Unionlever (Group) Petroleum Equipment Co.,Ltd.

Internal Hooks

 




Internal hook
is used for casings or tubing to catch a variety of ropes and other fisher such as wire lines, cables of well logging, steel pieces, paraffin cutters etc. Internal hooks are available in two types: adjustable internal hook and fixed internal hook.

 

During use process, the internal hook inserted into ropes or other falling objects, when pick up the drill stem, the falling objects was hooked by hook tooth then taken to the ground.


Type

Max. O.D.
(mm/inch)

Joint Conn.
API

Go down casing/tubing

WG73

732-7/8

2 3/8UP TBG

3 1/2tubing

WG95

95(3-3/4)

NC26

4 1/2tubing

WG114

114(4-1/2)

NC31

5 1/2tubing

WG150

150(5-29/32)

NC38

7tubing

WG190

190(7-15/32)

NC38

9 5/8tubing

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