Fishing Tools

Fishing tools are specialized mechanical devices used to recover lost equipment downhole. They fall into four main types: diagnostic tools, inside grappling tools (spears), outside grappling tools (overshots), and force intensifiers (jars). Diagnostic tools, such as impression blocks or downhole cameras, help identify the fish’s shape and position. Spears engage from inside by threading into the fish, while overshots capture it from the outside and may include light milling capability. Jars act as downhole hammers to apply strong impact forces during recovery operations.

Saxon offers Chinese, UK and USA brands for Fishing tools.

When should a fishing operation be attempted instead of sidetracking a well?

A fishing operation is preferred when the stuck or lost equipment can be safely retrieved without compromising well integrity or increasing operational risk.

How does fish shape and position affect fishing tool selection?

The external profile, internal diameter, and orientation of the fish directly determine whether a spear, overshot, or magnet should be used.

What risks are associated with improper fishing tool engagement?

Incorrect engagement can damage the fish, worsen sticking conditions, or make recovery impossible without milling operations.

How do fishing tools help reduce non-productive time (NPT)?

Effective fishing tools enable faster recovery of downhole equipment, minimizing rig downtime and avoiding costly well abandonment.

What information is required before selecting a fishing tool?

Key information includes fish dimensions, thread type, well deviation, depth, and downhole conditions such as debris or restrictions.