Overshot,crease fitting,cable swivel body,jar staff,jar tube,locking sleeve,lift dog,spring pin
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Overshot fishing tools
overshot is a kind of composite fishing tools used for fishing of catches in different sizes such as sucker rod, coupling, weight drill pipe and well logging instrument out of casing, overshot fishing tool is attached to a drill pipe or tubing and lowered over the outside of the well. The overshot will grab the rod that is stuck and sticking out of the well. overshot contains a friction device that will grip the rod or bar so it can be pulled free. We manufacture N overshot,H overshot and wireline overshot. Components include Eye bolt,Cable swivel collar,Thrust bearing,Castle nut,Crease fitting,Cable swivel body,Jar staff,Shut off value,Nut,Jar tube, Locking sleeve,Ezy lock overshot head,Compression spring,Lifting dog,Spring Pin,Set screw,Spring pin. overshot attached to the end of the winch cable is lowered inside the rod string and locks on to the backend head assembly, located on the top end of the core barrel. The winch is retracted, pulling the core tube to the surface. The core does not drop out of the inside of the core tube when lifted because either a split ring core lifter or basket retainer allow the core to move into, but not back out of the tube.

 N overshot components
1
eye bolt
2
cable swivel collar
3
thrust bearing
4
cable nut
5
crease fitting
6
cable swivel body
7
jar staff
8
shut off valve
9
nut
10
jar tube
11
locking sleeve
12
ezy lock overshot head
13
compression spring
14
lifting dog
15
spring pin
16
set screw
17
spring pin
NQ overshot
  H overshot

 H overshot components
1
eye bolt
2
cable swivel collar
3
thrust bearing
4
cable nut
5
crease fitting
6
cable swivel body
7
jar staff
8
shut off valve
9
nut
10
jar tube
11
locking sleeve
12
ezy lock overshot head
13
compression spring
14
lifting dog
15
spring pin
16
set screw
17
spring pin
HQ overshot
 Wireline overshot (Chinese standard)

 wireline overshot components
1
eye bolt
2
staff
3
cable swivel body
4
adaptor
5
plain pin
6
cable swivel body
7
locking sleeve
8
lifting dog body
wireline overshot
Overshots
N over shots,H over shots,Wireline Overshots
, (Eye bolt,Cable swivel collar,Thrust bearing,Castle nut,Crease fitting,Cable swivel body,Jar staff,Shut off value,Nut,Jar tube,
Locking sleeve,Ezy lock overshot head,Compression spring,Lifting dog,Spring Pin,Set screw,Spring pin)
We manufacture core barrels,drill rigs,overshots,impregnated diamond core drill bits,reaming shells,diamond casing shoe bits,PDC core bits,tunsten carbide core bits,electroplated core bits. With special high-freuency welding tenhniues,PDC of high wear resistant is welded to the body as cutting edges.PDC bit is mainly used for geological prospecting,coal ecploration,water conservancy and power engineering,etc

(1) Impregnated diamond core drill bit,surface set diamond core drill bit,PDC core bit,tungsten carbide core bit,geocube core bit,electroplated core bit
(2) Surface set diamond reaming shell,PCD reaming shell,tungsten carbide reaming shell,electroplated reaming shell
(3) Impregnated diamond casing shoe bit and casing bit,surface set diamond casing shoe bits,tungsten carbide casing shoe bit
(4) core barrels of patterns A,B,N,H,P,HWF,PWF,SWF,UWF,412F,T2-56,T2-66,T2-86,T2-101,T6-131. And single tube core barrel,double tube core barrel,wireline core barrel,Jet-type reverse circulation core barrel
(5) N overshot,H overshot,wireline overshots

 
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