FISHING TOOLS - National Oilwell Varco

Junk Subs
Bowen ® Junk Subs
NOV Downhole Bowen ® Junk Subs, which are normally run just above the drill bit, have a cup
for catching objects too heavy to be completely circulated out of the hole. This is particularly
advantageous in junk milling operations. By running a Bowen Junk Sub above a scraper, operators
can get quicker, cleaner scraping jobs.
Construction
Bowen ® Junk Subs are constructed from high quality steel, completely stress-relieved after cup and
rib guides have been welded to the main body.
Rib guides prevent the cup from becoming crushed and help guide the tool through tight places
upon withdrawal from the hole. Junk Subs are available in standard, long and extra long types.
FISHING TOOLS
Standard Type
Junk Sub
Bowen ® Junk Subs
Model Size 4 1/4 4 5/8 5 1/8 6 6 1/2 7 1/2 8 5/8 9 5/8 11 1/2 14 3/4
to 5 5/8 to 4 7/8 to 5 7/8 to 6 3/8 to 7 1/2 to 8 1/2 to 9 5/8 to 11 5/8 to 13 to 17 1/2
Standard Top Connection
API Reg. Tool Joint Pin 2 3/8 2 7/8 3 1/2 3 1/2 3 1/2 4 1/2 4 1/2 6 5/8 6 5/8 7 5/8
O.D. of Body (Top Connection) 3 1/8 3 3/4 4 1/4 4 1/4 4 1/4 5 1/2 5 1/2 7 3/4 7 3/4 8 7/8
O.D. of Body (Under Cup) 2 2 5/8 3 1/8 3 1/4 3 1/4 4 1/2 4 1/2 5 3/4 5 3/4 7 5/8
O.D. of Cup 3 11/16 4 4 1/2 5 5 1/2 6 5/8 7 8 5/8 9 5/8 12 5/8
I.D. of Cup 3 5/16 3 5/8 4 1/4 4 9/16 4 7/8 5 15/16 6 9/32 7 15/16 8 17/32 11 5/8
Diameter of Bore 3/4 1 1/4 1 1/2 1 1/2 1 1/2 2 1/4 2 1/4 3 1/2 3 1/2 4
Complete Assembly Part No. 20340 15450 15455 15460 15465 15470 15475 15480 15485 55306
Standard Type Weight 55 63 80 83 97 160 168 255 285 628
Length of Cup 10 10 10 10 10 10 10 10 10 10
Total Length 32 1/2 29 1/2 31 33 1/2 33 1/2 36 1/4 36 3/4 37 1/2 37 39 1/4
Complete Assembly Part No. 20345 17060 17065 17070 17075 17080 17085 17090 17095 62533
Long Type Weight 65 87 105 120 136 235 246 342 420 827
Length of Cup 20 20 20 20 20 20 20 20 20 20
Total Length 47 49 1/2 48 48 48 50 1/4 50 1/4 51 51 1/2 50 1/4
Complete Assembly Part No. 20295 20300 20305 20310 20315 20320 20325 20330 20335 62536
Extra Long Type Weight 80 108 128 156 183 285 302 430 530 988
Length of Cup 30 30 30 30 30 30 30 30 30 30
Total Length 57 57 1/2 59 3/4 57 3/4 55 56 60 1/4 57 1/2 58 60
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