Stainless Steel Screens

screens
TM
A Weatherford Company
THE WORLD’S BEST
D E S I G N E D WAT E R W E L L S
USE JOHNSON SCREENS
W H E N P E R F O R M A N C E I S I M P O R TA N T –
THERE IS NO EQUAL.
To get the best, most cost-effective water
well, specify a continuous slot Johnson well
screen. We are the largest manufacturer of
premium water well screens.
Why Is A Johnson Screen Better?
Better Well Development
Johnson screens have very high open area.
This allows better access to the entire
formation around the screen. Fines and
drilling fluid are removed quickly and
completely resulting in better well
development.
Lower Pumping Costs
The high open area of Johnson screens
allows water to enter the well freely resulting
in minimal drawdown and less energy
expended by the pump.
2
Less Maintenance
The continuous slot design of Johnson well
screens allows lower entrance velocity of the
water which reduces encrustation rates. The slot
design also resists plugging and prevents sand
from damaging pumps.
Successful Screens Follow Careful Design
1. We analyze your formation sand to correctly
size the screen.
2. We select a grade of steel with the right
level of corrosion resistance.
3. Noting the depth of your well, we choose
the wire and rod combination that produces
a screen with all the necessary strength
characteristics.
4. Screen design is determined by aquifer
characteristics and desired yield.
5. We supply all the fittings appropriate to your
method of installation.
WATER WELL SCREENS
TABLE OF CONTENTS
SMALL DIAMETER SCREENS
DRIVE POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
FREE-FLOWTM STAINLESS STEEL . . . . . . . . . . . .5
GALV. & LOW CARBON STEEL . . . . . . . . . . . . .6, 7
LARGE DIAMETER SCREENS
TYPE 304 STAINLESS STEEL, FREE-FLOWTM . . .8
TYPE 304 STAINLESS STEEL, HI-FLOW (HI-Q) . .9
HICAP-GTM (GALV LOW CARBON STEEL) . . . . .10
HICAPTM (LOW CARBON STEEL) . . . . . . . . . . . . .11
THE INDUSTRY'S BEST PRODUCT LINE
GETS THE INDUSTRY'S BEST SUPPORT
SPECIAL SCREENS & ACCESSORIES
PRE-PACKED SCREENS . . . . . . . . . . . . . . . .12, 13
PIPE-BASED SCREENS . . . . . . . . . . . . . . . . . . . .14
We do more than make the world's best well
screens. We also supply you with technical
support that's like having your own in-house
engineering team with no overhead. Whether
you need sand analysis of your formation
materials, screen size recommendation, screen
installation suggestions or want to discuss any
aspect of well construction, contact us.
Our support staff includes design engineers,
welders, technical support personnel and sales
engineers who have been on the shop floor,
taught in classrooms and technical seminars,
set and pulled screens and run pumping tests.
We speak your language, understand your
problems, and are here to help.
CASINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
FITTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
DIELECTRIC COUPLING / AGRI-SCREENTM . . . .17
PRO FORMA SPECIFICATIONS
WELL SCREEN / MUNI-PAKSTM . . . . . . . . . . . . . .18
PUBLICATIONS
GROUNDWATER AND WELLS . . . . . . . . . . . . . .19
3
WATER WELL DRIVE POINTS
W60 Models - 304 and 316 Stainless Steel
OD
in
Clear
ID
in
1-1/4
1.7
1.0
0.060
2.0
1000
5,500
5,898
2P
2.4
1.7
0.060
2.7
1000
7,200
8,793
2P Sand Point
2.6
2.0
0.060
2.5
1000
4,900
4,239
4P-All Drive
4.7
4.0
0.060
5.6
600
16,300
21,486
4P-Double Drive
4.8
4.0
0.089
7.0
1000
16,300
21,486
Size
Wire Screen Max
Width Wt/Ft* Depth
in
lbs
ft
Tensile Column
Strength Strength
lbs (1) lbs (2)
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (3)
Screen Slot Size in thousandths of an inch
6
10
12
15
20
30
5.8
6,155
8.2
2,349
8.9
1,825
16.0
318
11.3
835
9.1
10.6
5,804 5,642
12.8
15.0
2,215 2,153
14
16.3
1,721 1,673
25.2
29.4
300
291
18.1 21.3
801
785
12.7
5,417
17.9
2,067
19.6
1,606
35.3
280
25.9
763
15.9
5,078
22.4
1,938
24.5
1,506
44.1
262
32.9
728
21.2
4,514
29.9
1,722
32.6
1,338
58.8
233
45.2
667
W90 Models - 304 and 316 Stainless Steel
OD
in
Clear
ID
in
1.7
1.0
0.089
1.7
600
6,600
7,000
2P
2.4
1.7
0.089
2.3
600
7,200
8,700
2P-Sand Point
2.5
2.0
0.089
2.0
600
4,900
4,200
4P-All Drive
4.6
4.0
0.089
4.8
250
16,300
21,400
Size
1-1/4P
Wire Screen Max
Width Wt/Ft* Depth
in
lbs
ft
*Weight based on 10-slot construction (no fittings)
(1) Tensile & Column Strength includes 30% safety factor.
(2) Column strength is based on 5-ft screen barrel length.
(3) Calculated collapse values - No safety factor
Transmitting Capacity in gpm/ft-screen = Open Area x 0.31
(assumes entrance velocity = 0.1 ft/sec.)
