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>> products >> Fishing tools >> Small fallen objects fishing tools
 
product name: Drilling Junk Sub
Description:
There are two kinds of fishes in the course of drilling well. One is fallen from well head, for instance: tong keys, slip dogs, hand tools as well as screws, nuts etc. another is produced in the course of drilling well, for instance cones, pellets, cutter teeth and hard metal inserts etc. No matter what fishes happen, they have to be fished up to avoid influencing drilling well. There are two ways for fishing. One is drilling with fishing and another is specially fishing with fishing tools.
The Junk Subs produced by our corporation have enough strength to bear various loads in the course of drilling without being damaged while it can carry out two kinds of fishing as above. Junk Sub is connected to the top of bit at drilling and a number of small fishes such as tong keys, slip dogs as well as screws, nuts etc can be flushed in to the sleeve of junk sub by circulating mud. After t ripping out, a large number of small fishes can be caught and so this way is convenient and efficient, that is to say, can clean up the bottom of well without needing to fish specially.
In addition, Junk Sub can work together with the one of magnet, reverse circulating junk basket and junk catcher etc for special fishing.
Features:
Junk Sub is simple in structure but is good, safe and reliable in use. The structure of Junk Sub is mainly made up of body and sleeve. Body and Sleeve are connected by screw thread so as to take up the caught junk easily on the ground and sleeve can be easily changed after it is damaged so as to prolong the use life. Sleeve has small holes on its wall to let mud flow through them and so junks can easily drop into the sleeve figure.
   Specification
Specifications and parameters of the Junk Subs
 
Type
OD of sleeve
Top connection
Bottom connection
LB127
5″
331
330
LB168
6-5/8″
431
430
LB178
7″
410
430
LB190
7-1/2″
410
430
LB203
8″
520
430
LB216
8-1/2″
520
530
LB219
8-5/8″
631
630
LB229
9″
620
630
LB245
9-5/8″
620
630
LB311
12-1/4″
620
630
 
 
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