CMS金属网布筛管是一种卷裹式网布筛管，其独特的过滤层结构能有效 阻挡地层砂并保持筛管自身的过流能力，适用于各种有防砂需求的油气井。

主要特性

◎ 多层316L不锈钢金属丝编织网过滤结构（可根据客户需求定制）， 防砂可靠性高，抗破坏能力强；

◎ 在过滤网间设置有支撑泄流网，有效改善流体的流动特性；

◎ 渗透率高，孔隙度高，有效过流面积大，挡砂精度高；

◎ 耐酸碱腐蚀、耐高温、耐冲蚀；

◎ 结构紧凑，强度高，易于在长距离水平段中下入； 

◎ 使用简单、操作方便，有利于提高施工成功率、降低施工费用；

◎ 抗变形能力强，直径方向变形40%后，仍保持完好的防砂性能；

◎ 可提供60~300μm精度范围的产品。

产品应用 

◎ 常规套管完井，尤其适用于裸眼完井，也可用于砾石充填和压裂充 填防砂作业；

◎ 高产油气井，水源井和注水井；  

◎ 高温高压井和腐蚀性油气井；

◎ 热采完井和大修再完井。

CMS is one type of shrouded metal mesh screen. It is a patent product of COSL. The unique  structure jacket can hold sand and maintain good flow-throng capability. CMS can be employed  in most reservoirs which needed sand control.

◎ Two layers 316L stainless steel filter media, high reliability and good anti-damaging performance; 

◎ Drainage layer between the filter media layers improves the flow properties; 

◎ High permeability and porosity, large open area;

◎ Easy to run in the long horizontal wells; 

◎ Anti-acid and alkaline, anti-high temperature, long service life;

◎ Simple construction, easy for operation, benefits to lower the completion costs, and increase the  rate of success in installation; 

◎ Remaining sand control performance even the radial deformation up to 40%; 

◎ Aperture size of CMS screen usually ranges from 60μm to 500μm.

APPLICATIONS

◎ RReservoir with d10/d95 ≤ 10 & d40/d90 ≤ 5 & sub44μm ≤ 5%; 

◎ Stand-alone, open hole especially, gravel pack and frac-pack application also; 

◎ High production rate well with electric submerged pump; 

◎ High temperature high pressure well and corrosive well; 

◎ Overhaul completion and thermal stimulation wells.

Note: 1. On the basis of different accuracy, the inside and outside diameter of the sieve tube  changes slightly, and the accuracy is calculated at 120 μm. 2. Material, buckle, pipe specification, precision can be customized according to customer  requirements.