P - Pipe Size
T - Telescope Size
4
Tensile Column
Strength Strength
fbs (1) fbs (2)
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (3)
Screen Slot Size in thousandths of an inch
6
10
12
15
20
30
4.0
6.4
7.6
9.2
11.7
16.1
2,496 2,396 2,348 2,280 2,176 1,993
5.7
9.1
10.7 12.9
16.5 22.6
857
822
806
782
747
684
5.9
9.5
11.1 13.5
17.2 23.7
743
713
699
679
648
593
11.0
17.6
20.7 25.2
32.0 44.0
118
113
111
108
103
94
SMALL DIAMETER FREE-FLOW ™ WELL SCREENS
Waterwell and Environmental - W60 Construction - 304 and 316 Stainless Steel
OD
in
Clear
ID
in
Wire
Width
in
1-1/4
1.7
1.1
0.060
1.8
1000
4200
2100
3100
2P **
2.5
1.9
0.060
1.9
1000
2000
1000
1500
2P/3T
2.6
2.0
0.060
2.2
1000
3400
1700
2600
2.5P
3.0
2.4
0.060
2.6
1000
4200
2100
3100
3P **
3.6
2.9
0.060
2.9
1000
4200
2100
3100
3P/4T
3.7
3.1
0.060
3.0
1000
4200
2100
3100
4P **
4.6
4.0
0.060
3.7
600
4800
2400
3700
4P/5T
4.7
4.1
0.060
3.8
600
4800
2400
3700
5P/6T
5.6
5.0
0.060
4.5
400
5600
2800
4200
Size
Screen Max
Wt/Ft* Depth
lbs
ft
Tensile Recom. Column
Strength Hang Wt. Strength
lbs (1)
lbs (2)
lbs (3)
7
6.9
5,901
9.7
2,094
10.1
1,883
11.9
1,164
14.0
713
14.5
635
17.9
340
18.6
307
22.1
182
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (4)
Screen Slot Size in thousandths of an inch
10
12
20
30
40
50
9.4
10.9
16.4
21.9
26.2
29.8
5,648 5,491 4,942 4,393
3,954 3,594
13.3
15.5
23.3
31.0
37.2
42.3
2,004 1,948 1,754 1,559
1,403 1,275
13.8
16.1
24.1
32.2
38.6
43.9
1,802 1,752 1,577 1,402
1,262 1,147
16.2
18.9
28.4
37.8
45.4
51.6
1,114 1,083
975
867
780
709
19.1
22.3
33.5
44.6
53.5
60.8
682
663
597
531
478
434
19.9
23.2
34.8
46.4
55.6
63.2
608
591
532
473
426
387
24.5
28.6
42.9
57.2
68.6
78.0
326
317
285
253
228
207
25.4
29.6
44.4
59.2
71.0
80.7
294
286
257
229
206
187
30.2
35.2
52.9
70.5
84.6
96.1
174
170
153
136
122
111
Waterwell and Environmental - W90 Construction - 304 and 316 Stainless Steel
Size
OD
in
Clear
ID
in
Wire
Width
in
Screen Max
Wt/Ft* Depth
lbs
ft
Tensile Recom. Column
Strength Hang Wt. Strength
lbs (1)
lbs(2)
lbs (3)
1-1/4
1.7
1.1
0.089
1.5
600
4200
2100
3100
2P **
2.4
1.9
0.089
1.5
600
2000
1000
1500
2P/3T
2.5
2.0
0.089
1.7
600
3400
1700
2600
2.5P
3.0
2.4
0.089
2.1
600
4200
2100
3100
3P **
3.5
2.9
0.089
2.3
600
4200
2100
3100
3P/4T
3.7
3.1
0.089
2.4
600
4200
2100
3100
4P **
4.5
4.0
0.089
2.9
250
4800
2400
3700
4P/5T
4.7
4.1
0.089
3.0
250
4800
2400
3700
5P/6T
5.6
5.0
0.089
3.5
100
5600
2800
4200
*Weight based on 10-slot construction (no fittings)
(1) Tensile and Column Strength includes 30% safety factor.
(2) Hang weight is 50% of calculated tensile strength.
(3) Column strength is based on 5-ft screen barrel length.
(4) Calculated collapse values - No safety factor.
Transmitting Capacity in gpm/ft-screen = Open Area x 0.31
(assumes entrance velocity = 0.1 ft/sec.)
**Alternate Construction for Environmental Applications
P - Pipe Size
T - Telescope
7
4.6
2,343
6.6
817
6.9
724
8.1
443
9.6
269
10.0
239
12.4
127
12.8
114
15.3
67
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (4)
Screen Slot Size in thousandths of an inch
10
12
20
30
40
6.4
7.6
11.7
16.1
19.8
2,272 2,227 2,063 1,890
1,743
9.2
10.8
16.7
22.9
28.2
792
776
719
659
608
9.6
11.2
17.4
23.9
29.3
702
688
637
584
538
11.3
13.3
20.5
28.1
34.6
429
421
390
357
330
13.3
15.7
24.2
33.3
40.9
261
255
237
217
200
13.9
16.3
25.2
34.6
42.6
232
227
211
193
178
17.1
20.2
31.1
42.8
52.6
123
121
112
102
94
17.7
20.9
32.2
44.3
54.5
111
109
101
92
85
21.2
24.9
38.5
52.8
65.0
65
64
59
54
50
50
22.9
1,618
32.7
564
34.0
500
40.1
306
47.5
186
49.4
165
61.0
88
63.2
79
75.4
47
Telescope size screens (left)
install through the casing and
usually have a Figure K packer
as upper fitting. Pipe size screens
(right) usually have weld rings at
each end and attach directly to
the casing.
5
SMALL DIAMETER HICAP-G ™ WELL SCREENS (GLCS)
Waterwell and Environmental - Heavy - 1000 Foot Construction - Galvanized Low Carbon Steel
Clear Wire Screen Max
ID Width Wt/Ft* Depth
in
in
lbs
ft
Tensile Recom.
Strength Hang Wt.
lbs
lbs(2)
Column
Strength
lbs (1)
Size
OD
in
1-1/4P
1.8
1.0
0.089
2.4
1500
4800
2400
5500
2P/3T
2.7
2.0
0.089
3.0
1500
4000
2000
5100
3P/4T
3.8
3.0
0.089
4.2
1500
4800
2400
6400
4P/5T
4.8
4.0
0.089
5.2
1000
5800
2900
7700
5P/6T
5.7
4.8
0.089
6.2
1000
6600
3300
8900
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (3)
Screen Slot Size in thousandths of an inch
7
12
20
30
40
50
4.9
8.1
12.5
17.1
21.1
24.5
15,298 14,540 13,473 12,341 11,384 10,565
7.3
11.8
18.3
25.1
30.9
35.8
4,746 4,511 4,180 3,829 3,532 3,278
10.3 16.8
25.9 35.6
43.8
50.9
1,679 1,596 1,478 1,354 1,249 1,159
13.1 21.4
33.0 45.3
55.8
64.7
821
781
723
663
611
567
15.6
25.4
39.2
53.9
66.3
76.9
517
491
455
417
384
357
*Weight based on 10-slot construction (no fittings)
(1) Tensile & Column Strength includes 30% safety factor.
(2) Hang Weight is 50% of Calculated Tensile Strength
(3) Calculated collapse values - No safety factor
Transmitting Capacity in gpm/ft-screen = Open Area x 0.31
(assumes entrance velocity = 0.1 ft/sec.)
P - Pipe Size
T - Telescope Size
Finishing a Screen
6
SMALL DIAMETER HICAP™ WELL SCREENS (LOW CARBON STEEL)
Waterwell and Environmental - Standard - Low Carbon Steel
Clear Wire Screen Max
ID Width Wt/Ft* Depth
in
in
lbs
ft
Tensile Recom.
Strength Hang Wt.
lbs
lbs(2)
Column
Strength
lbs (1)
Size
OD
in
1-1/4P
1.7
1.0
0.060
1.5
1000
3000
1500
2900
2P/3T
2.6
2.0
0.060
2.2
1000
5000
2500
5100
3P/4T
3.7
3.0
0.060
3.3
1000
6000
3000
6400
4P/5T
4.7
4.0
0.060
3.8
600
7000
3500
7700
5P/6T
5.6
4.9
0.060
4.5
250
8000
4000
8900
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (3)
Screen Slot Size in thousandths of an inch
7
12
20
30
40
50
6.5
10.4
15.7
20.9
25.1
28.5
7,146 6,650 5,985 5,320 4,788 4,353
10.2 16.3
24.5
32.7
39.2
44.6
1,902 1,770 1,593 1,416 1,274 1,158
14.7 23.5
35.2 47.0
56.4
64.1
645
601
641
481
432
393
18.7 29.8
44.7 59.6
71.5
81.2
319
297
267
237
213
194
22.2
35.4
53.1
70.7
84.9
96.5
191
177
160
142
128
116
Waterwell and Environmental - Heavy - 1000 Foot Construction - Low Carbon Steel
Clear Wire Screen Max
ID Width Wt/Ft* Depth
in
in
lbs
ft
Tensile Recom.
