.展开更多
文摘For medium and high permeability oilfields, filling sand control technology is one of the main measures to prevent formation sand production and achieve stable production and increase production.As the largest oil-bearing block in Qudi oilfield, Qu9 fault block has serious sand production in Guan3 formation, and sand control is required to meet normal production.Through the continuous development and optimization of sand control technology, in recent years, the commonly used sand control technologies in Qudi oilfield include squeeze filling sand control, chemical sand control, cyclic filling and other processes. It is found that the squeeze filling process can better meet the needs of Qu9 Guan3 block.At the same time, Qu9 Guan3 block has problems such as high shale content, strong sensitivity and thick crude oil viscosity. It is necessary to optimize the squeeze filling sand control process, and put forward supporting technologies such as pre reservoir cleaning agent and variable particle size graded sand addition, so as to better transform the formation, improve seepage efficiency and enhance the productivity of single wells while doing a good job in reservoir protection.
