slotted liner for oil gas wells

The minimum slot width that can be achieved is about 0.012 in. Slots that cut less than 0.020 in. in width involve high costs because of excessive machine downtime to replace broken saw blades that overheat, warp, and break.
The single-slot staggered, longitudinal pattern is generally preferred because the strength of the unslotted pipe is preserved. The staggered pattern also gives a more uniform distribution of slots over the surface area of the pipe. The single-slot staggered pattern is slotted with an even number of rows around the pipe with a typical 6-in. longitudinal spacing of slot rows.

Technical Specification Slotted liner 

API Std. Casing			ID mm	Length m	Slot Length mm	Slot No.No./m	Slot Widthmm	Slot Tolerance	Valid Filter Area cmˆ2/m	Max. Strength KN
Spec. mm	Thickness mm	Per Weight Kg/m
60.32	5	6.84	50.3	3	80	200	0.3	±50	48	512.54
73.02	5.5	9.15	62	3	80	240	0.3	±50	57.6	688.55
88.9	6.5	13.22	75.9	3	80	280	0.3	±50	67.2	995.1
101.6	6.5	15.22	88.6	3	80	300	0.3	±50	72	1151.2
114.3	7	18.47	100.3	10	80	320	0.3	±50	76.8	1400.4
127	7.52	22.13	112	10	80	340	0.3	±50	81.6	1673.8
139.7	7.72	25.11	124.3	10	80	360	0.3	±50	86.4	1900.2
	9.17	29.48	121.4	10	80	360	0.3	±50	86.4	2232.4
168.3	8.94	35.09	150.4	10	80	400	0.3	±50	96	2672.95
177.8	8.05	33.68	161.7	10	80	440	0.3	±50	105.6	2559.2
	9.19	38.19	159.4	10	80	440	0.3	±50	105.6	2940.7

If you are interested in our product, please contact us, and for more information.
 
Cynthia                                            
Skype:aldfilters                          
QQ:2537575135
Tel/Fax:86-373-2638828                          
Mobile:86-15637366455(wechat)
Email:sales03@xxldlq.com                
Zip:453000
Add:Industrial Zone,Beihuan Road,Muye District,Xinxiang City,Henan P.R.China

relate: http://www.leaderwellscreen.com/Slotted_liner/299.html