Strength Hang Wt.
lbs
lbs(2)
Column
Strength
lbs (1)
Size
OD
in
1-1/4P
1.7
1.0
0.089
2.4
1500
4800
2400
5500
2P/3T
2.7
2.0
0.089
3.0
1500
4800
2000
5100
3P/4T
3.8
3.0
0.089
4.2
1500
4800
2400
6400
4P/5T
4.8
4.0
0.089
5.2
1000
5800
2900
7700
5P/6T
5.7
4.8
0.089
6.2
1000
6600
3300
8900
Open Area - sq.in. / ft-screen
Collapse Strength - PSI (3)
Screen Slot Size in thousandths of an inch
7
12
20
30
40
50
4.9
8.1
12.5
17.1
21.1
24.5
15,298 14,540 13,473 12,341 11,384 10,565
7.3
11.8
18.3
25.1
30.9
35.8
4,746 4,511 4,180 3,829 3,532 3,278
10.3 16.8
25.9 35.6
43.8
50.9
1,679 1,596 1,478 1,354 1,249 1,159
13.1 21.4
33.0 45.3
55.8
64.7
821
781
723
663
611
567
15.6
25.4
39.2
53.9
66.3
76.9
517
491
455
417
384
357
*Weight based on 10-slot construction (no fittings)
(1) Column strength is based on 5-ft screen barrel length.
(2) Hang Weight is 50% of Calculated Tensile Strength.
(3) Calculated collapse values - No safety factor
Transmitting Capacity in gpm/ft-screen = Open Area x 0.31
(assumes entrance velocity = 0.1 ft/sec.)
P - Pipe Size
T - Telescope Size
7
F R E E - F L O W ™ 3 0 4 S TA I N L E S S S T E E L S C R E E N
Large Diameter FREE FLOWTM
Size
6" P
8" T
8" P
10" T
10" P
12" T
12" P
14" T
14" P / 16"T
16" P / 18"T
18" P / 20" T
20" P
24" T
24" P / 26"T
26" P
30" T
30" P/ 36"T
36" P
Max
Depth
Ft
OD
in
100
250
600
1000
250
1000
250
1000
250
1000
600
1000
600
1000
250
600
1000
250
600
1000
250
600
1000
100
250
600
1000
100
250
600
1000
100
250
600
1000
100
250
600
1000
100
250
1000
100
250
1000
100
250
1000
100
250
1000
100
600
6.7
6.7
6.7
6.8
7.6
7.6
8.7
8.8
9.5
9.6
10.8
10.8
11.3
11.4
12.8
12.8
12.9
12.5
12.6
12.6
14.0
14.1
14.1
16.1
16.1
16.2
16.3
17.8
17.9
18.1
18.1
19.9
20.0
20.1
20.1
21.9
21.9
22.1
22.2
24.1
24.3
24.4
25.7
25.8
26.0
27.1
27.2
27.3
29.6
29.7
29.9
35.7
35.9
ID
in
6.0
6.0
5.9
5.9
6.8
6.8
7.9
7.9
8.7
8.7
9.9
9.9
10.4
10.4
11.9
11.9
11.9
11.6
11.6
11.6
13.1
13.1
13.1
15.1
15.1
15.1
15.0
16.8
16.8
16.8
16.7
18.8
18.8
18.8
18.8
20.7
20.7
20.7
20.7
22.8
22.8
22.8
24.4
24.4
24.4
25.7
25.7
25.7
28.3
28.3
28.3
34.3
34.3
Weight
lbs/ft
(1)
4.4
4.8
6.0
7.7
7.0
8.9
7.9
10.1
8.9
11.3
12.6
18.8
13.6
20.1
14.7
22.0
22.0
14.4
20.8
20.8
15.5
23.5
23.5
17.8
25.5
26.9
33.8
19.3
29.4
29.4
36.5
21.8
33.0
33.0
41.3
36.5
36.5
36.5
66.6
38.3
38.3
68.9
40.8
40.8
73.5
42.6
42.6
76.6
47.1
47.1
84.8
68.8
101.1
Recom. Collapse
Hang Wt
PSI
(2)
(1)
4300
4300
8800
8800
11000
11000
12100
12100
14300
14300
15400
15400
17600
17600
17600
17600
17600
14300
14300
14300
17000
17000
17000
19200
19200
19200
36000
19800
19800
19800
37000
23100
23100
23100
43300
26400
26400
26400
49400
22000
22000
41200
23600
23600
44300
23600
23600
44300
27500
27500
51500
31900
59800
82
185
184
683
129
480
85
319
65
244
171
479
147
413
103
290
290
110
310
310
78
222
222
52
147
147
147
38
109
109
106
27
78
78
77
59
59
59
146
45
45
110
37
37
91
32
32
78
24
24
60
15
34
Intake Area (3) - sq. in. / ft-screen
Screen slot size in thousandths of an inch
10
36
20
20
16
23
18
26
21
28
23
25
26
27
27
30
30
29
29
30
28
33
33
32
38
38
36
40
42
40
45
45
47
47
50
50
52
49
55
42
54
60
46
58
64
49
61
67
52
66
74
56
89
68
15
50
29
29
23
33
26
37
30
41
33
37
37
39
39
44
44
42
43
43
41
48
48
46
55
55
53
59
61
59
65
65
68
68
73
72
75
72
79
61
79
87
67
84
93
72
88
98
75
97
107
82
129
99
20
63
37
37
30
42
34
48
39
53
42
48
48
50
51
57
57
55
55
56
53
62
62
60
71
72
69
76
79
76
84
84
88
88
94
94
97
93
103
80
102
113
87
109
120
93
115
126
98
125
138
107
166
129
25
74
45
45
36
51
41
58
47
64
52
58
58
61
61
69
69
66
67
68
65
75
76
73
87
87
83
92
96
92
102
102
107
107
114
114
118
113
124
97
124
137
107
132
146
114
139
153
120
152
168
131
202
157
30
84
52
52
43
59
48
67
55
74
60
68
68
71
72
80
81
78
79
79
76
88
88
85
101
101
97
107
112
108
119
119
125
125
132
132
137
132
145
114
145
159
125
155
170
134
163
179
140
178
195
154
235
184
40
100
65
65
54
73
61
84
69
92
76
86
86
90
90
101
102
98
99
100
96
111
112
107
128
128
123
135
141
136
150
150
158
158
167
167
174
167
183
145
184
201
160
196
214
170
206
225
179
225
246
196
296
235
50
114
76
76
64
86
72
99
82
108
90
102
102
107
107
120
121
117
118
118
114
132
133
128
151
152
147
160
168
162
177
177
187
188
198
198
206
199
217
174
218
238
191
233
254
204
245
267
215
268
292
235
351
282
60
125
86
86
73
97
82
112
94
122
103
116
117
122
123
138
138
134
135
135
131
151
151
146
173
174
168
183
192
186
202
202
214
215
225
225
236
227
247
201
250
272
220
267
289
235
281
304
247
307
333
270
400
325
80
143
103
103
89
116
100
134
115
146
125
141
142
149
149
167
168
163
164
165
160
184
184
179
211
212
205
222
234
227
245
245
261
261
273
273
287
278
300
248
305
329
272
326
351
290
343
369
305
375
404
334
485
401
100
157
117
117
102
132
115
152
132
166
144
162
163
171
172
193
194
188
188
189
184
211
212
206
242
243
236
254
269
262
281
281
300
301
314
313
330
320
344
288
352
378
317
375
402
338
395
423
355
432
463
388
556
466
(1) Based on .030" Slot Size (Collapse values contain NO safety factor.)
