The internal hook is a fishing tool used for inside casings or oil tubing to catch all kinds of ropes and fish such as wire-lines, cables, steel logging pieces, paraffin cutters, etc. Internal hooks are available in a live(adjustable) type and dead(fixed) type.
Type | Max. O.D. (mm) | Connection (in) | Casing / tubing size (in) |
NG73 | 73 | 2 3/8 tubing coupling | 3 1/2 tubing |
NG95 | 95 | NC26 | 4 1/2 tubing |
NG114 | 114 | NC31 | 5 1/2 casing |
NG136 | 136 | NC31 | 6 5/8 casing |
NG150 | 150 | NC38 | 7 casing |
NG176 | 176 | NC38 | 8 5/8 casing |
NG190 | 190 | NC38 | 9 5/8 casing |