PRE-PACKED SCREEN
The pre-packed sand control screen is directly run into the completion section after the gravel is filled indoors, relying on the packed gravel layer to achieve high-efficiency sand control. The screen is mainly composed of 4 layers of structure, including the base pipe, the inner protective jacket, the gravel layer, and the outer protective jacket.
◎ The ceramsite filling is completed in the workshop, which saves on-site filling operation time and cost, while ensuring the filling quality, and improving the effectiveness of sand control in highly deviated wells and horizontal wells;
◎ The pre-filled ceramsite can be customized as required ( conventional ceramsite, lightweight ceramsite, hydrophobic ceramsite, etc. ) ;
◎ The ceramsite in the pre-filling layer is unconsolidated and can move slightly under pressure to achieve self-cleaning.
APPLICATIONS
◎ Suitable for loose sandstone reservoir;
◎ Suitable for sand control operation of casing deformation wells;
◎ Suitable for well completion and sand control with short well section;
◎ High temperature and high pressure wells, thermal production wells, corrosive oil and gas wells and the well completed again after the workover.