(2) Recommended Hang Weight is 50% of the Calculated Tensile Strength
(3) Transmitting Capacity (GPM/ft) = Open area (sq.in/ft) x 0.31
Screens are available in up to 40-foot lengths of continuously wrapped screen with no mid-weld. 316 stainless steel technical information is available on request.
P- Pipe Size
T -Telescope Size
8
HI-FLOW ™ (HI-Q) – 304 STAINLESS STEEL SCREEN
Large Diameter HI-FLOWTM
Size
6" P
8" T
8" P
10" T
10" P
12" T
12" P
14" T
4" P / 16"T
16" P / 18"T
18" P / 20"T
20" P
24" T
24" P / 26"T
26" P
30" T
30" P / 36"T
36" P
Max
Depth
Ft
OD
in
ID
in
Weight
lbs/ft
(1)
Recom.
Hang Wt
lbs (2)
Collapse
PSI
(1)
100
250
1000
250
600
1000
250
1000
250
1000
250
1000
250
1000
250
1000
250
1000
250
1000
100
600
1000
600
1000
250
600
1000
250
600
1000
100
250
1000
100
250
1000
100
250
1000
100
250
1000
100
250
600
6.6
6.7
6.7
7.5
7.5
7.6
8.7
8.8
9.5
9.6
10.8
11.0
11.3
11.5
12.8
13.0
12.5
12.7
14.0
14.2
16.1
16.3
16.3
18.0
18.1
20.1
20.1
20.2
22.0
22.1
22.2
24.2
24.3
24.4
25.8
25.8
26.0
27.1
27.2
27.3
29.7
29.7
29.9
35.7
35.9
35.9
6.0
6.0
5.9
6.8
6.8
6.8
7.9
7.9
8.7
8.7
9.9
9.9
10.4
10.4
11.8
11.8
11.6
11.6
13.1
13.1
15.1
15.1
15.0
16.8
16.7
18.8
18.8
18.7
20.7
20.7
20.6
22.8
22.8
22.8
24.4
24.4
24.4
25.7
25.7
25.7
28.3
28.3
28.3
34.3
34.3
34.3
4.4
6.3
7.5
6.6
8.7
10.4
9.8
11.8
11.0
13.1
14.6
21.2
15.7
22.7
17.2
24.9
16.0
23.6
18.2
26.7
20.8
30.5
39.4
33.4
42.7
37.5
40.1
53.6
41.4
44.2
66.6
43.7
46.8
68.9
46.6
49.9
73.5
48.7
52.2
76.6
53.7
57.5
84.8
68.8
89.5
101.1
4300
4300
8800
11000
11000
11000
12100
12100
14300
14300
15400
15400
17600
17600
17600
17600
14300
14300
17000
17000
19200
19200
36000
19800
37100
23100
23100
43300
26400
26400
49400
22000
22000
41200
23600
23600
44300
23600
23600
44300
27500
27500
51500
31900
59800
59800
82
242
243
57
170
170
112
232
86
177
124
336
107
289
75
204
80
217
57
155
37
103
162
76
120
55
86
126
42
66
146
31
49
110
26
41
91
22
35
78
17
27
60
15
23
34
10
36
25
25
40
29
35
33
41
36
45
Intake Area (3) - sq.in. / ft-screen
Screen slot size in thousandths of an inch
15
20
25
30
40
50
60
80
50
63
74
83 100 114 125 143
36
46
55
64
78
91 102 119
36
46
55
63
78
91 101 119
57
71
83
94 113 129 141 162
41
52
62
72
88 102 114 134
50
63
75
85 104 119 132 152
47
60
71
82 101 117 131 154
58
72
86
98 119 136 151 175
51
65
78
90
111 128 144 169
63
79
94 107 130 149 165 191
100
156
133
133
177
150
168
172
193
189
211
50
29
53
31
59
35
58
34
65
38
75
44
40
48
45
54
50
54
59
55
42
65
60
46
69
64
49
73
67
52
80
74
56
89
97
68
71
43
75
45
84
50
82
49
92
55
106
63
59
70
65
78
73
79
86
79
61
94
87
67
100
93
72
106
98
75
116
107
82
129
140
99
238
179
250
189
282
212
275
208
308
232
354
266
254
295
281
329
314
331
360
344
288
396
378
317
422
402
338
444
423
355
486
463
388
556
588
466
89
55
94
58
106
65
104
64
116
71
133
82
76
90
84
101
94
101
110
103
80
121
113
87
129
120
93
136
126
98
149
138
107
166
180
129
106
67
111
70
125
79
123
77
137
86
158
99
92
109
102
122
114
123
134
124
97
147
137
107
157
146
114
165
153
120
180
168
131
202
218
157
121
77
127
81
143
91
140
90
157
100
180
115
107
127
119
142
132
143
155
145
114
171
159
125
182
170
134
192
179
140
210
195
154
235
253
184
146
97
154
102
174
115
170
112
190
126
218
144
135
159
150
178
167
179
195
183
145
214
201
160
228
214
170
240
225
179
263
246
196
296
318
235
168
115
177
120
199
136
195
133
218
148
250
170
160
188
177
210
198
211
230
217
174
253
238
191
270
254
204
284
267
215
310
292
235
351
375
282
186
130
196
137
221
154
216
151
242
169
278
193
183
214
202
239
225
240
262
247
201
288
272
220
307
289
235
323
304
247
353
333
270
400
427
325
215
157
226
165
255
186
250
182
279
204
321
233
222
258
245
288
273
290
316
300
248
347
329
272
370
351
290
389
369
305
426
404
334
485
515
401
(1) Based on .030" Slot Size. (Collapse values contain no safety factor)
(2) Recommended Hang Weight is 50% of the Calculated Tensile Strength.
(3) Transmitting Capacity (GPM/ ft) = Open area (sq.in/ft) x 0.31
316 stainless steel screen technical information is available on request.
Screens available in 40’ lengths of continuously wrapped screen with no mid-weld.
P - Pipe Size
T - Telescope Size
9
HICAP-G ™ LOW CARBON STEEL GALVANIZED SCREENS
Large Diameter HICAP-GTM
Size
6" P
8" T
8" P
10" T
10" P
12" T
12"P
14" T
14" P/16" T
16" P/18" T
18" P/20" T
20" P
24" T
24" P/26" T
26" P 30" T
30” T
30” P/36” T
Max
Depth
Ft
OD
in
250
1000
600
1000
250
600
1000
250
600
1000
100
600
1000
100
600
1000
100
600
1000
100
600
1000
250
600
1000
100
600
1000
100
600
1000
100
600
100
600
250
250
250
250
6.6
6.7
7.5
7.7
8.7
8.7
8.9
9.5
9.6
9.7
10.7
10.8
10.9
11.3
11.3
11.5
12.7
12.8
13.1
12.4
12.5
12.8
14.0
14.1
14.3
16.0
16.2
16.2
17.8
18.0
18.1
20.0
20.2
21.8
22.0
24.1
25.9
27.3
29.8
ID
in
6.0
5.9
6.7
6.7
7.8
7.8
7.8
8.6
8.6
8.6
9.8
9.8
9.8
10.4
10.4
10.3
11.8
11.8
11.8
11.6
11.6
11.5
13.0
13.0
12.9
15.0
15.0
14.8
16.7
16.7
16.7
18.7
18.7
20.7
20.7
22.8
24.4
25.7
28.2
Open Area (3) - sq.in. / ft-screen
Weight
lbs / ft
(1)
Recom.
