旁通筛管是一种带有送液管和砾石充填管的新型防砂筛管。该筛管适用于长水平段裸眼水平井和高倾斜井的砾石充填，在有井筒塌陷、粘土膨胀和砂堵等情况时，其送液管和砾石充填管能保证全井段供液充填，有效地保证充填质量。 解决了较长水平井充填段在砾石充填过程中易发生早期砂桥现象，以及地层 塌陷、局部井眼不规则等情况造成的局部堵塞，使得砾石充填不完全的问题。

主要特性 

◎ 具备常规CMS金属网布筛管的特点； 

◎ 合理的送液管配置，保证了充填效率； 

◎ 合理的管路流道系统，增加了携砂液流动的可靠性； 

◎ 接头连接方便。

产品应用 

◎ 适用于疏松砂岩易坍塌油层充填防砂作业； 

◎ 适用于长水平段充填防砂作业。

BYPASS SCREEN

Bypass screen is a new type of sand control screen with conveying pipe and gravel packing pipe. The screen pipe is suitable for gravel packing of open hole horizontal wells and high inclined  wells in long horizontal section. In case of wellbore collapse, clay expansion and sand plugging,  its liquid delivery pipe and gravel packing pipe can ensure the liquid supply and packing of the  whole well section and effectively ensure the packing quality. It can solve the problem of gravel packing in the section of long horizontal wells, which is prone to early sand bridge, formation  collapse and blockage caused by local irregular wellbore, resulting in incomplete packing.

FEATURES

◎ It has the characteristics of conventional CMS metal mesh screen tube;

◎ Reasonable liquid delivery pipe configuration to ensure packing efficiency; 

◎ Reasonable pipeline flow channel system increases the reliability of sand-carrying liquid flow; 

◎ The connector is easy to connect.

APPLICATIONS

◎ Suitable for packing and sand control operations of loose sandstone and easily collapsed oil layers; 

◎ Suitable for packing and sand control operations in long horizontal sections.