1. Multilayer screen
2. Material: 201 304 304L 316 316L Q235
3. Another name: Pipe base screen
4. Screen jacket: Johnson type screen
5. Base pipe: Perforated pipe
6. Connection type: STC, LTC,BTC threaded
7. Bubble bag, wooden pieces wrapped the Johnson screens
Pipe Base Screens pipes are used for oil and water exploiting.
Characteristics:
~ Pipe Base Screens consist of two screens or multilayer screen
~ Perforated pipe inside ,with perforations wrapped by the outside Johnson type screen
~ The screen jacket and base pipe are welded together with a length of coupling.
~ The base pipe can be made of seamless pipe or welded pipe, and more often, casing pipes.
~ ID of Johnson type screen equals OD of the perforated pipe.
|
Base Pipe Technical Specification (Standard API Spec 5 CT) |
|||||||
|
Size |
Outside Diameter |
Inside Diameter |
Grade |
Wall Thickness |
|||
|
in |
mm |
in |
mm |
in |
mm |
||
|
4-1/2 |
4.500 |
114.30 |
4.000 |
101.60 |
J55K55N80 |
0.250 |
6.35 |
|
3.920 |
99.57 |
J55K55N80 |
0.290 |
7.37 |
|||
|
5 |
5.000 |
127.00 |
4.408 |
111.96 |
J55K55N80 |
0.296 |
7.52 |
|
4.276 |
108.61 |
N80P110 |
0.362 |
9.29 |
|||
|
4.126 |
104.80 |
N80P110 |
0.437 |
11.10 |
|||
|
5-1/2 |
5.500 |
139.70 |
4.892 |
124.26 |
J55K55N80 |
0.304 |
7.72 |
|
4.778 |
121.36 |
N80 |
0.361 |
9.17 |
|||
|
4.670 |
118.62 |
N80 |
0.415 |
10.54 |
|||
|
7 |
7.000 |
177.80 |
6.366 |
161.70 |
J55K55N80 |
0.317 |
8.05 |
|
6.276 |
159.41 |
J55K55N80 |
0.362 |
9.19 |
|||
|
6.184 |
157.07 |
N80 |
0.408 |
10.36 |
|||
|
9-5/8 |
9.625 |
244.48 |
8.755 |
222.38 |
N80 |
0.435 |
11.05 |
|
8.681 |
222.50 |
N80 |
0.472 |
11.99 |
|||
|
10-3/4 |
10.750 |
273.05 |
10.050 |
255.27 |
H40J55K55N80 |
0.350 |
8.89 |
|
9.850 |
250.19 |
J55K55N80 |
0.450 |
11.43 |
|||
|
13-3/8 |
13.375 |
339.72 |
12.615 |
320.42 |
J55K55 |
0.380 |
9.65 |
|
12.415 |
315.34 |
J55K55N80 |
0.480 |
12.19 |