Hang Wt
lbs / (2)
Collapse
PSI (1)
5.0
7.9
9.2
16.6
10.4
14.9
18.8
11.7
16.6
21.1
13.0
18.5
23.3
14.1
19.9
25.4
15.2
21.7
34.3
14.0
20.3
31.7
23.1
30.6
36.1
26.4
35.1
40.9
28.8
38.4
44.7
32.5
43.1
35.9
47.6
50.1
61.0
63.5
70.4
5000
9600
12000
24000
13200
13200
26400
15600
15600
31200
16800
16800
33600
19200
19200
38400
19200
19200
38400
15600
15600
31200
18600
18600
37200
21000
21000
42100
21600
21600
43300
25300
25300
28900
28900
24100
51700
51700
60100
125
256
179
519
118
359
341
90
275
266
63
193
186
54
166
166
38
116
321
40
124
342
88
253
246
58
168
169
43
124
121
31
89
23
68
51
41
35
27
10
Screen slot size in thousandths of an inch
15
20
25
30
40
50
60
80
100
28
25
29
20
33
22
23
36
24
25
41
27
28
43
29
29
48
32
25
47
32
25
35
27
28
40
31
31
45
35
35
51
39
55
43
47
50
53
58
39
36
41
28
47
32
33
52
35
36
58
40
40
61
41
42
69
47
37
67
46
36
51
40
40
59
46
46
65
51
51
73
57
80
62
68
73
77
84
139
133
150
122
173
137
140
189
151
153
213
170
172
225
178
181
253
202
173
247
197
169
221
186
189
252
214
214
281
238
239
315
267
344
291
319
342
361
394
(1) Based on .030" Slot Size (Collapse values contain NO safety factor.)
(2) Recommended Hang Weight is 50% of the Calculated Tensile Strength.
(3) Transmitting Capacity (GPM/ft) = Open area (sq.in/ft) x 0.31
Screens are available in up to 40-foot lengths of continuously wrapped screen with no mid-weld.
10
50
46
52
37
60
41
42
66
46
46
74
51
52
78
54
55
88
61
48
86
59
47
66
52
53
76
60
60
84
66
67
95
74
103
81
89
95
100
110
59
55
62
44
72
50
51
79
55
56
88
62
63
93
65
66
105
74
59
102
72
57
80
63
64
92
73
73
102
81
81
115
91
125
99
108
116
122
134
68
64
72
52
82
58
60
90
64
65
102
72
73
107
76
77
121
86
69
118
84
67
94
74
75
107
85
85
119
95
95
134
106
146
116
127
136
144
157
83
78
88
65
101
73
75
111
81
82
125
91
92
132
95
97
148
108
88
145
105
86
118
94
96
135
109
109
150
121
121
168
135
184
147
161
173
183
200
96
91
102
77
117
87
89
129
96
97
145
108
109
153
113
115
172
128
105
168
125
103
140
113
115
159
130
130
177
144
145
199
162
217
176
193
208
219
239
107
102
114
88
131
99
101
144
109
110
162
123
124
171
128
131
193
145
121
188
142
118
159
130
132
182
149
149
202
166
167
227
186
248
203
222
239
252
275
125
119
134
106
154
120
123
169
132
134
191
149
150
202
156
158
227
176
149
221
172
146
193
160
163
220
184
184
245
205
206
275
230
300
250
274
295
311
339
HICAP™ LOW CARBON STEEL SCREENS
Large Diameter HICAPTM
Size
6" P
8" T
8" P
10" T
10" P
12" T
12" P
14" T
14" P/ 16"T
16" P/ 18"T
18" P/ 20" T
20" P
24" T
24" P/ 26"T
26" P
30" T
30" P/ 36"T
36" P
Max
Depth
Ft
250
1000
250
1000
250
1000
250
1000
600
1000
600
1000
250
1000
250
600
1000
250
600
1000
100
600
1000
250
600
1000
100
250
600
1000
100
250
600
1000
100
250
600
1000
100
250
600
1000
100
250
600
1000
250
600
100
250
600
OD
in
ID
in
6.7
6.8
7.5
7.6
8.7
8.8
9.5
9.5
10.8
10.9
11.3
11.4
12.8
12.9
12.5
12.6
12.7
14.0
14.1
14.2
15.9
16.0
16.1
17.9
18.0
18.1
19.9
20.0
20.0
20.2
21.8
21.9
22.0
22.1
24.2
24.3
24.3
24.4
25.8
25.9
26.0
26.0
27.1
27.3
27.3
27.4
29.8
29.9
35.8
35.9
35.9
6.0
5.9
6.7
6.7
7.9
7.9
8.7
8.6
9.8
9.9
10.4
10.4
11.8
11.1
11.5
11.5
11.5
13.0
13.0
13.0
14.8
14.8
14.8
16.7
16.7
16.7
18.7
28.7
28.7
18.7
20.6
20.6
20.6
20.6
22.7
22.7
22.7
22.7
24.3
24.3
24.3
24.3
25.7
25.7
25.7
25.7
28.2
28.2
34.2
34.2
34.2
Weight
lbs /ft
(1)
6.3
12.2
8.7
14.3
9.8
16.2
11.0
18.1
20.1
24.3
21.8
26.1
23.5
28.4
21.6
26.4
29.4
24.1
30.1
33.3
28.0
34.1
37.8
37.4
41.5
46.1
34.6
42.1
46.7
51.8
38.5
46.7
51.7
57.3
51.6
57.1
63.2
74.5
55.1
61.0
67.1
79.6
57.3
63.5
70.3
83.0
70.4
91.7
83.9
92.8
109.4
Recom.
Hang Wt
lbs (2)
12900
14500
12900
18100
14100
20000
16700
23600
25400
25400
29000
29000
29000
29000
23600
23600
23600
28100
28100
28100
31700
31700
31700
32600
32600
32600
38100
38100
38100
38100
43500
43500
43500
43500
48100
48100
48100
48100
51700
51700
51700
51700
51700
51700
51700
51700
60100
60100
69800
69800
69800
Collapse
PSI (1)
246
637
179
451
118
295
90
229
160
361
138
313
96
219
103
234
350
73
167
251
50
114
172
82
123
186
25
59
89
135
19
44
67
102
33
50
77
140
27
41
63
115
23
35
54
99
27
76
16
24
24
10
25
12
29
13
33
15
36
16
18
19
19
19
22
22
21
21
25
24
24
27
27
27
31
30
35
30
34
34
39
34
37
37
43
37
41
47
40
56
44
50
43
59
46
53
45
63
58
68
69
60
82
Open Area (3) - sq.in. / ft-screen
Screen slot size in thousandths of an inch
15 20 25 30
40 50
60
80
36 46 55 64
78 91 102 119
17 22 27 32
41 49
57
71
41 52 62 71
88 102 114 134
19 25 30 36
46 55
64
79
47 60 71 82 101 117 131 154
22 29 35 41
53 64
74
91
52 66 79 90 111 129 144 169
24 31 38 45
57 69
80
99
27 35 43 51
65 78
90 112
27 35 43 51
65 78
91 113
28 37 45 53
68 82
95 117
28 37 45 53
68 82
95 118
32 42 51 60
77 93 107 133
32 42 51 60
77 93 107 133
31 41 50 59
75 91 105 130
31 41 50 59
75 91 105 130
36 47 57 67
85 102 117 144
35 46 56 66
84 101 117 145
35 46 56 66
84 101 117 146
40 52 64 75
95 114 131 162
40 52 64 75
96 115 133 165
40 52 64 75
96 115 133 165
45 59 72 85 108 129 149 183
45 58 71 84 107 129 149 185
51 66 81 95 121 144 166 205
44 58 70 83 106 128 148 184
50 65 80 94 120 144 167 207
50 65 79 93 120 144 166 206
57 74 90 105 134 160 185 228
49 64 79 92 118 143 165 205
55 71 87 103 131 158 183 227
55 71 87 102 131 157 182 226
62 81 99 116 147 176 203 250
54 70 86 101 130 156 180 224
60 79 96 113 145 174 201 250
69 89 109 128 163 195 224 276
59 77 95 111 143 172 199 247
81 105 128 149 189 224 257 313
64 84 103 121 154 186 214 266
73 95 116 136 173 208 239 295
63 83 101 119 152 183 212 264
86 112 136 159 201 239 273 334
67 88 108 127 162 195 225 280
77 100 122 143 183 218 251 310
67 87 106 125 160 193 223 277
91 118 143 167 212 252 288 351
84 110 134 157 200 239 275 339
99 129 156 183 231 275 314 384
101 132 161 188 240 287 330 407
87 114 140 164 210 253 293 364
119 155 188 219 277 330 378 460
100
133
83
150
92
172
107
189
115
131
132
137
138
156
156
152
152
168
170
170
188
193
193
213
216
238
215
242
242
264
240
265
264
291
263
292
321
289
361
312
342
309
384
327
360
324
405
394
442
473
426
530
(1) Based on .030" Slot Size (Collapse values contain no safety factor. )
(2) Recommended Hang Weight is 50% of the Calculated Tensile Strength
(3) Transmitting Capacity (GPM/ft) = Open area (sq.in/ft) x 0.31.
Screens are available in up to 40-foot lengths of continuously wrapped screen with no mid-weld.
P - Pipe
T - Telescope
11
E X A C T - PA K ™ A N D M U N I - PA K ™ S C R E E N S
Exact-Pak™
Muni-Pak™
(Patent Pending)
Large diameter water wells are frequently gravelpacked to provide downhole sand control. This
function can now be accomplished with Johnson
prepacked screens which have factory-installed
pack material in the annulus between an outer
screen and an inner screen. This design allows
closer contact between the inside of the screen
and the aquifer which can improve well
development, efficiency, placement time and
lower cost.
Exact-pak pipe-based screens and Muni-Pak
rod-based screens provide the following features:
Carbolite packed screens
help minimize biofilm
accumulation.
Uniformity
• Excellent sphericity and roundness of carbolite
increases hydraulic conductivity adjacent to the
well screen resulting in increased well efficiency
and reduced pumping costs.
Consistent Fill
• Industrial vibrating systems used to pack these
screens prevent internal filter media bridging
and ensure an even, consistent fill and
compaction
12
Special Lengths
• Muni-Pak screens are available in up to
40-foot lengths of continuously wrapped
screen with no mid-weld
High Strength
• Exact-Pak screens are constructed on single
or double-random-length perforated pipe for
added strength
Custom Applications
• Multiple wire-size and filter-media options are
available for customized applications
Lower Over All Cost
• Prepack design enables installation in smaller
diameter boreholes, resulting in cost savings
in drilling and cementing
Faster Completions
• The screens eliminate the need for gravelhandling or specialized equipment
E X A C T - PA K ™ A N D M U N I - PA K ™ S C R E E N S
E x a c t - P a k TM S c r e e n s
Size
in
Pipe
ID
in
Holes
per
Foot
Hole
Size
in
Open
Are of
Holes
in2/ft
2x4
3x5
4x6
5x7
6x8
8 x 10
10 x 12
12 x 15
14 x 16
16 x 18
18 x 20
2.0
3.0
4.0
5.0
6.0
7.9
10.0
12.0
13.2
15.2
17.2
84
108
168
180
204
240
288
336
360
384
432
0.375
0.375
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
9.28
11.93
32.97
35.33
40.04
47.10
56.52
65.94
70.65
75.36
84.79
Inner Screen Open Area Outer Screen Open Area
Approx Media
Approx
in2/ft
in2/ft
Screen Annular
Screen
Screen Slot size in
Screen Slot size in
OD Thickness thousandths of an inch
thousandths of an inch Weight
in
lbs/ft
in
10
25
50
10
25
50
4.5
0.776
12
25
41
21
45
72
21
5.7
0.781
16
35
57
27
56
89
31
6.7
0.774
21
44
71
25
55
91
36
7.7
0.774
23
49
79
28
60
98
42
8.7
0.774
30
63
102
34
73
121
58
10.8
0.774
38
81
131
41
90
148
84
12.8
0.774
47
101
162
43
95
160
111
15.0
0.774
55
118
191
40
90
155
135
16.0
0.774
60
130
210
43
97
168
155
18.0
0.774
69
147
238
41
94
166
178
20.0
0.774
86
183
296
50
115
202
200
Muni-PakTM Screens
Size*
in
Media
Approx Approx
Annular
Screen Screen
Thickness
ID
OD
in
in
in
Inner Screen Open Area (in2/ft)
Outer Screen Open Area (in2/ft)
Screen Slot Size in thousandths of an inch
Screen Slot Size in thousandths of an inch
10
20
30
40
50
10
20
30
40
50
Approx
Screen
Weight
lbs/ft
2x4
2.2
4.5
0.848
13
23
31
38
43
22
39
53
64
74
17
3x5
3.0
5.7
0.967
18
31
42
51
59
27
47
64
77
88
23
4x6
4.0
6.7
0.936
22
39
53
64
74
25
45
62
77
89
25
5x7
5.0
7.7
0.874
27
47
64
77
86
28
51
71
87
101
27
6x8
6.0
8.7
0.844
25
45
62
77
89
33
59
81
100
116
35
8 x 10
8.0
10.8
0.839
33
59
81
100
116
41
74
101
125
145
55
10 x 12
10.0
12.8
0.839
41
74
101
125
145
42
77
107
133
155
70
12 x 15
12.0
15.0
0.839
42
77
107
133
155
39
73
102
129
153
85
14 x 16
13.2
16.0
0.693
46
84
117
146
170
42
78
110
138
163
100
16 x 18
15.2
18.0
0.693
42
78
110
138
163
47
88
123
155
183
115
18 x 20
17.0
20.0
0.783
47
88
123
155
183
52
97
137
172
204
128
*Other sizes available on request.
Deep well construction Specifications available on request.
Muni-PakTM Screens
Size
in
Collapse
psi
Tensile
lbs
2x4
3x5
4x6
5x7
6x8
8 x 10
10 x 12
12 x 15
14 x 16
16 x 18
18 x 20
16,506
5,652
2,830
1,552
990
1,165
634
886
1,116
765
544
18,800
21,400
25,700
28,300
33,200
67,500
81,600
127,900
127,900
135,400
143,000
13
JOHNSON® PIPE-BASED SCREENS
Pipe-based well screen combines the
hydraulic efficiency of wire-wound screens
with the great strength of pipe. Because of the
strength of the pipe liner, the wrap wires can
be smaller, which produces greater open area.
The longitudinal support rods on the screen
jacket create channels which direct incoming
flow to the nearest pipe perforation. Screen
and pipe are welded to make a rugged, reliable
unit suitable for deep vertical wells as well as
horizontal remediation and supply wells.
Water Well - Pipe Based Stainless Steel
Size
in
1.5
2
2.5
3
4
5
6
7
7.625
8
9.625
10
12
14
16
18
14
Pipe
OD
in
1.900
2.375
2.875
3.500
4.500
5.563
6.625
7.000
7.625
8.625
9.625
10.750
12.750
14.000
16.000
18.000
Holes
Per
Foot
72
84
96
108
144
180
204
192
216
240
252
288
336
360
384
432
Hole
Size
in
0.375
0.375
0.375
0.375
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Hole
Open Area
per foot
in2
7.9
9.3
10.6
11.9
28.3
35.3
40.0
37.7
42.4
47.1
49.5
56.5
65.9
70.7
75.4
84.8
Screen
OD
in
2.4
2.9
3.4
4.0
5.0
6.1
7.1
7.5
8.1
9.1
10.1
11.3
13.3
14.5
16.5
18.5
Open Area - sq.in. / ft. - screen
Screen slot size in thousandths of an inch
10
7
9
11
14
18
22
26
28
30
34
38
43
51
56
63
71
20
14
17
21
25
32
40
48
50
55
62
69
77
92
101
115
129
40
23
29
35
42
54
67
80
84
92
104
116
130
154
169
193
217
60
30
37
45
55
70
87
103
109
119
135
150
168
199
218
250
281
100
39
48
59
71
92
113
135
143
155
176
196
219
260
285
326
367
CASINGS
304 Stainless Steel Casing
Nom
Diam
1"PS
Sch
OD
ID
Wt
per ft
Collapse
PSI
Nom
Diam
Sch
OD
ID
Wt
per ft
Collapse
PSI
5
10
1.315
1.185
1.097
0.88
1.42
2445
4795
1"PS
40
1.315
1.049
1.68
6127
1.049
1.70
6122
1.530
1.12
1362
1.442
1.82
3271
1-1/4"PS
40
1.660
1.380
2.27
4743
1.380
2.29
4736
1.770
1.29
1074
1-1/2"PS
40
1.900
1.610
2.72
4185
10
1.682
2.10
2704
40
1.610
2.74
4177
2"PS
40
2.375
2.067
3.65
3219
3"PS
40
3.500
3.068
7.58
2983
4"PS
40
4.500
4.026
10.79
2316
5"PS
40
5.563
5.047
14.62
1869
6"PS
40
6.625
6.065
18.97
1585
8"PS
40
8.625
7.981
28.55
1259
10"PS
40
10.750
10.020
40.48
1045
12"PS
Std
12.750
12.000
49.56
776
40
1-1/4"PS
5
1.660
10
40
1-1/2"PS
2"PS
3"PS
5
5
1.900
2.245
1.62
650
10
2.157
2.66
1824
40
2.067
3.69
3208
3.334
3.06
468
3.260
4.37
1050
3.068
7.65
2972
4.334
3.95
253
5
2.375
3.500
10
40
4"PS
5"PS
5
4.500
10
4.260
5.67
614
40
4.026
10.90
2303
5.345
6.41
295
2.295
7.84
486
5.047
14.75
1854
6.407
7.66
189
5
5.563
10
40
6"PS
8"PS
5
6.625
10
6.357
9.38
319
40
6.065
19.15
1570
8.329
13.53
210
7.981
28.82
1243
10.420
18.83
157
10.020
40.86
1030
12.390
24.39
126
12.000
50.03
762
10
8.625
40
10"PS
10
10.75
40
12"PS
Low Carbon Steel Casings
10
40
12.75
15
FITTINGS
Fig. K
Wirelock Fittings
Fig. TF Washdown
Centralizer
LXR Coupling
Shale Trap
Back Pressure Valves
LXR Nipples
Drive Point
Wash Plugs
Dielectric Coupling
Flush Thread
END FITTING OPTIONS
•Flush Threads
-Sch 40
-Sch 80
•NPT Thread
• We l d R i n g
•Plate Bottom
•Threaded Point
•Threaded Cap/Plug
•Locking Cap
•Beveled Ends
Most well screen installations involve a few standard fitting combination. Telescope size screens, for example, typically use a
Figure K packer on the screen top and a welded or threaded plate bottom. The plate usually has a welded bail attached to
use when lowering the screen. Pipe size screens attach directly to the casing and usually have plate bottoms. A variety of
other fittings such as centralizers, shale traps, washdown fittings and connecting fittings are stocked for quick delivery.
16
DIELECTRIC COUPLING
Use dielectric couplings whenever dissimilar
metals occur in water well systems or where an
electrically insulated connection is required.
AGRI-SCREEN™
Agri-Screen™ by Johnson. The quality of a "V"
shaped continuous slot Johnson screen is
available to provide an irrigation farmer or a
dewatering contractor the highest open area
possible together with a high-strength product, at
a price close to punched or louvered pipe
• Agri-Screen™ is manufactured of low-carbon
mild steel wire continuously wrapped around an
array of support rods
• Agri-Screen™ is available in 8", 10", 12" and 16"
pipe size diameter (8" I.D., 10" I.D., 12" I.D. &
16" O.D.)
• An optional O.D. collar is supplied on one end
of the screen to provide easy welding of the
product to other screens or pipe. It also serves
as a quick adapter to plastic casing
• Under normal circumstances, Agri-Screen™ can
be successfully installed in wells as deep as
800 ft. For deeper wells, Agri-Screen™ Plus is
available in 12" and 16" pipe size diameters (1)
• Available in truck load quantities only
(1) For wells deeper than 1500 ft. consult Johnson
17
F O R M AT F O R S P E C I F Y I N G J O H N S O N ® S C R E E N S
SCREENS
GENERAL: Well screens shall be of the continuous slot design
to provide maximum open area to reduce entrance velocity,
increase hydraulic efficiency and promote more effective
development. The well screens shall be constructed of veeshaped trapezoidal wire continuously wrapped around an array
of equally spaced support rods of the same material. Each
junction of wire/rod contact shall be resistance welded. The
screens and end fittings shall be made of _________(material).
The well screens shall be manufactured by Johnson Screens, a
Weatherford Company or approved equal.
COLLAPSE STRENGTH: Well screens to be_____ inches in
diameter, continuous slot wire-wrapped ________ (material),
designed to withstand a minimum collapse pressure of
________ (psi) for a _________ (inch) slot opening. The
surface wire shape shall cause the slot opening to widen
inwardly to minimize clogging. Surface wrap-wire height shall
be ________ (inch) to provide the desired collapse strength.
The wrap-wire face width shall be of minimum dimension to
provide ________ (%) open area at the anticipated ________
(inch) slot opening.
TENSILE STRENGTH: The minimum screen tensile strength
must exceed at least twice the total weight of the screen and
any standard wall blank casing suspended below the top screen
joint. The tensile strength shall be a minimum of ____________
pounds. (Tensile strength is total rod area times material yield
strength).
SCREEN CONFIGURATION: Screens shall be manufactured in
various lengths complete with ________ (material) weld rings
attached to each end. The weld rings shall be standard
available lengths as requested by the contractor and approved
by the engineer.
MUNI-PAKTM
GENERAL: Muni-Pak screens shall be of the continuous slot
design to provide maximum open area to reduce entrance
velocity, increase hydraulic efficiency and promote more
effective development. Both the inner and outer screens shall
be constructed of vee-shaped trapezoidal wire continuously
wrapped around an array of equally spaced support rods of the
same material. Each junction of wire/rod contact shall be
resistance welded. The screens and end fittings shall be made
of _________________ (material). The well screens shall be
manufactured by Johnson Screens, a Weatherford Company or
approved equal.
DIAMETER: The Muni-Pak shall be _______ inch Pipe Size
inner screen X _______ inch Pipe Size outer screen.
COLLAPSE: The screen shall be manufactured with a wrap
wire designed to yield a minimum collapse pressure of
___________ PSI at a design slot opening of ____________
inch. The wire shape shall cause the slot opening to widen
inwardly to minimize clogging.
OPEN AREA: The inner screen shall provide __________
sq.in. of inlet area per foot of screen at the design slot size. The
outer screen shall be of the same slot as the inner screen. The
slot size and filter pack are to be selected on the basis of a
Sieve analysis of the water bearing formation.
FILTER PACK: The annulus between screens shall be filled
with ceramic beads of uniform size and excellent sphericity.
The pack size shall be _________ filter size. The pack material
shall be installed and compacted by vibrating the unit in a
vertical position, while being filled. The top and bottom filter
seal plates shall be secured by welding.
TENSILE STRENGTH: The minimum screen tensile strength
must exceed 2 times the total Hang Weight of screen and blank
casing below the top screen joint. The tensile strength shall be
a minimum of ____________ pounds. (Tensile strength is total
rod area times material yield strength).
SCREEN CONFIGURATION: Screens shall be manufactured
in various lengths with a maximum of 40 ft. length overall
Screens shall be complete with _________ (material) end
fittings attached to each end. Standard weld rings are 6 inches.
Weld rings of longer lengths, or threaded fittings may be
requested. Screen barrels shall be provided in standard
____________ (overall or full) lengths which ____________
(include or exclude) the weld ring lengths. Lengths and end
fitting configuration to be requested, by the Contractor, and
approved by the Engineer.
SCREEN SUBMITTALS
Upon request, the screen manufacturer shall provide a submittal
and schematic drawing of the proposed screen design. The
documents shall include the OD, ID, construction materials, slot
size, approximate weight / ft; wrap wire width, wrap wire height,
collapse strength, percent open area, inlet open area / ft,
18
transmitting capacity / ft, number of support rods, diameter of
support rods; total cross sectional rod area, material yield
strength, tensile strength, column load and recommended hang
weight.
GROUNDWATER & WELLS
THIRD EDITION
Groundwater & Wells Third Edition is an update of the
classic 1986 Second Edition (by Driscoll). It focuses
on the practical aspects of design, maintenance and
drilling methods. Theoretical concepts are discussed
but the emphasis is on useful everyday application.
Topics include:
•
•
•
•
•
•
•
•
•
•
•
•
•
Occurrence and movement of groundwater
Groundwater exploration
Borehole geophysics
Practical water quality and geochemistry
Water well drilling techniques
Drilling fluids, under-balanced drilling
Water well design, development and
maintenance
New borehole geophysical techniques
Horizontal drilling
Bacteria’s influence on well maintenance
ASR wells (artificial storage and recharge)
Well design associated with groundwater
monitoring and remediation
Use of pre-pack screens in water well
completion.
Specific chapters are written by groundwater
professionals, and experienced Johnson Screens’
staff has integrated the content into a comprehensive
discussion. The Third Edition is an excellent teaching
tool, a valuable handbook for the water well professional
and an invaluable reference for those concerned with
groundwater protection and extraction.
Groundwater & Wells Third Edition contains:
• An information-packed DVD with:
- Interactive programs (well-design and
well maintenance)
- Water well logging program
(demonstration version)
- Computer accessible appendices
· Photographs
· Examples
· Charts
· Tables
· Discussions on a variety of
design topics
· Product literature
• Field Guide to Water Well Logging
• The Johnson Driller’s Journal
- All issues printed between 1929 and 1984 in
PDF format
Price: $140 plus tax and shipping
Inquire to:
Smyth Company
508 10th St. NE
Austin, MN 55912
(p) 507.433.8079
(p) 800.397.6110
(f) 507.433.1069
Order online at:
www.smythco.com/weatherford
A Weatherford Company
MAKING WATER SUPPLY AND TREATMENT MORE EFFICIENT
In addition to steel water well screens, Johnson
Screens is also the industry leader in other water supply
systems and treatment technologies.
Johnson PVC screens and casings are widely used in
water wells where conditions are less demanding and
economy is a consideration. Products range from simple
slotted pipe to engineered, wire-wound screens.
Nu-Well™ Chemical products are widely used in the
rehabilitation of water wells. These chemicals are
specially formulated for safe transport, storage and use.
Johnson's Revert® drilling fluid additive facilitates well
construction by increasing penetration rates, providing
more accurate samples and controlling difficult
downhole conditions.
Johnson surface water intake systems, with no
moving parts and low intake velocity, offer high capacity,
minimum environmental impact, long service life, lower
operating costs and minimal maintenance requirements.
Our modular designs adapt to all types of difficult site
conditions.
Flat panel screens are used for the protection of
aquatic life. Their high open area allows laminar
water flow preventing turbulence or high velocity
zones. Smooth wire surfaces avoid fish injury and
help Johnson screens meet all relevant federal
environmental standards.
Johnson® nozzles and header-lateral assemblies are
used for even flow distribution and collection in water
treatment systems. Their high open area and low
entrance velocity maximize the efficiency of the filter
media which increases productivity and lowers costs.
Johnson screens in Triton™ underdrains provide
direct retention of filter media, eliminating
intermediate support gravel. Filter bed upset is
prevented, space costs are reduced, backwash and
filtration efficiency are enhanced and installation is
made easier.
screens
TM
A Weatherford Company
United States
Johnson Screens, Inc.
P.O. Box 64118
St. Paul, MN 55164
800.VEE.WIRE phone
651.636.3900 phone
651.638.3171 fax
www.johnsonscreens.com
Bakersfield
Johnson Screens, Inc.
6022 State Road
Bakersfield, CA 93308
661.393.7233 phone
661.322.6416 fax
Houston
Johnson Screens, Inc.
11939 AldineWestfield
Houston, TX 77093
800.237.7593 phone
281.449.7024 fax
Australia
Johnson Filtration Systems Pty. Ltd.
88 Brickyard Road
Geebung, Queensland 4034
Australia
61.7.3867.5555 phone (national)
61.7.3867.5555 phone (int’l)
61.7.3265.2768 fax (sales)
France
Johnson Filtration Systems S.A.
Zone Industrielle
86530 Availles-en-Châtellerault
France
33 (0) 5 49 02 16 00 phone
33 (0) 5 49 02 16 55 fax
© 2004 Weatherford JS-BR5230-0204
Rights Reserved